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? hi all, i am using the Acoustic Echo Cancellation from "Speex 1.1.12 version" in my VOIP application. Is it that the frame length to be chosen should always be 20ms or can i have flexibility in chosing the frame lenght? on what parameters does the frame length choise depends? thank you all, Shri. -------------- next part -------------- An HTML attachment was scrubbed... URL:

...anceler state: SpeexEchoState * echo_state = speex_echo_state_init(FRAME_SIZE, FRAME_SIZE * 5); FRAME_SIZE is in my project 160 samples. I have 8000ksaples/s, so I must call echo canceler every 20ms. and later in the loop I call it: speex_echo_cancel(echo_state, (short *)Samples, (short *)SamplesSpeaker, (short *)SamplesOut, NULL); I give as the parameters to the function the data from tables now. The problem is when I call speex_echo_cancel it does not return. It goes into infinite loop somewhere. I test now on the simulator. What can cause the infinite looping ? Please help.