sip 网管代理程序的堆栈代码，很经典，值得收藏。

单音频检测Goertzel算法类-single audio detection algorithm Goertzel algorithm category

来源于网上的C++技术开发的音频处理代码, 为国外开源代码, 可用来学习掌握C++的MP3音频处理算法。来源于网上公开资料，供学习使用。-From online C++ Technology development of audio processing code, for foreign open-source code, can be used to study and master the C++ The MP3 audio processing algorithms. Disclosure of information from the Internet for learning to use.

这个可以作为无损压缩格式的前端处理，可以降低难压缩音频文件的码率。-This can serve as a lossless compression format, front-end processing, can reduce the bit rate compressed audio files is difficult.

Directsound列举所有音频设备VB开发 -DirectSound enumerate all audio equipment VB Development

著名的libmad-mp3解码库，欢迎大家使用下载，好东西呀。-Famous libmad-mp3 decoder library, welcome everyone to use the download, you good things.

FAAD2 is a HE, LC, MAIN and LTP profile, MPEG2 and MPEG-4 AAC decoder. FAAD2 includes code for SBR (HE AAC) decoding. FAAD2 is licensed under the GPL. 该版本是最新发布的版本，能够在VC6.0和VC8.0下编译通过。-FAAD2 is a HE, LC, MAIN and LTP profile, MPEG2 and MPEG-4 AAC decoder.FAAD2 includes code for SBR (HE AAC) decoding.FAAD2 is licensed under the GPL. This version is the latest released version, can VC6. 0 and under VC8.0 compiler through.

通过面向对象的思想和多线程，java动画，双缓存技术，java对多媒体的支持等，在网页上设计了一个简单的音乐电子万年历，从而使音乐时钟的基本功能借助于java多线程的思想和技术得以实现。-through object-oriented thinking and multithreading, java animation, double-buffer technology, java to support multimedia on the web page design of a simple electronic music calendar. Music clock so that the basic functions using java multithreaded and technologies to achieve.

快速傅里叶变换算法的c语言实现程序，具体描述了fft算法的实现过程-Fast Fourier Transform algorithm c language implementation procedures, specific description of the fft algorithm implementation process

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.

This project produces a sin wave outout from the sound card from 125 Hz to 8 KHz.