基于MATLAB的语音识别DTW算法设计.pdf资源-CSDN文库

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1 概述............................................................................................................................................................2

1.1 研究的目的和意义.................................................................................................................................2

1.2 国内外发展状况.....................................................................................................................................2

1.2.1 国外研究历史及现状..........................................................................................................................3

1.2.3 国内研究历史及现状..........................................................................................................................4

2 语音识别系统的概述................................................................................................................................4

3 MATLAB 中的语音信号的采集 ..............................................................................................................4

3.1 wavrecord 函数.......................................................................................................................................4

3.2 wavplay 函数 ..........................................................................................................................................6

4 语音信号的端点检测................................................................................................................................6

4.1 语音信号端点检测的流程.....................................................................................................................6

4.1.1 短时能量..............................................................................................................................................8

4.1.2 过零率的计算......................................................................................................................................9

4.1.3 双门限端点检测................................................................................................................................ 11

5 语音识别参数提取..................................................................................................................................12

5.1 MFCC 的基本原理...............................................................................................................................12

6 特定人语音识别算法-DTW 算法...........................................................................................................13

6.1DTW 算法原理......................................................................................................................................13

6.2DTW 算法流程及实验结果..................................................................................................................15

7 GUI 界面的设计......................................................................................................................................16

7.1 图形用户界面设计工具的启动...........................................................................................................16

7.3 测试与分析...........................................................................................................................................18

总结.............................................................................................................................................................20

致谢.............................................................................................................................................................21

参考文献.....................................................................................................................................................22

附件.............................................................................................................................................................23

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