[speex-dev] replacing ACELP encoding with speex

Jean-Marc Valin jean-marc.valin at hermes.usherb.ca
Fri Jun 6 11:09:46 PDT 2003

> rawrec -d /dev/dsp -t $1 -s 16000 | speexenc -w --vbr --stereo - $2-$DATE.spx
> I'm looking for some recomendations on getting down near or below 16meg
> file size and maintaining the current 16k feed.

Well you just have to add a --quality N (N defaults to 8 in your case).
Or you may want to try --abr 16000, which tries to adjust VBR quality in
real-time to get 16 kbps. Last thing, are you sure you want to encode in
stereo. Most of the time for speech it doesn't add much.


Jean-Marc Valin, M.Sc.A.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada

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