[Speex-dev] Little question about the article "on Adjusting..."

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Mon Sep 25 04:13:02 PDT 2006

> I understood that AEC with Gansler or cross-correlation algorithms have a
> learning rate of 0.2 (in your experiment) or 0 if a double-talk is
> detected.
> But, in the figure 4, where you have plot the learning rate function of
> the time, I can see that in the first 2 seconds, cross-correlation
> algorithm's learning rate is about 0.22... How can it be possible ? Is it
> just a measurement problem ?

I just checked with my code and the cross-correlation algorithm actually
used a learning rate of 0.25, not 0.2 (the Gansler algo was 0.2 though).
Thanks for pointing that out. I'll try to fix it before the article
shows up in IEEE Trans.


More information about the Speex-dev mailing list