[Speex-dev] Echo cancelling results

Magnus Ekhall koma at lysator.liu.se
Sun Sep 7 11:40:15 PDT 2008


I wanted to play around with the echo canceller so I tried the testecho 

As speaker sound I fed it with a 440 Hz sine wave, and as mic with a 550 
Hz + 440 Hz sine waves sound (but the 440 Hz component half the amplitude).

I kind of expected to get a somewhat clean 550 Hz sine out, but it 
doesn't seem to work that way.

Are there better samples I can use with testecho to see some results 
from the echo canceller?

Or did I do something wrong?


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