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A DIVISION OF INSTRUMENT SYSTEMS CORPORATION

vc-u8 t470 PARK AVENUE HUNTINGTON NEW YORK 11743 t(516) 549-6000 TWX 510-226-6983 Cable INSSYSTHTGN

httpsntrsnasagovsearchjspR=19770017825 2019-02-03T130314+0000Z

FINAL TECHNICAL REPORT

EVALUATION OF LIGHTWEIGHT HEADSETS FOR SPACE SHUTTLE

APPLICATION

CONTRACT NAS-9 14824

DATA ITEM - MA-129T

OCTOBER 1976

TELEPHONICS CORPORATION 770 PARK AVE

HUNTINGTON NEW YORK


TABLE OF CONTENTS

Abstract

Pictoral Description of Headsets

Description of Test Methods

1 Intelligibility

A Earphones

i General ii Screening of Subjects

iii Training of Subjects

B Microphones

2 Frequency Response amp Sensitivity

A Microphone

B Earphone

3 Distortion

4 Impedance

T Data Results Section

A Rank Order of Earphones

B Rank Order of Microphones

C Microphone Frequency Response and Sensitivity

D Earphone Frequency Response and Sensitivity

E Impedance

F Weight

G Distortion

H Wearer Comfort


Appendices

A Sample Letter to Respective suppliers

B List of Manufacturers Solicited

C Subject Audiograms

D Microphone Measuring System

E Earphone Measuring System

F Raw Data


ABSTRACT

The objectives of this study were to obtain contemporary lightweight headsets currently being manufactured and evaluate them for

o Intelligibility o Frequency Response o Sensitivity

o Distortion o Noise Isolation o Acoustic Quality o Weight

o Wearer Confort

Thirty two letters a sample of which is in Appendix A were sent to manufacturers (See Appendix B) of commercial and military headsets Five of the manufacturers responded affirmatively with a total of eight headsets for evaluation

Each headset was rank ordered for the catagories where statistically significant numbers were obtained Subjective comments were good fair or poor when applied to human factors critiques


I Pictoral Description of Headsets

Avid

LT-730 Manufacturer

Model Microphone Dynamic first

order Gradient

CircumauralEarphone dynamic

TelexManufacturer Model 5x5

Microphone Electret First Order

Gradient Ear Insert MagneticEarphone

to

I Manufacturer Model Microphone

Earphone

I

I Manufacturer Telex Model TAM-29 Earphone Supraaural dynamic

I

I S Z5 Y L

NOF

Sennheiser HMD 110 Dynamic super cardiod Circumaural dynamic

ORIGINAL

POOR QUA

Manufacturer Roanwell Model 125610

Microphone Magnetic first order gradient

Earphone Magnetic Circushymaural

Manufacturer Model Earphone

Telex A610 Circumanural magnetic

I

ORIGN P7a

- -

I

Manufacturer Sennheiser

Model HMD 414 Microphone Dynamic super

cardiod Earphone Supraaural dynamic

UnexManufacturer Model HS-2A Earphone Single ear insert

magnetic Microphone Electret First

order gradient

1

QU4Lpoundn

A s V

II Description of Test Methods

A Earphones

The method of measuremert presented herein was the PB (phonetically balanced) monosyllabic word tests The subjects listened in a quiet and in a noisy environment

0 General

Five subjects were used in the testing The listeners were seated in a semi reverberant room isolated from the talker The talker used a BampK condenser microphone with a foam breath shield The talker held the breath shield to his or hers lips and simultaneously viewed a VU meter to insure uniform talker sensitivity for the duration of the testing The listeners were allowed to adjust the volume level for each test until a comfortable level was achieved

Each headset had 5 listening tests in quiet and 5 listenshying tests in 90 dB of white noise

Actual measurements in the listening room were as listed

in Table A

TABLE A

SLM SETTING QUIET AMBIENT NOISE AMBIENT (DB) (DB)

A Weighting 36 91 C Weighting 63 91

315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85

1000 CENTER 22 84 2000 FREQUENCIES 22 85 4000 22 86 8000 22 76

16000 24 65


0 Screening of Subject

The subjects were selected on the basis of a audiometric examination (Audiograms are in Appendix C) The tests were performed by a certified audiometrist The hearing loss of the selected subjects did not average more than 10dB

The talkers and listeners had no speech defects or strong accents The subjects were used no more than I hour each day to prevent inattentiveness and biased results which can accompany lengthy psychophysical testing

o Training of Subjects

The subjects were trained by reading PB word lists to each other in quiet face to face communication without the use of headsets These procedures were repeated until 96 or better scores were universally achieved

The subjects were then trained using a BampK consenser microphone and a Kass ESP-9 electrostatic headset until the same scoring efficiency was achieved

B Microphones

The method of measurement used the same subjects and ambient as was used for the earphone testing

The talker was seated in the semi reverberant room while the listener was isolated in another room The listener used a pair of Koss ESP-9 electrostatic earphones and was allowed to adjust the level until comfortable

