Hi, I am using speex lib (libspeexdsp.lib) to implement AEC. I used mmsystem api to open speaker for my application (waveoutopen) then I used callback method to write data on speaker. 1 want to remove echo by using speex lib. Now can you provide me a sample to remove echo . Kindly find the attached file where I am doing this job to remov echo . Regards, Vishal Parmar -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/speex-dev/attachments/20150129/2e62a027/attachment-0001.html> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: WaveOut.cpp URL: <http://lists.xiph.org/pipermail/speex-dev/attachments/20150129/2e62a027/attachment-0001.ksh>