introduction of multichannel in dvb-s radio at ard · jürgen marchlewitz vdt symposium...
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Radio ProductionMultichannel-Radio at ARD
VDT Symposium
"5.1 Surround – Aesthetics and Tools"
Introduction of Multichannelin DVB-S Radio at ARD
November 2nd, 2005Schloss Hohenkammer
Jürgen MarchlewitzWestdeutscher Rundfunk Köln
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 2
Radio ProductionMultichannel-Radio at ARD
Introduction of Multichannelin DVB-S Radio at ARD
• Hardware - Technical facts• Production • Transmission • Continuity • Contribution• Distribution
• Software - The content• programs • promotion
Where we're standing now What's to do
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 3
Radio ProductionMultichannel-Radio at ARD
Multichannel Audio Production
• First steps in 5.1 in public radio broadcast have been made in production
• Broadcast-Production-Studios are usually equipped with Surround-Sound facilities since some years:Production Consoles, Audio-Workstations, Effects
• A lot of experiences in 5.1-Recordings during the last years, especially in the genres classical music and radio drama
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 4
Radio ProductionMultichannel-Radio at ARD
Cooperation with record - labels: multichannel - SACD - recording
Mozart:
Le Nozze Di Figaro
René Jacobs,
Concerto Köln
Grammy Winner 2005: "Best Opera Recording"
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 5
Radio ProductionMultichannel-Radio at ARD
Brahms:
The 4 Symphonies
WDR Sinfonie-Orchester Köln
Semyon Bychkov
Cooperation with record - labels: multichannel - SACD - recording
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 6
Radio ProductionMultichannel-Radio at ARD
Camille Saint-Saens:
Piano-Konzerte No.1-5
Anna Malikova, piano
WDR Sinfonie-Orchester Köln
Thomas Sanderling
Cooperation with record - labels: multichannel - SACD - recording
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 7
Radio ProductionMultichannel-Radio at ARD
Radio-Drama:
• Das Blindenspiel
• Das Herz von Jane Mansfield
• König Artus und die Ritter der Tafelrunde(6 Parts)
• Wunschzeit
Sept. - Nov. 2005
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 8
Radio ProductionMultichannel-Radio at ARD
Transmission
• meeting at BR in Munic in may 2003• Decision to test and demonstrate the
functionality of multichannel service for radio • Technical tests together with IRT during
Summer 2003 • public presentation and first "on air" trials
by BR and WDR during IFA Berlin 2003
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 9
Radio ProductionMultichannel-Radio at ARD
5.1-Transmissions for test purposes
• Sep. 2003 - Sep. 2005:public transmission of test programs:
• WDR: 1h-Loop with demo-samples of own productions, music and drama for nearly 24h a day
• BR: 2h-simulcast-transmission in BR4 Klassikevery two weeks during nighttime
• Possibility for testing of transmission and receiving equipment
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 10
Radio ProductionMultichannel-Radio at ARD
Transmission Standard• ASTRA 1H • DVB - S:
Digital Video Broadcast (Satellite)• audio coding:
Dolby-Digital 5.1, "AC-3" data rate: 448 kBit/s
• simulcast: AC-3 - Data stream together with main stereo radio transmission
• configured as Radio service
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 11
Radio ProductionMultichannel-Radio at ARD
• minimal additional costsfor continuity and transmission
• Availability of transponder-capacity
• Using existing transmission technologyand networks
• The market is opened by home-cinema accompanied by high quality 5.1-audio media like SACD and DVD-A
Conditions and advantages
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 12
Radio ProductionMultichannel-Radio at ARD
Receivers• Customary Receivers
for Digital TV via Satellite"Set-Top-Box“
• Already widely spread in the market: about 5 Mio. in Germany
• a great part uses already Radio Services via DVB-S
• Simple connection to 5.1-audio-devices via S/P-DIF or Toslink
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 13
Radio ProductionMultichannel-Radio at ARD
Results of the tests:
• Behavior of different types of DVB-Receivers is various
• special problems with 5.1-Signal when configured as radio-service "d-Box 2-Problem"
• Great problems with dynamic configuration changes
• Drop-Outs
• positive reactions from listeners
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 14
Radio ProductionMultichannel-Radio at ARD
Playout for test program
Multichannel-Project
or AC-3-FileADAT
AES/EBU
Stereo
Dolby DP 5695.1-Encoder
AC-3
Surround(AC-3)
5.1 + 2.0
AC-3 auto-detection
Modus
DCF77Timer
Setup2.0 / 5.0 / 5.1
384 / 448 kBit/s
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 15
Radio ProductionMultichannel-Radio at ARD
ARD-Radio Transponder
• ASTRA 1H, 19,2° east• Transponder #93 • 12,266 GHz• horizontal Polarization• FEC 3 / 4• Symbol rate: 27,500 MS/s
MilestoneSeptember 1st, 2005:
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 16
Radio ProductionMultichannel-Radio at ARD
ARD-Radio Transponder
• Nearly the complete range of german public radio concentrated on one transponder
• High Quality Radio: for stationary purposes transmission quality should correspond to high quality content:⇒ 320 kBit/s for stereo service !
