音频信号处理资料收集

1、https://code.google.com/p/tspl/ http://my.oschina.net/zmjerry/blog/13049 Signal Processing Library in C++

2、https://github.com/zsiciarz/aquila Aquila is a digital signal processing library for C++11

3、http://www.speex.org/ speex

4、http://www.webrtc.org/ webrtc