INCORPORATING MASK MODELLING FOR NOISE-ROBUST AUTOMATIC SPEECH RECOGNITION

被引：2
|
作者：
Koekueer, Muenevver [1 ]
Jancovic, Peter [1 ]
机构：
[1] Univ Birmingham, Sch Elect Elect & Comp Engn, Birmingham, W Midlands, England
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS | 2009年
关键词：
automatic speech recognition; mask modelling; noise robustness; missing-feature theory;
D O I：
10.1109/ICASSP.2009.4960487
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In this paper we investigate an incorporation of mask modelling into an HMM-based ASR system. The mask model is estimated for each HMM state and mixture by using a separate Viterbi-style training procedure and it expresses which regions of the spectrum are expected to be uncorrupted by noise for the HMM state. Experimental evaluation is performed on noisy speech data from the Aurora 2 database. Significant performance improvements are achieved when the mask modelling is incorporated within the standard model and two models that had already compensated for the effect of the noise.
引用
收藏
页码：3929 / 3932
页数：4
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