An amplitude warping approach to intra-speaker normalization for speech recognition

被引：0
|
作者：
Hong, KS [1 ]
机构：
[1] Sungkyunkwan Univ, Sch Informat & Commun Engn, Suwon, South Korea
[2] SITRC, Suwon, South Korea
来源：
COMPUTATIONAL SCIENCE AND ITS APPLICATIONS - ICCSA 2003, PT 2, PROCEEDINGS | 2003年 / 2668卷
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we present an intra-speaker warping factor estimation based on pitch alteration utterance. The feature space distributions of untransformed speech from the pitch alteration utterance of intra-speaker would vary due to the acoustic differences of speech produced by glottis and vocal tract. Therefore, it may be possible to determine the amplitude warping factor by calculating the inverse ratio of input to reference pitch. As the recognition results, the error rate is reduced from 0.4% to 2.3% for digit and word decoding.
引用
收藏
页码：639 / 645
页数：7
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