[vorbis] Why 64kbps is important

[Kristoff Bonne]

Greetings,

On Mon, 6 Aug 2001, Michael Paine wrote:
> Everyone needs to remember the purpose to 64kbps audio -- VoIP.
> The current standard for G.711 is 64kbps, and once Docsys 1.1 become reality
> this time next year, the VoIP industry will start looking for the next
> generation audio codec for the cable softphone industry.
I don't see your point.
There are already several 'voice-grade' codecs available. (like the
GSM-codec running at 13 Kbps)

For normal telephony-applications, there is no need for anything above 3.4
Khz audio (OK, it would be nice, but people just want to talk to
eachother; and 3.4 Khz will do just fine for that).
VoIP 'like' IP NOT because of the fact that is can compress audio (it can
do this over 'normal' point-to-point lines too); but for the 'any to any'
connectivity provided by the IP-layer.
So, going from (say) a 13 Kbps codec (like the GSM-codec) to a (say) a 10
Kbps or a 32 Kbps codec (providing better quality) will is NOT the main
interest for the VoIP-business.

> This is why MP3Pro and WMA are fighting it out for the 64kbps industry.  Did
> anyone on this newsgroup know that?

IMHO, 64 Kbps would be much more important in low-speed broadcasting (like
the L-band satellite-radio system worldspace http://www.worldspace.com/);
or as a competing codec to AAC+SBR used by DRM (digital radio over short,
medium and long-wave; check out http://www.drm.org/).

Cheerio! Kr. Bonne.

-- 
KB905-RIPE                                       Belgacom  IP networking
(c=be,a=rtt,p=belgacomgroup,s=Bonne,g=Kristoff)  Internet, IP and IP/VPN
kristoff.bonne at skypro.be                         Faxbox :  +32 2 2435122

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