The talker positioned the micro phones inch from their lips and was presented with sidetone to the headset Five tests were taken in quiet and in 90 dB of white noise


2 Frequency ResponseSensitivity

A Microphone

A constant SPL of 94dB was used to excite the microphone under test A BampK system illustrated in Appendix D was used to sweep the frequency and to record the microphone output The sensishytivity was recorded as EP

The microphones were measured under open circuit condition The sensitivity in dB re 1VNm 2 and the EOL rating are given on the response curves The EOL rating will give the sensitivity data in terms of power to allow comparison of the microphones with different impedances

EOL = 20 log E -10 Log R + 24 (Effective Output Level)

where E = open circuit microphone output in volts when SPL is 10 dynes cm2 or 1 Newtonm 2 or I Pascal or 94dB SPL

R = microphone impedance in ohms

B Earphone

A constant source of I milliwatt was fed to the earphone under test A General Radio system illustrated in Appendix E was used to sweep the frequency and to record the earphones output

A flat plate coupler using a BampK inch microphone was used to couple the headset to the recording microphone The earphone response curves shown in the DATA SECTION are not to be construed to represent how the ear senses the earphone output There is at present no coupler that can claim recognition as a true artificial ear although some do approximate subjective data at the lower frequencies The curves are taken so that an AB type comparison can be made between earphones as to their general efficiency and frequency response


3 Distortion

Distortion measurements were made at 300 1000 and 3000 HZ using the test set up described above with the addition-of a Hewlett Packeard model 333 distortion analyzer The SPL was held at 100 dB at the microphone and from the earphone for the distortion

measurements

4 Impedance

The impedance of the microphone was measured-using the 6dB down method ie The open circuit voltage was measured for a input SPL of 94 dB The microphone output was then loaded with a precision variable resistor The microphone impedance was taken as the reading variable resistor indicated when the initial microphone voltage measured was attenuated 60 dB

The earphone impedance was measured using the dual voltshymeter method The current in the circuitbelow was measured using a precision 10 ohm resistor The earphone impedance was then read directly on meter 2


AUDIO 1 Z EARPHONE OSCILLATOR

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EARPHONE IMPEDANCEMEASUREMENT

III Data Section

A Rank Order of Earphones for Intelligibility Noise Isolation (The best intelligibility in noise condition this deemed the best noise solation and is not to be construed as noise

attentuation of the heads3t)

INTELLIGIBILITY QUIET (X) V1- NOISE (X)

1 TAH-29 968 303 922 376 2 125610 96 28 765 235 3 HMD110 94 71 704 185 4 5 x 5 956 46 60 215 5 LT-730 965 10 51 254 6 HS-2A 952 36 50 110 7 HMD414 976 26 448 129 8 A610 92 32 156 93

The statistical significance of the various measurements are shown in Appendix F together with the Raw Data

B Rank Order of Microphones for Intelligibility Noise Isolation

INTELLIGIBILITY QUIET (X)

I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11

C Microphone Frequency Response and Sensitivity Figures

A OIVISION OF INSTRUMENT SYSTEMS CORPORATION

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E Impedance

HEADSET MICROPHONE (OHMS) EARPHONE (SINGLE)

1 HMD110 245 200 2 HMD414 235 2500 3 HS-2A 1000 740 4 5x5 40 (from decopling 980

circuit) 5 A610 No Mic 270 6 TAH-29 No Mic 320

7 LTV-730 300 270 8- 125610 190 280

F Headset Weight (Lightest to 1eaviest

1 HS-2A 33 grams plusmn10 2 5x5 210 gr ns 3 A610 240 gruns 4 HMD414 330 grams 5 125610 345 grains 6 TAH-29 360 grams 7 LT-730 430 grams 8 HMDII0 436 grams

G Distortion

The microphones and tarphones measured less than 5 distortion at the 100 dB SL lexel Since the noise figure of the BampK microphone is 46 dB SPL equ valent the lowest distortion measureshyment possible is 2 for tie earphones The Artifical voice of BampK is rated at less than 1 It was determined that the distortion levels of all microphones and eaiphoneswere satisfactory More stringent

measurements were deemed beyond the scope of this report

A DIVISION OFINSTRUAENT SYSTEMS CCMPORATION

1 Wearer Comfort

The subjective comments concerning wearer comfort were taken after the headset had been worn in the test for intelligibility

SUBJECT 1 2 3 4 5 AVG

TAH-29 T F G F - G-HMDIO P G F F F F HMD414 P G G P F F LTV730 G G G G- G G 125610 F G G F F F+ A610 F G F F F F HS-2A P G G F F F+ 5x5 P P P P P P

P = POOR F = FAIR G = GOOD


APPENDI CIES


770 PARK AVENUE HUNTINGTON NEW YORK 11743 (516)-549-6000 TWX 510-226-6983 Cable INSSYSTHTGN

ilaro 9 197c

Gentlemen

Telephonics has recently been awardeG a Government contract to develor a shymanufacture a state-of-the-art audio corimunication system for the Space Shuttle program

