目 录
引言 ...................................................................................................................................................4
1.语音识别简介 ................................................................................................................................5
1.1 语音识别系统的分类 ...................................................................................................5
1.2 语音识别系统的基本构成 .......................................................................................5
2.语音识别参数 ................................................................................................................................6
2.1 线性预测系数(LPC) ...............................................................................................6
2.2 线性预测倒谱系数(LPCC)......................................................................................8
2.3 MFCC 系数 ...........................................................................................................8
2.4 参数计算流程.........................................................................................................9
3.DTW 算法....................................................................................................................................11
3.1 DTW 算法原理.....................................................................................................11
3.2 DTW 的高效算法 .................................................................................................14
4.HMM 算法...................................................................................................................................16
4.1 HMM 的原理 .......................................................................................................16
4.2 HMM 的前向概率和后向概率 ..........................................................................................17
4.3 识别算法——VITERBI 解码...................................................................................19
4.4 BAUM-WELCH 算法................................................................................................20
5.实验及总结 ..................................................................................................................................23
5.1 实验准备以及步骤 ...............................................................................................23
5.2 实验结果及讨论 .................................................................................................................25
5.3 实验结论 .............................................................................................................................29
参考文献 .........................................................................................................................................30
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