文件名称:aec-master
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- 上传时间：2016-05-03
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webrtc 的回声抵消(aec、aecm)算法主要包括以下几个重要模块：1.回声时延估计 2.NLMS(归一化最小均方自适应算法) 3.NLP（非线性滤波） 4.CNG(舒适噪声产生），一般经典aec算法还应包括双端检测(DT)。考虑到webrtc使用的NLMS、NLP和CNG都属于经典算法范畴，故只做简略介绍，本文重点介绍webrtc的回声时延估计算法,这也是webrtc回声抵消算法区别一般算法(如视频会议中的算法)比较有特色的地方。-webrtc echo canceller (aec, aecm) algorithm includes the following important modules: 1 echo delay estimation 2.NLMS (normalized least mean square adaptive algorithm) 3.NLP (nonlinear filtering) 4.CNG ( comfort noise generation), usually classical aec algorithm should also include double end detector (DT). Taking into account the NLMS webrtc use, NLP and CNG belong to the category of classical algorithms, it is only a brief introduction, this article focuses on the echo time delay estimation algorithm webrtc, which is the difference between general webrtc echo cancellation algorithm algorithm (such as video conferencing in the algorithm) compare interesting places.
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下载文件列表
data/.gitignore
data/01_mic_clvl12.raw
data/01_spk_clvl12.raw
data/02_comment.txt
data/02_mic.raw
data/02_spk.raw
data/03_comment.txt
data/03_mic.raw
data/03_spk.raw
data/04_comment.txt
data/04_mic.raw
data/04_spk.raw
data/05_comment.txt
data/05_mic.raw
data/05_spk.raw
data/06_comment.txt
data/06_mic.raw
data/06_spk.raw
data/fft/01_cmsis_dsp_128/comment.txt
data/fft/01_cmsis_dsp_128/fft_in.txt
data/fft/01_cmsis_dsp_128/fft_out.txt
data/out/01_out.raw
sam4s/.gitignore
sam4s/aec.hzp
sam4s/source/aec.cpp
sam4s/source/aec.h
sam4s/source/aec_test.cpp
sam4s/source/fft_in_1001.txt
sam4s/source/fft_in_128.txt
sam4s/source/fft_in_64.txt
sam4s/source/fft_test.cpp
sam4s/source/fft_test.h
sam4s/source/main.cpp
sam4s/source/utils.cpp
sam4s/source/utils.h
sam4s/system/SAM4S_Startup.s
sam4s/system/SAM_Target.js
sam4s/system/system_sam4s.c
sam4s/system/thumb_crt0.s
scilab/aec.sce
scilab/main.sce
scilab/mdf.sce
scilab/plot-fft-cmsis-128.sce
scilab/show-vc-output.sce
scilab/test.sce
scilab/utils.sce
vc/.gitignore
vc/aec/aec.cpp
vc/aec/aec.h
vc/aec/aec.vcxproj
vc/aec/aec.vcxproj.filters
vc/aec/aec.vcxproj.user
vc/aec/main.cpp
vc/aec/stdafx.cpp
vc/aec/stdafx.h
vc/aec/targetver.h
vc/aec.sln
vc/aec.suo
vc/Debug/aec.exe
vc/Debug/aec.ilk
vc/Debug/aec.pdb
data/fft/01_cmsis_dsp_128
data/fft
data/out
sam4s/source
sam4s/system
vc/aec
vc/Debug
data
sam4s
scilab
vc
data/01_mic_clvl12.raw
data/01_spk_clvl12.raw
data/02_comment.txt
data/02_mic.raw
data/02_spk.raw
data/03_comment.txt
data/03_mic.raw
data/03_spk.raw
data/04_comment.txt
data/04_mic.raw
data/04_spk.raw
data/05_comment.txt
data/05_mic.raw
data/05_spk.raw
data/06_comment.txt
data/06_mic.raw
data/06_spk.raw
data/fft/01_cmsis_dsp_128/comment.txt
data/fft/01_cmsis_dsp_128/fft_in.txt
data/fft/01_cmsis_dsp_128/fft_out.txt
data/out/01_out.raw
sam4s/.gitignore
sam4s/aec.hzp
sam4s/source/aec.cpp
sam4s/source/aec.h
sam4s/source/aec_test.cpp
sam4s/source/fft_in_1001.txt
sam4s/source/fft_in_128.txt
sam4s/source/fft_in_64.txt
sam4s/source/fft_test.cpp
sam4s/source/fft_test.h
sam4s/source/main.cpp
sam4s/source/utils.cpp
sam4s/source/utils.h
sam4s/system/SAM4S_Startup.s
sam4s/system/SAM_Target.js
sam4s/system/system_sam4s.c
sam4s/system/thumb_crt0.s
scilab/aec.sce
scilab/main.sce
scilab/mdf.sce
scilab/plot-fft-cmsis-128.sce
scilab/show-vc-output.sce
scilab/test.sce
scilab/utils.sce
vc/.gitignore
vc/aec/aec.cpp
vc/aec/aec.h
vc/aec/aec.vcxproj
vc/aec/aec.vcxproj.filters
vc/aec/aec.vcxproj.user
vc/aec/main.cpp
vc/aec/stdafx.cpp
vc/aec/stdafx.h
vc/aec/targetver.h
vc/aec.sln
vc/aec.suo
vc/Debug/aec.exe
vc/Debug/aec.ilk
vc/Debug/aec.pdb
data/fft/01_cmsis_dsp_128
data/fft
data/out
sam4s/source
sam4s/system
vc/aec
vc/Debug
data
sam4s
scilab
vc
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