One aspect of this effort will be to evaluate a light weight headset (consisting of noise cancelling microphonc and earphones) currently available for parameters which will include intelligibility frequency response sensitivity distortion noise isolation acoustic quality reliability weight wearer comfort maintainability and environmental stamina

The test conditions have not been formally defined at this time ilowever all headsts will be tested under identical conditions using AITSI or military test procedures It is noted that Telephonics does not have a headset which will be part of this evaluation program

If you feel that you have a headset(s) suitable for the Space Shuttje program we would appreciate receiving a technical description together with price and delivery quotation for an evluation unit at your earliest convenience

Sincerely

TELEFHOIICS A Division of Instrument Systems Corporation

Ed Joscelyn Audio Products Engineering Manager ORIGU4AL PAGE IS

ADE OOR QUALMC

S OF~ CA DIVISION INSTRUMENT SYSTEMS CORPORATION

APPENDIX B

LIST OF MANUFACTURERS SOLICITED

Adec Inc David Clark Sennheiser J Ray Morris Tibbetts Industries Bolt Beranek amp Newman Dyna Magnetics Devices Allen Tel Products Altec Corp Altec Div Applied Magnetics Corp Astatic Corp Astro com Electronics Inc Audiosears Corp Avid Corp JC Carter Co Conrac Corp Turner Div Dobbs - Stanford Corp Dukano Corp Electro Vox Industries ultonElectrovoice Inc

Knowles Electronics Koss Corp Lear Siegler Inc Matsushita Panasonic Mura Corp Murdock Corp Philmore Mfg Co Plantronics Co Roanwell Corp Rye Industries Scintrex Inc Telex Communications Co


APPENDIX C May 24 1976

TELEPHONICS SCREENING AUDIOMETER

THD-39 with MX41AR SPL FOR 60 DE HTL

NORMAL CAL LEVEL MEAL URED LEVEL FREQ (ANSI 1969) RD BLUE

250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775

A DIVISION OF INSTRUMSNTSYSTEMS CORPORATION

A UD IOG RAM J OE 10 1

HI DECIEL LOSS 250 500 1000 2000 4000 6000

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AUAjjOGRAM RESULTS0

S orAwad to Cosult Eor Doctor RIGHT 0 1 E

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AUDIOGRAM CATHY D Hz DECIBEL LOSS 250 500 1000 2000 4000 8000

RIGHT

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Tochn ItIon ______________________

CHFCK ONE- r ANSI Audiometer

tz ISO Station ------ Soriol No [ -ASA p te T me

PllNJ tED IN USA EMPLOYERS INSURANCE OF WAUSAU

APPENDIX D

BEAT FREQ OSC TYPE 1IZ

BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o

LEVEL ReCORfl R ARTIFICIAL tAOUTH TPt Z305 VOLTmETERAIAPL TYPE- 4-21( DP6UL K4 TYPE RULL 6 KJampVjR 400 CAL

1rEW LE TT PACKARD

MICROPHONE TEST APPARATUS


APPENDIX E

BEAT- FRFQ AUDIO ampEH TYPE 3048 GENERAL RADIO

EARPHONEUNDampR TEST

MI0POWER SUPPLYf TYPE ZO

e BRUEL CKJFP

GRAPHIC LEVEL HALFIM COUDEKSER MIC TYP 4133 ANDRECORDER CATHODE FOLLOWEPRTYPE15210 TYPE Z0I4

GEBNERAL RADIO BRUEL a KJampR

4ishy8A

-+ 4gDIA ZCC VOLUME~

2c COUPLERFLAT PLATE COUPLER

EARPHONE TEST APPARATUS


HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16

A DIVISION OF INSTPJMENT SYSTEMS CORPORATION

HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285

A DIVISION OF INSTRUMET SYSTEMS CORPORATION

5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215

A DIVISION OF INSTR JMENT SYSTEMS CORPORATION

UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110

A DIVISION OF INSTRUMENT SYSTEMS CO(PPATION

125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352

A DIVISION OF INSTRUMNTSYSTEMS CORPORATION

HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932

A DIVISION OF INSTRUMENT SYSTEMS COAPORATON

LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542

A DIVISION OF INSTALMENT SYSTEMS CORPORATION

Statistical Significance

The statisuical significance of the intelligibility data is calculated below The A-distribution test was used -erstfts- of the-The test illustrates that the rank ordering in many cases is justified The large variance between subjects however in other cases showed the data not sampled sufficiently to achieve statistical significance Samples from perhaps 20-30 tests would be necessary to accomplish this end

