[speex-dev] speex preprocess redux

Tom Harper tharper at sightspeed.com
Mon May 17 15:03:32 PDT 2004

Hi All & Jean Marc,

Once again I find myself delving into the pre-processing code to fiddle
with the VAD, AGC and denoising code.

Where i am at is that I have implemented all of Steve Kann's mods, and
they are 90% of the way there in terms of working, except that I am still
having issues denoising open air mics.  But that is tangential to my question-

I was wondering what the following function is supposed to be used for:

I couldn't find anywhere in the code that references it- it appears to update
the noise estimate without denoising anything- ?  If so, does this need to
be called for AGC to work, or?


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