Hello! I hope this Email is still available.
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.
I have read the manual and the api reference, but still have some problems
about the usage.
1. about function speex_echo_cancellation(echo_state, input_frame, echo_frame,
output_frame);
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?
2. about testecho
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?
I have searched through the manual and reference, and still suffer from the
above problems. Please tell me the answers. Thank you very much!
Best wished!
2009-05-26
athertonmen
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