目 录
前 言 .......................................................................................................................1
第 1 章 语音识别技术概述 ...................................................................................2
1.1 语音识别的历史背景 .........................................................................................................2
1.1.1 国外研究历史及现状 ..................................................................................................3
1.1.2 国内研究历史及现状 ..................................................................................................4
1.2 语音识别技术应用 .............................................................................................................5
1.3 语音识别技术的发展 .........................................................................................................6
1.4 语音识别技术的研究方向 .................................................................................................7
第二章 主要研究内容和方法 ...............................................................................9
2.1 语音识别的研究内容 .........................................................................................................9
2.2 语音识别系统的分类 .........................................................................................................9
2.3 语音识别的研究方法 .......................................................................................................10
2.4 并行计算技术 ...................................................................................................................11
2.5 OPENMP 编程模型............................................................................................................13
2.5.1 OpenMP 介绍.............................................................................................................13
2.5.2 OpenMP 指导命令流程.............................................................................................15
第三章 基于 VC2005 孤立词语音识别编程的实现 .........................................18
3.1 语音识别系统原理及设计方法 .......................................................................................18
3.1.1 语音识别系统的基本原理 ........................................................................................18
3.1.2 语音识别的几种基本设计方法 ................................................................................19
3.2 孤立词语音识别系统 .......................................................................................................20
3.2.1 孤立词语音识别系统的构成 ....................................................................................20
3.2.2 孤立词语音识别系统的技术主要项目 ....................................................................21
3.2.3 基于语音轨迹特征的匹配技术 ................................................................................22
3.3 语音识别设计流程 ...........................................................................................................22
3.3.1 样本语音采集 ............................................................................................................22
3.3.2 语音信号预处理 ........................................................................................................22
3.3.3 Mel 倒谱系数特征表示.............................................................................................23
3.3.4 HMM 隐马尔科夫模式匹配 .....................................................................................25
3.3.7 OpenMP 编程实现多核并行运算.............................................................................26
结束语 .....................................................................................................................31
