File list (Check if you may need any files):
Echo_Cancellation
.................\200712102.pdf
.................\A200911-1134.pdf
.................\AEC - 回声消除.pdf
.................\aec_micphone.mp3
.................\aec_result.mp3
.................\Asterisk echo cancellation.pdf
.................\Causes of echo.pdf
.................\Chapter20-Echo_Cancellation.pdf
.................\CONATUS_CPVE_30分钟演示版_.rar
.................\CONATUS_CPVE_DEMO.exe
.................\CONATUS声学回声消除算法说明书_cn.pdf
.................\CRASH.mp3
.................\CRASH_ADSP.mp3
.................\CT2901语音处理芯片概述.pdf
.................\Echo Basics Tutorial.pdf
.................\Echo Cancellation Demystified.pdf
.................\Echo_cancellation.pdf
.................\m11909.pdf
.................\speex-1.2rc1
.................\speex-1.2rc1.tar.gz
.................\............\acinclude.m4
.................\............\aclocal.m4
.................\............\AUTHORS
.................\............\ChangeLog
.................\............\config.guess
.................\............\config.h.in
.................\............\config.sub
.................\............\configure
.................\............\configure.ac
.................\............\COPYING
.................\............\depcomp
.................\............\doc
.................\............\...\Makefile.am
.................\............\...\Makefile.in
.................\............\...\manual.pdf
.................\............\include
.................\............\.......\Makefile.am
.................\............\.......\Makefile.in
.................\............\.......\speex
.................\............\.......\.....\Makefile.am
.................\............\.......\.....\Makefile.in
.................\............\.......\.....\speex.h
.................\............\.......\.....\speex_bits.h
.................\............\.......\.....\speex_buffer.h
.................\............\.......\.....\speex_callbacks.h
.................\............\.......\.....\speex_config_types.h.in
.................\............\.......\.....\speex_echo.h
.................\............\.......\.....\speex_header.h
.................\............\.......\.....\speex_jitter.h
.................\............\.......\.....\speex_preprocess.h
.................\............\.......\.....\speex_resampler.h
.................\............\.......\.....\speex_stereo.h
.................\............\.......\.....\speex_types.h
.................\............\INSTALL
.................\............\install-sh
.................\............\libspeex
.................\............\........\arch.h
.................\............\........\bits.c
.................\............\........\buffer.c
.................\............\........\cb_search.c
.................\............\........\cb_search.h
.................\............\........\cb_search_arm4.h
.................\............\........\cb_search_bfin.h
.................\............\........\cb_search_sse.h
.................\............\........\echo_diagnostic.m
.................\............\........\exc_10_16_table.c
.................\............\........\exc_10_32_table.c
.................\............\........\exc_20_32_table.c
.................\............\........\exc_5_256_table.c
.................\............\........\exc_5_64_table.c
.................\............\........\exc_8_128_table.c
.................\............\........\fftwrap.c
.................\............\........\fftwrap.h
.................\............\........\filterbank.c
.................\............\........\filterbank.h
.................\............\........\filters.c
.................\............\........\filters.h
.................\............\........\filters_arm4.h
.................\............\........\filters_bfin.h
.................\............\........\filters_sse.h
.................\............\........\fixed_arm4.h
.................\............\........\fixed_arm5e.h
.................\............\........\fixed_bfin.h
.................\............\........\fixed_debug.h