The following example illustrates the calculation techniques used

A DIVISION OF (NSTRUMENT SYSTEMS CORPORATION

Comparison of HMD414 and A610 earphone under no noise conditions

X414 - )76

X610 =92

Pick 90 as arbitiary origin

Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025


Cirtical value 025 plusmn 136 (2776) + 200 (2776) = plusmn 2776

136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833

This does not lie within critical values plusmn 2776 and therefore the 414 can be considered statistically significantely better than the A610


TAH-29 Compared to 125610 Earphone in noise

X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325

Not Statistically Sig


The statistical signficance for noise is indicated in the matrix below

Headset In Columnbelow is statistically significant when compared to headset in Column to the right

TAH29 125610 HMD110 5x5 LT-730 HS-2A HMD414 A610

TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610

Indicates Statistically Signitizant

MicrophoneHeadset

(Not all combination calculated)



FINAL TECHNICAL REPORT

EVALUATION OF LIGHTWEIGHT HEADSETS FOR SPACE SHUTTLE

APPLICATION

CONTRACT NAS-9 14824

DATA ITEM - MA-129T

OCTOBER 1976

TELEPHONICS CORPORATION 770 PARK AVE

HUNTINGTON NEW YORK


TABLE OF CONTENTS

Abstract



1 Intelligibility

A Earphones



B Microphones


A Microphone

B Earphone

3 Distortion

4 Impedance






E Impedance

F Weight

G Distortion

H Wearer Comfort


Appendices






F Raw Data


ABSTRACT




o Wearer Confort





Avid

LT-730 Manufacturer


order Gradient





to


Earphone

I


I

I S Z5 Y L

NOF


ORIGINAL

POOR QUA






I

ORIGN P7a

- -

I






order gradient

1

QU4Lpoundn

A s V


A Earphones


0 General




in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



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- -

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100 200

Al +- -

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L

1000

l -shy

2000

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I

10000 20000-

1 HMDII0 MICROPHONE

i4 i- j n -- v j _- _ i -shy


r -

- -I- - - j1r

I --42-- shyi shy

50 100 200 500 loon 2000 511000 10000 20000


] -+Tr -T-- --ET - L r -i + -- J --I -


- f - -- -- ~shy

- ~7 t

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50 100 200 3z500 1000 2Z33- 1r) 10000


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7 IF1- j- i

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----

I t jlI iH

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5000 10000 20000500 1000 2000 z 50 100 200


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1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




TABLE OF CONTENTS

Abstract



1 Intelligibility

A Earphones



B Microphones


A Microphone

B Earphone

3 Distortion

4 Impedance






E Impedance

F Weight

G Distortion

H Wearer Comfort


Appendices






F Raw Data


ABSTRACT




o Wearer Confort





Avid

LT-730 Manufacturer


order Gradient





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in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

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III Data Section








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952 940 872 824 810 748

268 316 99 16 45 11



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7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

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500 2 020 2---0

15

S 151

4 40

2000

20001

5

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70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

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n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

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200 0 0

I

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10 20

405

S

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AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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70 80

900

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BLUE

Q I

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ONE r -AN 44OL ISO

Technicion _______________


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_AUDIOGRAM MARIE Ft


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deg __ __ deg L __ _ _I_ 0 5 60 60

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I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




Appendices






F Raw Data


ABSTRACT




o Wearer Confort





Avid

LT-730 Manufacturer


order Gradient





to


Earphone

I


I

I S Z5 Y L

NOF


ORIGINAL

POOR QUA






I

ORIGN P7a

- -

I






order gradient

1

QU4Lpoundn

A s V


A Earphones


0 General




in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



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+ 0

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Al +- -

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L

1000

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2000

5000

I

10000 20000-

1 HMDII0 MICROPHONE

i4 i- j n -- v j _- _ i -shy


r -

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1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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0 -shy__ _

5000

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n-70 100I

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

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RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

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60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




ABSTRACT




o Wearer Confort





Avid

LT-730 Manufacturer


order Gradient





to


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TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



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1-7f- 7 8

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

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0

1--20

3-0

60

6~000o 00

n-70 100I

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2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





Avid

LT-730 Manufacturer


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315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


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A Microphone






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3 Distortion


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4 Impedance





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1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

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500 2 020 2---0

15

S 151

4 40

2000

20001

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70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

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Tochnicl So

Stal on

n

Sorial

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Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

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200 0 0

I

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10 20

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AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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70 80

900

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BLUE

Q I

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ONE r -AN 44OL ISO

Technicion _______________


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deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





Earphone

I


I

I S Z5 Y L

NOF


ORIGINAL

POOR QUA






I

ORIGN P7a

- -

I






order gradient

1

QU4Lpoundn

A s V


A Earphones


0 General




in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



Co - ---h -

T

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I- 1I4HL i 47 I~ I Z 1

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+ 0

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100 200

Al +- -

500

L

1000

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2000

5000

I

10000 20000-

1 HMDII0 MICROPHONE

i4 i- j n -- v j _- _ i -shy


r -

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50 100 200 500 loon 2000 511000 10000 20000


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20 500 1001) 2000 5000 10000 20000

