Speex dev - Feb 2006 - Dereverberation - is it work?

Hello,
I'm using Speex1.1.11.1 source code.
I enabled dereverb by speex_preprocess_ctl(). I try different dereverb_level and
dereverb_decay values and it seems to not work. I generate some test files in
CoolEdit using reverb or echo and then preprocess it by
speex_preprocess(preprocess, input, NULL); and output is the same as input:(.
Denoising and VAD works very good. I tried dereverb with and without denoise
or/and VAD.
Are there some sound files to test dereverb algorithm? I'll be very grateful
for help.

W.Chojnowski
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Dereverberation is very, very experimental. You need to tweak the
parameters (level and decay) for each environment. Your mileage may (and
will) vary.

	Jean-Marc

Le mardi 28 f?vrier 2006 ? 11:13 +0100, chojny a ?crit :
> Hello,
> I'm using Speex1.1.11.1 source code.
> I enabled dereverb by speex_preprocess_ctl(). I try different
> dereverb_level and dereverb_decay values and it seems to not work. I
> generate some test files in CoolEdit using reverb or echo and
> then preprocess it by speex_preprocess(preprocess, input, NULL); and
> output is the same as input:(.
> Denoising and VAD works very good. I tried dereverb with and without
> denoise or/and VAD.
> Are there some sound files to test dereverb algorithm? I'll be very
> grateful for help.
>  
> W.Chojnowski
> ------------------------------------------------------------ 
> Taaaaaaakie auto! >>> http://link.interia.pl/f1910
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