<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #6666CC'>Hi,<br> I integrated the speex aec 1.2rc1 into android audio subsystem. Aec is working fine.<br>But in the case of multiple microphones(2) and multiple speakers (2) case, it is not working properly.<br>I think speex_preprocess_run() is not implemented for multiple speakers and multiple microphones. <br>And speex_echo_cancellation() function also not fully implemented for mutiple channels.<br><br> Can you please help me on this.<br><br>Regards<br>Ramesh<br></div></body></html>