4 125610 MICROPHONE

----

I t jlI iH

1 I- rI T-O4 I--li-Il 4 -6m __

Iii---- 2- Ishy

-- - I-I-4 --i- shyri---I-t

5000 10000 20000500 1000 2000 z 50 100 200


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7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

0 -- 0

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500 2 020 2---0

15

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4 40

2000

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_AUDIOGRAM MARIE Ft


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I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset









I

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in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








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A Microphone






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3 Distortion


measurements

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952 940 872 824 810 748

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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015

C_4- _

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5000

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

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250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

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600

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3000

6000

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10 Z

0 70sos 80

90

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r

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60

70

80

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Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




- -

I






order gradient

1

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A s V


A Earphones


0 General




in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

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III Data Section








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952 940 872 824 810 748

268 316 99 16 45 11



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1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

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500 2 020 2---0

15

S 151

4 40

2000

20001

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70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

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Tochnicl So

Stal on

n

Sorial

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Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

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200 0 0

I

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10 20

405

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4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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70 80

900

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Q I

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ONE r -AN 44OL ISO

Technicion _______________


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_AUDIOGRAM MARIE Ft


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Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





A Earphones


0 General




in Table A

TABLE A



315(HZ) 65 63 63 52 57

125 47 67 250 OCTAVE 37 81 500 BAND 32 85


16000 24 65








B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



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T

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2000

5000

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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

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500 2 020 2---0

15

S 151

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2000

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I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset










B Microphones






A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

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III Data Section








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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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NSIAu~diometer --

TGm_3000 6000

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RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

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Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





A Microphone






B Earphone




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

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952 940 872 824 810 748

268 316 99 16 45 11



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G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

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- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


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woo- shy

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RESULTS 8000 100100110 ---shy -shy3 00 6 0

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Sorsal No lo


_AUDIOGRAM MARIE Ft


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S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




3 Distortion


measurements

4 Impedance





shy

_ __ - _

10

Zt 7

I


III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

(

167 245 18 22 22 11

NOISE (X)

952 940 872 824 810 748

268 316 99 16 45 11



Co - ---h -

T

rE--- A - - -141

I

--

r-

I

- -

-

804a-w-t---~

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t-ri

-Tn bull1 I-

F

____

-_---


-

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--

W

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-

__4

-

-VE

iO 20 H7 50 100 200 500 1000 2000 5000 10000 20000


o-

- --

777

I- 1I4HL i 47 I~ I Z 1

- -

+ 0

-- - +

100 200

Al +- -

500

L

1000

l -shy

2000

5000

I

10000 20000-

1 HMDII0 MICROPHONE

i4 i- j n -- v j _- _ i -shy


r -

- -I- - - j1r

I --42-- shyi shy

50 100 200 500 loon 2000 511000 10000 20000


] -+Tr -T-- --ET - L r -i + -- J --I -


- f - -- -- ~shy

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t

----

74 -I shy0A

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50 100 200 3z500 1000 2Z33- 1r) 10000


--


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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





shy

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III Data Section








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(

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

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Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

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4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

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_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




III Data Section








I HMDII0 984 2 5 x 5 980 3 1MD414 988 4 125610 976 5 HS-2A 950 6 LT-730 988

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1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

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500 2 020 2---0

15

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4 40

2000

20001

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AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

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AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

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70 80

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RESULTS 8000 100100110 ---shy -shy3 00 6 0

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Cl05 of Inpohrmont

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Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




Co - ---h -

T

rE--- A - - -141

I

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o-

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777

I- 1I4HL i 47 I~ I Z 1

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+ 0

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100 200

Al +- -

500

L

1000

l -shy

2000

5000

I

10000 20000-

1 HMDII0 MICROPHONE

i4 i- j n -- v j _- _ i -shy


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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

0 -- 0

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- - -

500 2 020 2---0

15

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4 40

2000

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_AUDIOGRAM MARIE Ft


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Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




o-

- --

777

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Iii---- 2- Ishy

-- - I-I-4 --i- shyri---I-t

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7 Tr -_ -



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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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70

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S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

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Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

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500 2 020 2---0

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2000

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Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

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500 2 020 2---0

15

S 151

4 40

2000

20001

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70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

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Tochnicl So

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Sorial

__

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AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

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200 0 0

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10 20

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70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


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Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

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TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



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HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

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S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

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3

S2 = 142 284 X29 5

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4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

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X

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TAH-29

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ILTL-730 HS-2A - HMD414 A610


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7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

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7 0 so

70 70 80

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1500 110BL

3000 6000

CIo- of )mpoirn~nt

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AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

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200 0 0

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10 20

405

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4000 0 0 1 0 o

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AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


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Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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015

C_4- _

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5000

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n-70 100I

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

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RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

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600

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6000

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10 Z

0 70sos 80

90

-

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60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset






~

I-amp Hi--


+ 47 t i t t

0 51

0

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APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

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500 2 020 2---0

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2000

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Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




2

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

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NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

