[vorbis] Why 64kbps is important

Gregory Maxwell greg at linuxpower.cx
Tue Aug 7 03:20:34 PDT 2001



On Mon, Aug 06, 2001 at 10:22:33PM -0700, Michael Paine wrote:
> Did you know:
> 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.
> 
> This is why MP3Pro and WMA are fighting it out for the 64kbps industry.  Did
> anyone on this newsgroup know that?

I find this very hard to believe: Both MP3Pro and WMA (and Vorbis too) have
*way* too much codec delay to be at all suitable for VoIP.

Furthermore, the only reason to use anything other then G.711 (ulawed PCM
audio) at 64kbps would be to offer greater quality then normally offered by
telephones, which really doesn't make much sense when you consider people
are satisfied with the current quality, and if the call passes through any
standard telephone equipment, the added quality will be removed.

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