Hello, I'm doing the similiar thing-- trying echo cancellation function on my Pocket PC based VoIP application. It doesn't work either for me so far. I even tried it on the WIN32 version (online and offline), there was still not audible difference. Xu
> I'm doing the similiar thing-- trying echo cancellation function on my > Pocket PC based VoIP application. It doesn't work either for me so > far. I even tried it on the WIN32 version (online and offline), there > was still not audible difference.The performance of the echo canceller is dictated by how the recording is performed (even more important than the EC algorithm itself). See the manual for more details. Jean-Marc