Description: CELP
The most common Speech coding scheme is Code-Excited Linear Predictive (CELP) coding, which is used for example in the GSM standard. In CELP, the modelling is divided in two stages, a linear predictive stage that models the spectral envelope and code-book based model of the residual of the linear predictive model.
-CELP The most common Speech coding scheme i s Code-Excited Linear Predictive (CELP) codin g, which is used for example in the GSM standard. In CELP, the modeling is divided in two stages. a linear predictive models that stage the spect Cul envelope and code-book based model of the re sidual of the linear predictive model. Platform: |
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Author:梓淳 |
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Description: G729编码和解码的Matlab源程序 调用方法：
1.需要编码时，在 Matlab命令行下输入"G729code(speech)"(请务必保证 speech是已经存在在 Matlab工作区的一个行向量，其中是语音数据)，然后你会在你的文件夹下看到一个"coding.bit"的文件。
2.需要解码时，把"coding.bit"的文件复制到"G729 decoder"的目录下，在Matlab命令行下输入"G729decodermain"，然后你会在文件夹下看到"syn_speech.wav"，那就是重构语音。
enjoy it!
-G729 encoding and decoding of the Matlab source code to call methods: 1. The need for coding at the Matlab command line, enter Platform: |
Size: 107520 |
Author:Jay lee |
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Description: celp code used for speech coding using the matlab software which is used to form speech analysis Platform: |
Size: 11264 |
Author:sarahbaligh |
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Description: linear prediction code is well known for speech coding method. this program use autocorrelation method for computing coefficient.-linear prediction code is well known for speech coding method. this program use autocorrelation method for computing coefficient. Platform: |
Size: 1024 |
Author:hachang |
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Description: Linear-Predictive-Coder
MATLAB Implementation of LPC algorithm for speech signal
# Why LPC?
In communication systems it is often necessary to transmit audio(speech) signal in compressed or encoded form because of bandwidth limitation of the channel. In this regard, ‘Linear predictive coding(LPC)’ is an effctive method of speech coding at a low bit-rate.
# Features
** Analysis/Encoding phase,Synthesis/Decoding phase.
**Human voice modelled with all-pole filter.
** LPC parameters(filter coefficients, pitch, gain etc) extraction at the decoding phase.
** Non-overlapping frames of 30 milliseconds in duration
# How To Run
** Make sure MATLAB(latest version) is installed
** Put both files(LPC.m with .mp3 file) in the same folder
** Open LPC.m file and run it.
## Comments
Different audio (.mp3) files can be coded/decoded by changing the input file name in the code. Platform: |
Size: 2048 |
Author:japaoli |
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Description: 将AMR的12.2k的语音编码的c代码转换为mex文件使其可以被matlab调用，在matlab2014中命令窗输入mex+空格+三个c文件名字（注意encode.c放在最前面）生成可执行文件，就可以调用encode函数。-The AMR 12.2k speech coding in C code conversion for mex file so that it can be called by the MATLAB. In the matlab2014 command window input mex+ space+ three C file name (encode.c on the front) generate executable file, you can call the encode function. Platform: |
Size: 633856 |
Author:高炜委 |
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