语音变速不变调

本程序是用MATLAB设计并实现一个简单的说话人识别系统,其主要功能模块包括语音信号的输入管理模块 ,语音的鉴别即特征提取块,语音的认证模块,程序很全. -this procedure is used MATLAB design and implement a simple speech recognition system, Its main function modules including voice signal input management module, voice identification or feature extraction block, Voice authentication module, the whole process is.

包含G.7221语音的编解码算法，有定点和浮点两个版本，均有VC工具的工程和测试代码，局部有无损优化

To run this sample you must have a sound card connected to the PC. If you want to see some signal you must plug a Microphone to the mic connector of the sound card. If you don t have a mic you can plug an hearphone to the mic connector and speak closely in it.

回音消除源程序（好例子）-Echo dispel source(very good example)

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对16bit的WindowPCM的语音文件进行压缩为4BIT的文件,压缩率约为75％,可大幅缩减所占用的空间.-The WindowPCM of 16bit audio files for 4bit compressed files, compression rate is about 75, can be substantially reduced by the space occupied.

实现了 从多媒体文件中抽取声音流 并写入令一个文件 对于初学者还不错-MUTIL MEDIA

具有小型影视系统的所有功能 方便的后台操作 完善的模版功能 p2p数据自动更新，无须人为干预 可以自己添加其他的影视分类 特点： 数据自动更新，无须人为干预。 可以添加自己的影视节目。不影响p2p数据。 采用phparticle211的编译型模版，提高程序的效率。-small television systems have all the functions to facilitate operation of the background sound template function automatically update data p2p without human intervention can add the other features of the Television Classification : data updated automatically, without human intervention. Can add their own video programming. P2p data is not affected. Phparticle211 using the template-based compiler, the efficiency of the process.

G711A/U的编解码，测试可用，不过噪声比较大-G711A/U codec, test available, but relatively large noise

这个设计范例展示了如何使用DE2-115 开发板以及一个PS/2 键盘和扬声器，来实现多音电子 键盘。 PS/2 键盘模拟钢琴键盘用于输入按键信息。DE2-115 上的FPGA 芯片用来实现音乐合成器， 生成不同音调的音频信号。连接到DE2-115 开发板上的VGA 显示器用来显示按键动作。