speex echo cancellation in the open-source program, you can run the simulation program directly echo cancellation for echo on VOIP in the elimination of the input and reference signals are 16-bit PCM code

echo\2_MicIn.raw
....\3_SpeakerOut.raw
....\AEC.dsp
....\AEC.dsw
....\AEC.ncb
....\AEC.opt
....\AEC.plg
....\arch.h
....\config.h
....\Debug\AEC.bsc
....\.....\AEC.exe
....\.....\AEC.ilk
....\.....\AEC.pch
....\.....\AEC.pdb
....\.....\de_file.obj
....\.....\de_file.sbr
....\.....\echo_cancel.obj
....\.....\echo_cancel.sbr
....\.....\fftwrap.obj
....\.....\fftwrap.sbr
....\.....\filterbank.obj
....\.....\filterbank.sbr
....\.....\main.obj
....\.....\main.sbr
....\.....\mdf.obj
....\.....\mdf.sbr
....\.....\preprocess.obj
....\.....\preprocess.sbr
....\.....\smallft.obj
....\.....\smallft.sbr
....\.....\vc60.idb
....\.....\vc60.pdb
....\de_file.c
....\de_file.h
....\echo_cancel.c
....\echo_cancel.h
....\fftwrap.c
....\fftwrap.h
....\filterbank.c
....\filterbank.h
....\howling.raw
....\HW.pk
....\HW.raw
....\main.c
....\math_approx.h
....\mdf.c
....\mic.pk
....\mic.raw
....\os_support.h
....\preprocess.c
....\pseudofloat.h
....\Readme.txt
....\ref.raw
....\reff.pk
....\reff.raw
....\result.pk
....\result.raw
....\result1.pk
....\result1.raw
....\smallft.c
....\smallft.h
....\speex_echo.h
....\speex_preprocess.h
....\speex_types.h
....\stdafx.h
....\targetver.h
....\Debug
echo

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