Three Things You Likely Don't Know About HDVoice

Past, Present & Future

What Is HDVoice?

Telephony delivering audio performance beyond the

legacy PSTN

Early Evolution Of The Telephone

1876 1937

Evolution Of Telephony 1937+

1937 2000

HDVoice In Context

HUMAN HEARING = 20 – 20,000 Hz

HUMAN VOICE = 80 – 14,000 Hz

PSTN = 300 – 3,400 Hz

20 Hz 100 Hz 1 KHz 10 KHz 20 KHz

HDVoice = 100 – >7,000 Hz

HDVoice: A Visual Analogy

40% of original pixel count

HDVoice: A Visual Analogy

80% of original pixel count

Hearing For Yourself

Narrowband

G.711

Wideband

G.722

Super-Wideband

G.722.1C

HDVoice Reduces Workload

• Reduced cognitive burden

• 90% fewer ambiguities• Increases overall

comprehension• Reduces listener

fatigue

HDVoice: What’s Required?

• Agreement upon a set of HD audio codecs• HDVoice capable equipment

– CPE & end-points– Core equipment & services

• Assured IP transit for HDVoice traffic– IP-based peering of traffic

Audio Codecs: Then & Now

Narrowband• G.711 = 64 kbps• G.729 = 8 kbps• AMR = 5-12 kbps

Wideband• G.722 = 64 kbps• G.722.2 = 12-24 kbps

(AMR-WB)

Products & Services

End-User Connectivity

• IP-based transit is key to staying in HDVoice

• Easily supported HDVoice for hosted solutions

• SMB with IP-PBX can enjoy HDVoice via SIP trunks

Carrier Peering Via IP

• IP-based peering is key to staying in HDVoice

• Major CableCo’s rumored to already be peering via IP for cost savings

• Voxbone• Incl. peering to Skype

• XConnect HD peering• transcodes G.722 -

G.722.2

HDVoice Is Already Here!

HDVoice Opens New Doors!

• Manhattan School Of Music leverages HDVoice to offer distance learning & real-time collaboration between far-off locations.

Oh, The Things You’ll Do!

Business traveler• HDVoice calls to

home are longer & less tiring

Oh, The Things You’ll Do!

Radio stations• Can hold phone-in

shows without sacrificing audio quality

• It won’t help talk radio, which will remain a wasteland

Oh, The Things You’ll Do!

Restaurants• Order for delivery

without phonetically spelling out your address

Oh, The Things You’ll Do!

At The Drive Through• Hear & be heard

clearly at a drive through

HDVoice Online Resources

• http://www.HDVoiceNews.com

• http://www.polycom.com/company/about_us/technology/ultimatehd/hdvoice.html

• http://www.audiocodes.com/solutions/hdvoip

• http://www.ti.com/corp/docs/landing/visionforvoice/multimedia.html

• http://www.qualcomm.com/media/blog/2012/05/17/hd-voice-hear-me-loud-and-clear

• http://www.spiritdsp.com/promo/hd-sound/

• http://www.dspg.com/english/Article.aspx?Item=764

• http://blog.cat-iq.org/category/hd-voice-2/

• http://www.mgraves.org