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250 7 LEFT 0

10 10 Soo--

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15 15 o_____ o o

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0 70sos 80

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70

80

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S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

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Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


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7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

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0

0 -- 0

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- - -

500 2 020 2---0

15

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2000

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_AUDIOGRAM MARIE Ft


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deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

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0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

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Tochnicl So

Stal on

n

Sorial

__

n rkI N o


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200 0 0

I

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AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


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woo- shy

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70

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S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

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Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

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- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

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70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

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200 0 0

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AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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70 80

900

90o 100

110

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Q I

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Technicion _______________


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Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




--r-- -- ---1lt-t 1~k4tw --- - plusmn1_- - S7

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Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

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lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

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AUDIOGRAM RUSS G 250 500 1000 2000 400000

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250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

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t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




1 ITT- M -- 7

o L _ Tj~ ---L Tj 1

a Tin tI t--

9 I V1 - - -shy+

1r IT rr_-J]

_VIKF-1

I- rt t7-4 ~ ~ 42 fijta+r Sr -LI- - 1

1o 01 1oo o 10 ~ t

20- q rt1 It ~ m 67 0703 07810 1000 10000 20i


4b RIGHT

7 Tr -_ -



z~~~ 1_ o - ~ 14-b -T

W_ 177


0 0- 0K 8 Iw1 g 1o 90 0 H CZ3 ]f1- L$ - 01 o



1fi --- i ~

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--


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F - q -

A 7_ I - = 7 --

Li r-i- 4tr 6- M-I

0 I _ jN A

S tooo 4 4 4r4t 2C



-shy

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p-- 1

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1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

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0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




7 Tr -_ -



z~~~ 1_ o - ~ 14-b -T

W_ 177


0 0- 0K 8 Iw1 g 1o 90 0 H CZ3 ]f1- L$ - 01 o



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1-7f- 7 8

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

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015

C_4- _

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

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60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




1fi --- i ~

8 9 2 l r L I L

Jf i- iA I T2 T __

00

IllI


5b RIGHT

--


- T M -_ ___ L7 L -

IN I I X I t Hishy

F - q -

A 7_ I - = 7 --

Li r-i- 4tr 6- M-I

0 I _ jN A

S tooo 4 4 4r4t 2C



-shy

j~

p-- 1

J

Iq I

m iTtjL 1-4 F _

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o-r

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+

_

7

20 5 0 7aV1


C


- - -shy

shy- - - -- - i$ A-t

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01001000(

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5

IN

6 7 8 0 I23

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7b IH

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T-

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1Il -Ii-- -I 1Ltll_ I7i-7 - -414

tt j

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~- -- ------i I

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-

-__

- -shy

1 i up t


8a A6 0 E RPO ( E T

1[0 2C

L L tz -f- I

1 ---- 1 11M

44I--+ L - f 1 r r -4-tj

1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




--


- T M -_ ___ L7 L -

IN I I X I t Hishy

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

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0 -shy__ _

5000

I

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6~000o 00

n-70 100I

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110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




-shy

j~

p-- 1

J

Iq I

m iTtjL 1-4 F _

414

o-r

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+

_

7

20 5 0 7aV1


C


- - -shy

shy- - - -- - i$ A-t

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6 7 8 0 I23

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8a A6 0 E RPO ( E T

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1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




- - -shy

shy- - - -- - i$ A-t

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0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

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6~000o 00

n-70 100I

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A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

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t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




