[Speex-dev] Echo Cancellation for silent echo signal

[Yong Chen]

Hi Jean-Marc,
    I am developing a voice chat for win32 using speex,when I do echo cancellation, after 2 seconds adaptation,
the echo canceller work very well,but after process silent(zero) echo signal(when enabled VAD,DTX),it work very bad,I 
have to reset it, it seems adapt faster then do not rest it, so I always here echo produce by my fisrt two second
speech,how can I solve this problem? thank you ver much.
                   Best regards

            Yong Chen
            admin at seeyoucn.com