[vorbis] Ogg Voxpop

[Dan Hollis]

On Mon, 12 Feb 2001, Keith Wright wrote:
>  (1) there is not a standard vocoder, there is are half a dozen, at least.

GSM is pretty standard for government use. I think LPC gets some limited
use too.

http://kbs.cs.tu-berlin.de/~jutta/toast.html

>  (2) they are fixed bit rate, we really don't want to waste bits
>      while the teacher waits student to respond

So do silence detection.

>  (3) they include error correction (not needed here because
>      we assume the underlying storage and transport mechanism
>      takes care of that

GSM does not.

>  (4) one might need several different quality/bit rate options
>      For example, both hours of Spanish radio broadcast packed
>      into as small a file as possible, and a high audio quality
>      demonstration of the difference in pronounciation of a "D"
>      in English, Spanish, Chinese, and German, using as much space
>      as needed to make the difference sound clear.

You can overclock GSM if you want.

-Dan

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