The code is extracted from the SPEEX news out of the echo part of the source it is taken to operate in the frequency domain, the effect is better " by the test, if the original voice message and a reference for the echo between the voice of the clock is not synchronized easily occurred in the response message algorithm in the phenomenon of anti-ulcer divergence. compressed package file containing the test voice: Input_exsample_stereo.pcm: 8k16bit linear pcm, including dual-channel voice. vleft.pcm: 8k16bit linear pcm, from Input_exsample_stereo.pcm separate the left channel audio. right.pcm: 8k16bit linear pcm, separated from the Input_exsample_stereo.pcm the right-channel audio.

arch.h
echo.cpp
echo.dsp
echo.dsw
fftwrap.c
fftwrap.h
fixed_generic.h
input_exsample_stereo.pcm
kiss_fft.c
kiss_fft.h
kiss_fftr.c
kiss_fftr.h
left.pcm
math_approx.h
mdf.c
misc.c
misc.h
preprocess.c
pseudofloat.h
ReadMe.txt
right.pcm
smallft.c
smallft.h
speexEC.cpp
speexEC.h
speex_echo.h
speex_preprocess.h
speex_types.h
StdAfx.cpp
StdAfx.h
_kiss_fft_guts.h

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