search for: exho

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2010 Feb 19
0
Echo cancellation ot working
...origin test application. This leads me to conclusion that echo was not cancelled by echo canceller but it was just removed as a noise. Well my question is why my echo cancellation does not work? 1. does speex echo canceller support PCM 16 audio or must I use the speex codec? 2. I read that speex exho cancellation works better when frames are squares of 2. Can this be the problem that I use 160 samples in frame? 3 stream without echo and stream with echo are on different volume level becaouse the mics on the teephnes are not same. Can the different volume level of audio streams has bad influence...