[vorbis] nominal bitrates

Michael Smith msmith at labyrinth.net.au
Sun Jul 28 06:54:53 PDT 2002



At 12:08 PM 7/27/02 +1000, you wrote:
>I just tested some music at 8kbps, with oggenc -q -1 --downmix --resample 
>8000, and I must say, even though it was obviously lacking in quality, it 
>wasn't completely unbearable as I was expecting it might be. Speech was 
>clearly recognisable, all the instruments were there. Does anyone know of a 
>cross platform (specifically windows and linux) voice telephony program using 
>ogg? I'm thinking about writing a quick and dirty utility to just pipe ogg 
>out over to another person for voice telephony, because even at 8kbps voice 
>seems to be well represented (this would save me heaps on long distance!!!).

On the surface ogg vorbis might seem ok for voice telephony. Further 
investigation shows that there are two critical problems with this:
the ogg layer, and the current encoder. Both of them introduce FAR
too much latency for telephony applications.

Michael

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