语音识别的一些基础理论以及语音识别各个组成部分：预处理，参数提取，模式匹配，每个部分有多种详细的方法介绍。还包括说话人识别，语种识别，关键词识别。-basic theory of speech recognition and its component:pre-processing,extraction of parameters,matching.Each section has many method to be supplied.Besides,there are recognition