[Speex-dev] Will the echo canceler or preprocessor work with 10ms frames?

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Thu Jun 15 15:59:40 PDT 2006

> The preprocessor works for AGC (I have discovered my enviroment is too 
> noisy for AGC, as the background it way too loud during periods of 
> silence even with a noise canceling mic), but the denoiser seems to make 
> the sound tinny and distorted at times. 

That's a side effect of it for now.

> The echo canceler doesn't seem to work at all.  What is the longest I 
> can set the filter length to and still have it adapt in a reasonable 
> time frame?  I am using 80 sample frames and a filter length of 800 
> samples right now.

10 ms should work, but you could try with 20 ms. Try testecho to make
sure it's not your code. Also, please read the echo canceller section of
the manual (the one in the tarball, not the website).


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