目录1概述............................................................................................................................................................21.1研究的目的和意义.................................................................................................................................21.2国内外发展状况.....................................................................................................................................21.2.1国外研究历史及现状..........................................................................................................................31.2.3国内研究历史及现状..........................................................................................................................42语音识别系统的概述................................................................................................................................43MATLAB中的语音信号的采集...............................................................................................................43.1wavrecord函数.......................................................................................................................................43.2wavplay函数..........................................................................................................................................64语音信号的端点检测................................................................................................................................64.1语音信号端点检测的流程.....................................................................................................................64.1.1短时能量..............................................................................................................................................84.1.2过零率的计算......................................................................................................................................94.1.3双门限端点检测................................................................................................................................115语音识别参数提取..................................................................................................................................125.1MFCC的基本原理...............................................................................................................................126特定人语音识别算法-DTW算法...........................................................................................................136.1DTW算法原理......................................................................................................................................146.2DTW算法流程及实验结果..................................................................................................................167GUI界面的设计......................................................................................................................................177.1图形用户界面设计工具的启动...........................................................................................................177.3测试与分析...........................................................................................................................................18总结......................................................................
