[Speex-dev] About echo CPU consuption

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Tue Oct 11 18:12:37 PDT 2005

The echo cancellation should take that much CPU. Maybe the echo tail
(filter length) you're using is too large? Try with 160-sample frame
size and 800-sample filter length.


Le mardi 11 octobre 2005 à 14:05 +0200, Roberto Della Pasqua a écrit :
> Hi,
> Jean, thanks for your source code example.
> I like ask info about cpu consuption, in our example enabling echo removing
> cause the sound poppling with a celeron 1.7Ghz (taskman show cpu full,
> without echo is at 30%).
> Does exist a mode to lower the cpu consuption in echo removing? Because a
> large part of users base own still "old" CPU of 6-7 generation, as from
> 500-700 Mhz and lower too.
> Perhaps the code need be optimized? Or can be possible adapt the echo
> removal upon consume a max cpu bound?
> Again yours,
> Roberto 
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