this is a simple source code

libdca is a free library for decoding DTS Coherent Acoustics streams. The code is written by Gildas Bazin and was based on the a52dec project. It is released under the terms of the GPL license. The DTS Coherent Acoustics standard (ETSI 102 114 v1.2.1), as published by the ETSI, is available here (http://pda.etsi.org/pda/queryform.asp).-libdca is a free library for decoding DTS Co. Herent Acoustics streams. The code is written b Gildas y Bazin and was based on the a52dec projec t. It is released under the terms of the GPL licen se. The DTS Coherent Acoustics standard (ETSI 1 02,114 v1.2.1), as published by the ETSI, is available here (http :// pda.etsi.org/pda/queryform.asp).

将16BIT的windowPCM的声音压缩为8bit的ULAW的声音格式,效果比较好,失真比较少.-16Bit s windowPCM will voice compression for voice ULAW the 8bit format, the effect is better, less distortion.

The user may: 1. Use the PESQ Software to:       i)   understand the PESQ Algorithm; or       ii)  evaluate the ability of the PESQ Algorithm to perform            its intended function of predicting the speech quality            of a system; or       iii) evaluate the computational complexity of the PESQ Algorithm,

封装了使用wav文件对象的录音和播放api。-Wav file package object to use recording and playback api.

提取音乐（wav格式）中两种和弦特征：chromagram和tonalcentroid。其中chromagram是12维特征，根据十二平均律而来；tonalcentroid是在十二平均律的基础上加入了和弦结构信息（五度循环圈）得到的六维信息。-Extraction of music (wav format) in the characteristics of the two chords: chromagram and tonalcentroid. Chromagram which is 12-dimensional features, according to十二平均律come tonalcentroid is the basis of十二平均律joined the chord structure of information (five degrees circle) received the six-dimensional information.

一个动态链接库，在其中定义了一个类，功能是录音、播放等。所使用的函数是API函数。-A dynamic link library, in which the definition of a class, function is recording shows. Function is used by API functions.

MELP encoder: 2.4 kbps MELP Proposed Federal Standard speech coder

mdct 实施，易于使用，包括修复点代码。我还举了一个例子，向您展示如何使用 此代码 wav 开发的 Linux 操作系统，但它也可以种植在窗口 （不需要更改代码，只是在 VC 中创建 dsp)

多县城播放wave.并引入队列，一个一个的播放-more county players wave. And the introduction of queue, a one player

训练高斯混合模型的程序，尽管此类代码较多，但本程序经过笔者改写优化后，很大程度上避免了普通方法中局部最优的问题。-Gaussian mixture model training procedures, although the code more, but the procedure after the author rewrite optimization, largely avoiding the ordinary method of optimal local issues.