SFS提供了计算语音本质的一系列工具。包括支持各种数据格式，信号处理和图形，频谱、共振峰分析，基频提取等等。在线文档说明请访问http://www.phon.ucl.ac.uk/resource/sfs/help/-SFS provides a voice calculated nature of a series of tools. Including support for various data formats, signal processing and graphics, spect

Speex是一套开源的声音处理代码库，里面有帮助文档和指导教程，支持移动通讯。 -Speex is an Open Source/Free Software patent-free audio compression format designed for speech