[vorbis] quality settings

[Geoff Shang]

On Fri, 4 Jan 2002, jaromil wrote:

> do you mean there will be no point in streaming with VBR for low
> bandwidth? does it makes/it will make sense to specify VBR of 24Kbit
> with a max of 32Kbit or internet radios should simply use managed
> bitrates?

In a message posted to vorbis-dev the other day, Monty said that RC3 does
not support -q and -M together, but RC4 will.  He also said that RC4 will
cope better with lower bitrates than RC3 currently does.  And this is a
good thing.  Try doing 44.1khz stereo at 64kbps or lower. Particularly try
using -M 64 rather than B.  Pretty nasty.  Apparently that's handled much
more gracefully in RC4 and Monty already has demos of what it can do.
This, together with proper quality modes for lower sampling rates should
turn vorbis into a pretty lean and mean streaming codec.

Geoff.

<p><p><p>--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'vorbis-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.