[speex-dev] sampling rate

Jean-Marc Valin jean-marc.valin at hermes.usherb.ca
Tue Oct 22 20:44:04 PDT 2002

Le mar 22/10/2002 à 21:29, Ryan dl a écrit :
> It seems to work ok with the same audible quality as a
> standard sampling rate. Is there any way to test this?
> Will superimposing an inverse wave over the origional
> produce a meaningfull result? Thanks for your time,

This would allow you to measure SNR, as long as you compensate the
80-sample delay (223 for wideband) introduced by Speex. However, SNR is
not everything. Speex does not try to optimize SNR but perceptual
quality, so the best thing to do is always to listen to it.


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

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