Have background in the noise conditions, for voice activity detection and achiev...

CCITT G.711,G.721,G.723语音压缩算法 -CCITT G.711, G.72 3 voice compression algorithm

采用MELP编制的压缩与解码程序，在MATLAB环境下可直接运行，语音2.4kb/s-MELP (Mixed-Excitation Linear Predictive) Vocoder is a new 2400 bps Federal standard speech coder. This Matlab code of MELP can run directly in MATLAB condition.

不定长信号合并，％执行信号相加： y(n) = x1(n)+x2(n) ％调用方式：[y,n] = sigadd(x1,n1,x2,n2) ％ y：叠加后的信号序列的序列号，包括n1和n2 ％ x1： 第一个信号序列，序列号为n1 ％ x2：第二个信号序列，序列号为n2(n2可以与n1不同)-Indefinite long-Signal merger, add up to the implementation of signal: y (n) = x1 (n)+ X2 (n) call the way: [y, n] = sigadd (x1, n1, x2, n2) y: Superposition signal sequence after the serial number, including the n1 and n2 x1: the first signal sequence, the serial number for n1 x2: the second signal sequence, the serial number for n2 (n2 with n1 different)

符合G。729A标准的语音压缩源代码， 很经典，未经过优化含有错误，请修改后使用，-with G. 729A standard voice compression source code, classic, not optimized to contain errors, please use the revised,

简单的基于门限值的语音端点检测。先将数字化的语音信号封装成帧，利用最大的帧幅值乘以一个比例因子得到门限值-Simple threshold-based voice end point detection. First，framing the digital voice signal , then using the maximum amplitude to multiply a frame scale factor to get threshold

声音信号的短时能量matlab实现程序源码-Audio signal to achieve short-term energy program source code matlab

g.729算法在vc++6.0环境下调试通过的.exe工程文件。-g.729 algorithm vc++6.0 environment debug adopted. exe project file.

这是关于盲信号源分离技术的经典文章，主要用于盲信号源的分离。-This is a blind signal source separation on the classic technical articles, mainly used for blind source separation.

语音信号的清浊音的提取是研究语音信号的一个必经的过程，如何提取清浊音也是很多初学者面临的问题-Detecting the voice and unvoice is a primily process to study speech signal.How to detect it is also the big problem to the most learner.

julius是日本京都大学和一家日本公司开发的大词汇量语音识别引擎。 最新版为4.0.2-julius is Japan