Z

-shy

7

T11

-t

-- J-deg

77

- 774~4T

+

T-

l i

1Il -Ii-- -I 1Ltll_ I7i-7 - -414

tt j

i L

~- -- ------i I

Ai-i

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1

7rV-ishy

--

-

-__

- -shy

1 i up t


8a A6 0 E RPO ( E T

1[0 2C

L L tz -f- I

1 ---- 1 11M

44I--+ L - f 1 r r -4-tj

1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




L L tz -f- I

1 ---- 1 11M

44I--+ L - f 1 r r -4-tj

1-7f- 7 8

~ amp i t p ~ r sI r F ]1 r ___ -

0 3 4 3 0 7891 2 a 4 s 67 897


Sb RIGHT

E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




E Impedance




7 LTV-730 300 270 8- 125610 190 280



G Distortion




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




1 Wearer Comfort






APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




APPENDI CIES



ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





ilaro 9 197c

Gentlemen





Sincerely



ADE OOR QUALMC


APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




APPENDIX B









250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset








250 HZ 855 870 835 500 HZ 715 710 695

1000 670 6(5 665 2000 690 6 O 670 3000 700 700 690 4000 695 695 685 6000 755 750 775



HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





HI DECIEL LOSS 250 500 1000 2000 4000 6000

250

RIGHT LEFT 01

0

0 -- 0

-shy

- - -

500 2 020 2---0

15

S 151

4 40

2000

20001

5

0 0

01-2

0 ol 601r

7 0 so

70 70 80

AUAjjOGRAM RESULTS0


1500 110BL

3000 6000

CIo- of )mpoirn~nt

ECK 00r AljNSI

) ISO

Tochnicl So

Stal on

n

Sorial

__

n rkI N o


Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




Hz EC1-rL IOSS

AUDIOGRAM JUNE 0 250 500 1000 2000 4000 8000

1L _0

HO S Soo2500

200 0 0

I

-30 -4 -__--1--20t-3 40 -- _50 -shyj---2 4----

10 20

405

S

4000 0 0 1 0 o

amp)00 I

AUDIOGRAM RESULTS

[0 Haring Normlshy


70 -i

-shy

lo - I I__ L- 4

no - L t 11500 3000 6000


70 80

900

90o 100

110

BLUE

Q I

1117CKv

ONE r -AN 44OL ISO

Technicion _______________


r _ A Sh - I A Igot


H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




H

250

woo- shy

^_ D __~


150

3 0 _____________

00 0

- -o6 0t0

AUDIOGRAM RUSS G 250 500 1000 2000 400000

Ideg___- -0 -I _I10

I I I

015

C_4- _

0 -shy__ _

5000

I

0000I -

_ I0

0

1--20

3-0

60

6~000o 00

n-70 100I

-shy r-_

7- 0

2lt

___

1j AdAsoed

ofrT

A



110 - O1500

NSIAu~diometer --

TGm_3000 6000

Scrll No - - -shy

11 0

ImpirBan



RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





RIGHT

250 7 LEFT 0

10 10 Soo--

L oo 1000 1

15 15 o_____ o o

L5o so500

-2 20 _o

600

1~T -_i-------

t

t

60

0 0 ---

3000

6000

_L O 10oo

0s0o 0

115

10 Z

0 70sos 80

90

-

-

- -

- m

__ _-

r

-

60

70

80

90

Id

S AUDIOGRAM _10

RESULTS 8000 100100110 ---shy -shy3 00 6 0

l---i I50110

o



Cl05 of Inpohrmont

I


Tochniclan

Stotion ate

Audiometer

Sorsal No lo


_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




_AUDIOGRAM MARIE Ft


RIGHT LEFT 0 - _ 0

Sit I i0 00 -

S 10 150 02 I301000 5 10 - 30

deg __ __ deg L __ _ _I_ 0 5 60 60

A _0____ 0 20 90o90 30

I 100000 0 I


Norma 1500 3000 6000 Lo o


Tochn ItIon ______________________




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




APPENDIX D


BRAIU G SCJER~

MtW AMPL

TYPE 2603 12 o


1rEW LE TT PACKARD



APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




APPENDIX E




e BRUEL CKJFP



4ishy8A





HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




HMD- 110 MICROPHONE

x X-X (X-7) 2

98 -4 16 98 -4 16 100 16 256 96 -24 576

100 16 256 492 112

S= 984 V= 28 Q-= 167

NOISE

X X-X (X-X)2

100 48 2304 94 -12 144 94 -12 144 94 -12 144 94 -12 144

476 288

X = 952 V = 72

= 268


5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




5x5 MICROPHONE

QUIET

XX-X (X-X 2

98 0 0 94 -4 16 98 0 0 100 2 4 100 2 4 490 24

X = 980 V= 6

=r 245

NOISE

X X-X (x-x) 2

98 4 16 90 -4 16 92 -2 4 94 0 0 96 2 4

470 40

X = 940 v= 10

tr-= 316


X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




X

LT-730

MICROPHONE

QUIET

X-J (x-x) 2

98 -8 64 100 12 144 i00 12 144 98 -8 64 98 -8 64

494 48

x = 988 V= 12

CI= 1095

NOISE

Xx- (xX)2

64 108 11664 78 32 1024 64 108 11664 90 152 23104 78 32 1024

374 4848

S= 748 V =1212 o-= 110


HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




HMD414 MICROPHONE

QUIET

x X-x (X-X) 2

100 12 144 100 12 144 98 -8 16

100 12 144 96 -28 784

494 1234

X = 988 v = 308

a = 175

NOISE

x X-x (X-X) 2

90 28 784 72 -152 23104 98 108 11664 84 - 32 1024 92 48 2304

436 3888

X = 872 V = 972

C- = 985


125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




125610 MICROPHONE

QUIET

-X)x xJ

96 -16 256 100 +24 576 96 -16 256 96 -16 256

100 +24 576 488 192

x = 976 v = 48 C = 219

NOISE

x x-x (x-x) 2

94 116 13456 80 -24 576 56 264 69696 86 36 1296 -96 136 18496 412 10352

X= 824 V = 2588 O--= 16


HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




HS- 2A MICROPHONE

QUIET

x x-x (X-X) 2

98 3 9 92 -3 9 96 1 1 94 -1 1 95 0 0

475 20

X - 950 V= 5 ampr= 233

NOTSE

x X-X (X-X)2

80 -1 1 82 1 1 74 -7 49 86 5 25 83 2 4 81 80

R = 81 V = 20

oy-= 447


TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




TAH-29 EARPHONE

QUIET

x x-x (x-x)

