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2010 Feb 22
0
Speex echo cancellation and denoise issues
...nt humming sound is heard. I open the recorded file in Cool edit pro tool and see that all the spikes are removed and flat wave is there. What could be the reason for this behavior? 2. Echo cancellation: I have two separte threads, one to capture live audio and another one to playback the audio recvevied on the network. Since audio capture and playback are handled asynchronously I call the function speex_echo_playback right after I enqueue a buffer for sound card to play and call the function speex_echo_capture for every packet captured before I call speex_encode_int for encoding. As soon as the au...