[speex-dev] speex preprocess redux

Tom Harper tharper at sightspeed.com
Tue May 18 23:26:45 PDT 2004


So I was actually able to get rid of the clipping problem by tweaking the 
probability lower.  The second number didn't seem to have as much of an effect,
but I have to do a bit more testing in more environments.

Thanks for your help!


At 06:37 AM 5/18/2004, Steve Kann wrote:
>I don't seem to get that;  I suppose you've already changed the thresholds 
>to make things more sensitive though:
>This is what I have now in iaxclient; the first number is the "initial" 
>probability to go from not speech -> speech.  The second is to go from 
>speech -> not speech.  [the difference implements hysteresis].
>/*      if (st->speech_prob> .35 || (st->last_speech < 20 && 
>st->speech_prob>.1)) */
>      if (st->speech_prob> .30 || (st->last_speech < 20 && 
> st->speech_prob>.07))

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