92 -48 2304 96 - 8 64 98 L2 1414 98 [2 144

100 32 1024 484 36P

X 9c8 V r 92

303

NOT S E

x X-X

98 58 3364 94 18 324 90 -22 484 90 -22 484 89 -32 1024

461 568

X = 922 V = 142 d- = 3 76

ORIGINALPAGE Is


HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




HMD414

EARPHONE

QUIET

x X-X (x-x)2

96 16 256 94 -36 1296

100 24 576 100 24 576 98 4 16

488 272

x =976

v 68 c = 26

NOISE

X X-X (X-X)2

50 52 2704 40 -48 2304 30 -148 21904 64 192 36864 40 - 48 2304 224 6608

= 448 V =1652 a-= 1285


5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




5x5

EARPHONE

OUiET

x _x

x-x 2

(x-X) 2

98 24 576 98 -76 5776 96 4 16 96 4 16

100 44 1936 478 832

=-956

V = 208 C = 456

NOISE

x X-X (X-X)2

74 +14 196 40 -20 400 54 - 6 36 42 -18 324 90 30 900

300 1856

X = 60 V =464

C-= 215


UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




UNEX HS-2A

EARPHONE

QUIET

X X-7 (X-X)2

94 -12 144

90 52 2704

96 8 64

100 48 2304

96 18 64

476 528

X= 952 V = 132 C= 363

NOISE

x X-x (X-X)2

48 -2 4

46 -4 16

66 16 256

36 -14 196

54 4 16

250 488

X = 50 V = 122 a-= 110


125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




125610 EARPHONE

QUIET

x x-x (X-X) 2

98 +2 4 92 -4 16 96 0 0 98 2 4

384 24

x= 96 v= 8 o = 283

NOISE

x X-X (-Rz

88 -115 13225 82 55 3025 94 175 30625 42 -345 119025 306 1659

X= 765 V = 553 0r-= 2352


HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




HMDI0

EARPHONE

QUIET

x x-x (X-X)

96 -2 4 94 0 0

100 6 36 98 4 16 82 -12 144 470 200

X= 94 Vr = 200 50

707

NOISE

x X-X_ (X-X)2

84 136 18496 66 44 1936 84 [36 18496 78 76 5776 40 -304 92416 352 13712

S= 704 V = 3428

ao-= 185


A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




A610 EARPHONE

QUIET

X X-X (x-X)

92 0 0 88 -4 16 90 -2 4 96 4 16 94 2 4

460 40

X = 92 V =10 d= 316

NOISE

x X-x (X-X)2

30 144 20736 20 44 1936 10 - 56 3186 8 - 76 5776 10 - 56 3136 78 3472

X = 156 V = 868

- 932


LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




LT-730

EARPHONE

QUIET

x x-X (X-X)

96 - 5 25 96 -5 25 96 - 5 25 98 15 225

386 3

X= 965 V -icr= I

NOISE

x X-X (X-X) 2

50 -1 1 48 -3 9 84 33 1089 22 29 841

204 1940

X 51 V =6466

ICY= 2542







X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset









X414 - )76

X610 =92


Let X-90 a =-9

414 414 610 610

6 36 2 4 4 16 -2 4 10 100 0 0 10 100 6 36 8 64 C =976-90 4 16 C610=92-90

316 414 60

f 22 2 316 - 5(5776) 68$4 14 -414 N4 14 C4 14 4

N414-1I

$612- 260-4) 1

10 6 - N6 1 0C610 = 60 5(4) = 100 - 1N610

S2 = 68 = 136 X414 5

S = 10 = 200 X6t 0 5

A(n = 4) = 27760 025



136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





136 + 200

to test difference

X414 - X6 1 0 976 - 92

2 2 S + S = 136 + 2 = 56 = 3055 X4 14 X610 1833




X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset





X29 = 922 Let = -X-90

Let C = i-90

X125 = 765

N=5 N=4

29 29 125 125

8 64 -2 4 4 16 -8 64 0 0 4 16 0 0 -48 2304 -1 1 C2 9 = 922-90 2378

T1

-Ns2 = _ 2 - 2C _ 81 - 5(22)2 = 14229 29 29 29 4

N29- 1 -N

25= 2378 - 4 (-135)22= 54966

3

S2 = 142 284 X29 5

2S2 = 54966 = 1374

4t125


t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




t025-= 284(2776) + 1374(3182) 284 plusmn 1374

= 44508 14024

= plusmn317

X

2 x

+ SV284 x

922 - 765

+ 1374 =1325






TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset







TAH-29

125610 HMDI10 I 5x5

ILTL-730 HS-2A - HMD414 A610


MicrophoneHeadset




0p 4 u.. - nasa · vc-u8, . t470 park avenue, huntington, new york 11743 ... microphone and a kass...

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