MULTI-LEVEL ADAPTIVE NETWORKS IN TANDEM AND HYBRID ASR SYSTEMS

被引:0
|
作者
Bell, Peter [1 ]
Swietojanski, Pawel [1 ]
Renals, Steve [1 ]
机构
[1] Univ Edinburgh, Ctr Speech Technol Res, Edinburgh EH8 9AB, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
deep neural networks; tandem; hybrid; MLAN; TED; BBC;
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In this paper we investigate the use of Multi-level adaptive networks (MLAN) to incorporate out-of-domain data when training large vocabulary speech recognition systems. In a set of experiments on multi-genre broadcast data and on TED lecture recordings we present results using of out-of-domain features in a hybrid DNN system and explore tandem systems using a variety of input acoustic features. Our experiments indicate using the MLAN approach in both hybrid and tandem systems results in consistent reductions in word error rate of 5-10% relative.
引用
收藏
页码:6975 / 6979
页数:5
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