NOISY SPEECH RECOGNITION BY USING VARIANCE ADAPTED HIDDEN MARKOV-MODELS

被引：4

作者：

CHIEN, JT

LEE, LM

WANG, HC

机构：

[1] Department of Electrical Engineering, National Tsing Hua University, Hsinchu

来源：

ELECTRONICS LETTERS | 1995年 / 31卷 / 18期

关键词：

HIDDEN MARKOV MODELS; SPEECH RECOGNITION;

D O I：

10.1049/el:19951066

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Shrinkage of variances in HMM due to additive noise is an factor in speech recognition process. This variance shrinkage can be nonparametrically estimated from a training database. In the Letter we take this factor into account in the projection measure for noisy speech recognition. Experiments show that recognition rates can be improved significantly.

引用

页码：1555 / 1556

页数：2

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