著名的音频编辑软件Audacity源码，版本1

wave音频文件转换成其他格式的编解码程序-wave audio file converted into other formats codec procedures

1.过零率（ZCR）的音频信号的ZCR是多少的量度oftimes信号通过使用窗函数上述和零如上所述穿过零振幅线由过渡从positiveto ZCR还包括将所述音频信号分成temporalsegments的负或副versa.Theimplementation渡ratefor每个段是使用关系计算如下给出[8] [9]。其中，并且可具有三个可能的值：1，0，-1depending在样品是否为正，零或负的。该值的foreach窗口收集产生具有ZCR特征向量的 ...（3）

c语言开发的用来控制声卡音调的源码。有一定的参考价值-used to control the pitch of the sound source. There will be some reference value

程序将文本合成为语音，并输入到一个wav文件当中-Procedures for the voice synthesis of text and enter them into a wav file

对音频信号的无损压缩算法。比MP3的质量还要高的多的音频压缩算法！-right audio signals in the lossless compression algorithm. The quality than MP3 but also the high number of audio compression algorithm!

自己编写的一款可以进行双路PCM语音混频的程序，针对的是16位的PCM语音数据，经过验证，比常规的混音算法质量好许多，特别是进行多路混频时，重复调用该程序也可以达到比较满意的结果。-own section can be prepared for two-way voice PCM mixing procedures, The address is 16 PCM voice data, after verification, than conventional mixing algorithm many good quality, especially for multi-channel mixer, repeat the procedure call also will be more satisfied with the results.

制作能播放MIDI，WAV和AVI文件的播放器-can produce broadcast MIDI, WAV, and AVI file player

DA转换 多波形发生器 方波 三角波 锯齿波-Waveform Generator Multi-waveform

能实现1Hz~50MHz间的频率测量，显示信号周期，能实现1Hz~15KHz间的信号波形实时显示，采样速率120KHz。-1Hz ~ 50MHz to achieve inter-frequency measurements show that the signal cycle, to achieve inter-1Hz ~ 15KHz real-time display of signal waveforms, the sampling rate of 120KHz.

使用Directx 播放视频文件 已测试通过-use Directx broadcast video files have been tested