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<DIV><FONT face=Verdana size=2>Hello! </FONT>I hope this Email is still
available.</DIV>
<DIV> </DIV>
<DIV> My goal is to cancel the echo caused by the
client's mic and speaker through the Internet, which is also the aim
of Speex.</DIV>
<DIV> I have read the manual and the api reference, but still
have some problems about the usage.</DIV>
<DIV> </DIV>
<DIV>1. about function
speex_echo_cancellation(echo_state, input_frame, echo_frame, output_frame);</DIV>
<DIV> Parameters (input_frame, echo_frame and output_frame)
refer to what kind of audio data? The format should be wav, mp3 or some other
compression or uncompression formats?</DIV>
<DIV> </DIV>
<DIV>2. about testecho</DIV>
<DIV> There is a project called TestEcho. I suppose
it's an example to show the users how to execute the echo cancellation. The
testecho.exe has four command-line parameters, and three of them are .sw file.
What is .sw file? Is it wav, mp3 or some other formats?</DIV>
<DIV> </DIV>
<DIV> I have searched through the manual and reference, and
still suffer from the above problems. Please tell me the answers. Thank you very
much!</DIV>
<DIV> </DIV>
<DIV>Best wished!</DIV>
<DIV> </DIV>
<DIV align=left><FONT face=Verdana color=#c0c0c0 size=2>2009-05-26
</FONT></DIV><FONT face=Verdana size=2>
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<DIV><FONT face=Verdana color=#c0c0c0
size=2><SPAN>athertonmen</SPAN></FONT></DIV></FONT></BODY></HTML>