<div>hi,<BR>i have a aec question:whether the speex-1.2beta3 can canceller 16khz 320 samples voice?</div> <div>example:<BR>st = speex_echo_state_init(320, 320*100);<BR>den = speex_preprocess_state_init(320, 16000);</div> <div>i run the code and get three files :rec_file.sw, play_file.sw, out_file.sw.<BR>than i diagnostic the result use the tool (echo_diagnostic.m) <BR>with parament:tail_length=320*100;</div> <div>but get the result is:<BR>"Far end to near end delay is 75212 samples."<BR>"This is too much delay, try delaying the far-end signal a bit."<BR>or "You have a negative delay, the echo canceller has no chance to cancel anything!"</div> <div>i can't get "Delay looks OK." </div> <div>somebody help me.</div> <div>thanks.</div><p> 
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