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 17
Radio ProductionMultichannel-Radio at ARD
European - wide coverage
ASTRA 1H -Footprint
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 18
Radio ProductionMultichannel-Radio at ARD
Regular service for Multichannel Radio
• five 5.1-Channels reserved for ARD-Broadcasters• at present 3 German public broadcasters
offer regular 5.1-Multichannel-Service
• simulcast to main programsadditionally to MPEG Stereo with identical content
• from time to time: only certain programs with a existing separate 5.1-Mix
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 19
Radio ProductionMultichannel-Radio at ARD
Distribution and Uplink• Multipexing and Uplink of ARD-Transponder
is operated by WDR in Langenberg near Essen / NRW
• Contribution of all programs via Hybnet / E1• New unique pre-multiplexer
had to be developed and installed in the individual ARD-Radio-Stations
Q-Bit DAE
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 20
Radio ProductionMultichannel-Radio at ARD
Premultiplex (doubled for spare)
Stereo-Programm 1
Stereo-Programm n
AES-3
ASI / E1-Converter
E1
ASI
ASI
2 x E1
AES-3
AC-3Encoder
5.1-ProgrammAES-3
Encoder/ Premultiplexer
MPEG-Encoder
AC-3Modul
MPEG-Encoder
ΣMUX
SI- Data
Ancillary data
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 21
Radio ProductionMultichannel-Radio at ARD
DVB-Playout-Center / Uplink
E1-Multiplex-
Signal
E1
ASI
DVB-Multiplexer
. . .. . .
TV Radio
DVB UplinkLangenberg
ARD-Broadcaster
ARD -HybNet/RegioNet
DVB-Playout-Center Langenberg
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 22
Radio ProductionMultichannel-Radio at ARD
Multichannel in Radio-Continuity
Simulcast (Stereo und 5.1) means:• At the same time two separate program-signals
have to be controlled by the operators• Priority definition is necessary for the two paths
concerning level-metering and sound-monitoring• Low disturbance of normal operation
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 23
Radio ProductionMultichannel-Radio at ARD
Multichannel in Radio-Continuity - Hardware
• 5.1- Mixing / Crossfade of Stereo and Surround-Program• Playback of own multichannel productions• Playback of multichannel records (SACD etc.)
No playback of stereo and multichannel layer simultaneously !• 8-channel playback system :
Audio-Workstation with 8-channel audio - interfacefilebased sequential control of playout using multichannel-audio-fileformat RF64 in preparationIn the meantime: own productions to optical media (DVD-A)(SACD: self-burning is not possible)DTRS-Tapes (DA98), handling too complex
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 24
Radio ProductionMultichannel-Radio at ARD
Presentation-Studio
Stereo
Multichannel-Player
5.1
5.1 -Audio- Player
Stereopaths, FM etc.
