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

說明波的基本性質以及波動的運作方式，適合初學者入門使用。-Say Mingbo basic nature of the fluctuations in the mode of operation, suitable for beginners to use portal.