search for: _incoming_side_

...r the audio, much like the transcoding times of GSM vs Speex (2ms vs ~30ms). I can only think of a few possible reasons the echo cancellation code may not work as expected: - A echo signal too complex for the style of filter - Continuous variations in the 'length' of the echo tail on the _incoming_side_ of the T1 causing the filters to continuously adapt (perhaps caused by 'slips' in the interface/timing system onboard the card?) - Coding errors in the MMX vs. non-MMX routines - Fundemental differences between the audio signals being passed to the customers depending on the service provi...