External ( live- ) 5.1 - Sources
...Stereo-
Continuity
5.1-Multichannel
additionalDSP Dolby-
Digital-Encoder
Mon
itorin
g
AC-3
DVB -
Pre-Multiplexer
Upmix Downmix
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 25
Radio ProductionMultichannel-Radio at ARD
Contribution
• Extension of contribution network to 8 channels
• in house contribution by additional 3 x AES3 lines
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 26
Radio ProductionMultichannel-Radio at ARD
Allocation of 5.1-channel
• BR:fixed allocation of multichannel capacityto one program: BR 4 Klassik
5.1 - Surround - Channel
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 27
Radio ProductionMultichannel-Radio at ARD
allocation of 5.1-channel
• WDR, SWR:dynamic allocation of multichannel capacityto more than one program:→ additional switching of 5.1-audio → switching of Multiplexer Setting and Data via presets
5.1 - Surround - Channel
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 28
Radio ProductionMultichannel-Radio at ARD
Live-Transmission in 5.1 Surround
First regular live transmission in German radio:
September 09, 2005WDR Symphonic Orchestra, Semyon BychkovSibelius, SchostakovitschPhilharmonic Hall Cologne
October 07, 2005Symphonic Orchestra of BRHerkulessaal and Philharmonie Gasteig
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 29
Radio ProductionMultichannel-Radio at ARD
Live-TransmissionPhilharmonic Hall Cologne
WDR Funkhaus
WDR-Studio Combimux
ATM-Switch
direct microwave link
Central Switcher Combimux ATM-
SwitchContinuity
AC-3
AC-3
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 30
Radio ProductionMultichannel-Radio at ARD
Rebroadcasting
• relay from rbb
• long distance transmission
• new technologies APT (E1, IP) / Mayah (IP)
• Prix Europa Opening ConcertOctober 15th, 2005
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 31
Radio ProductionMultichannel-Radio at ARD
Rebroadcasting
Potsdam
Cologne
Audio-MatrixContinuity
OB-VanUniPotsdam
ARD -HybNet/RegioNet
E1
WNO-Codec
WNOCodec
3 x stereo, 576kBit/sphase-locked
bidirectionalE1; 2 MBit/s
G.704
sync
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 32
Radio ProductionMultichannel-Radio at ARD
allocation of 5.1-channel to two programs via PID:
5.1 - Surround - Channel
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 33
Radio ProductionMultichannel-Radio at ARD
Additional data
• ZI-Information(present/following)
• EPG • RDS / RDSplus
classification
Title / Artist / etc.
• MHP
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 34
Radio ProductionMultichannel-Radio at ARD
Technical problems to be solved
• Drop Outs→ development of external sync input
for pre-multiplexer (next 3 weeks)
• LFE level definition (lin / -10dB)
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 35
Radio ProductionMultichannel-Radio at ARD
+10dB
-10 dB
Dolby-AC3Encoder
Dolby-AC3Decoder
+/- 0dB +10dB
-10 dB -10 dB 0 dB
LFE-Adjustment
LFE
L
C
R
SL
SR
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 36
Radio ProductionMultichannel-Radio at ARD
+10dBLFE
L
C
R
SL
SR
-10 dB -10 dB -10 dB -10 dB
SACD DVD-A
Mastering
+/- 0dB
SACD DVD-A
Playback
+/- 0dB
LFE-Adjustment
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 37
Radio ProductionMultichannel-Radio at ARD
-10dB
0 dB
Dolby-AC3Encoder
Dolby-AC3Decoder
+/- 0dB +10dB
-10 dB -10 dB 0 dBSACD DVD-A
Mastering
+/- 0dB
SACD DVD-A
Playback
+/- 0dB
0 dB 0 dB 0 dB
LFE-Adjustment
LFE
L
C
R
SL
SRStandardizationof LFE-level for
archiving and fileformat
(RF64) !
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 38
Radio ProductionMultichannel-Radio at ARD
Results:
• most of the work on the technical side is done
• what we still need is to give a lot of informationabout the system and the new possibilities→ to receiver manufacturers→ to program-managers and producers→ to our listeners
• industrial 5.1-productionsfor creating attractive program content in addition to our own productions
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 39
Radio ProductionMultichannel-Radio at ARD
"Stand alone" DVB-S - receivers for radio audio only operation are not yet available:- easy to use - without separate display
→ 2 meetings with manufacturers of DVB-S-Equipment
→ B/MCAT - Paper: guidelines for multichannel-audio-receivers(December 2005)
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 40
Radio ProductionMultichannel-Radio at ARD
Internal workshops
WDR -Workshop together with SRT for technical staff and programm editors
June 29th / 30th 2005
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 41
Radio ProductionMultichannel-Radio at ARD
Presentation at IFA 2005
Technisch-Wissenschaftliches Forum (TWF)• DVB-S Radio is one of the main presentation
topics of ARD in this year• Multichannel-demonstrations
with a high-quality consumer Equipment• 3 demonstration-programs
WDR / SWR / BR "On Air" during the fair (until September 19, 2005)
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 42
Radio ProductionMultichannel-Radio at ARD
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 43
Radio ProductionMultichannel-Radio at ARD
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 44
Radio ProductionMultichannel-Radio at ARD
VDT Symposium 31.10.-02.11.2005 Schloss HohenkammerJürgen Marchlewitz Folie 45
Radio ProductionMultichannel-Radio at ARD
Infos about coming 5.1-programs:
www.radio.ARD.dewww.ard-digital.de
www.wdr.radio.dewww.br-online.de/Bayern4/programmwww.swr.de