A modular approach to speech enhancement with an application to speech coding

被引：11

作者：

Accardi, AJ ^{[1
]}

Cox, RV ^{[1
]}

机构：

[1] AT&T Bell Labs, Res, Florham Park, NJ 07932 USA

来源：

ICASSP '99: 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS VOLS I-VI | 1999年

关键词：

D O I：

10.1109/ICASSP.1999.758097

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Ephraim and Malah's MMSE-LSA speech enhancement algorithm, while robust and effective, is difficult to tune and adjust for the tradeoff between noise reduction and distortion. We suggest a means of generalizing this design, which allows for other estimators besides the MMSE-LSA to be used within the same supporting framework. When a modified version of Ephraim and Van Trees's spectral domain constrained signal subspace estimator is used in this manner, we obtain a system with greater flexibility and similar performance. We also explore the possibility of using different speech enhancement techniques as pre-processors for different parameter extraction modules of the IS-641 speech coder. We show that such a strategy can increase the qualify of the coded speech and lead to a system that is more robust to differing noise types.

引用

页码：201 / 204

页数：4

共 9 条

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