Presentation 2008/5/22
Integration of Metamodel and Acoustic Model for Speech Recognition
Hironori MATSUMASA, Tetsuya TAKIGUCHI, Yasuo ARIKI, Ichao LI, Toshitaka NAKABAYASHI,
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Abstract(in English) Recently, the accuracy of speaker-independent speech recognition has been remarkably improved by use of stochastic modeling of speech. However, there has been very little research on orally-challenged people, such as those with speech impediments. Therefore we have tried to build the acoustic model for a person with articulation disorders. The articulation of the first utterance tends to become unstable due to strain of a muscle and that causes degradation of speech recognition, where MFCC (Mel Frequency Cepstral Coefficients) is used as speech features. Therefore we proposed a robust feature extraction method based on PCA (Principal Component Analysis) instead of MFCC. In this paper, we discuss our effort to integrate a Metamodel and Acoustic model approach. Metamodel has a technique for incorporating a model of a speaker's confusion matrix into the ASR process in such a way as to increase recognition accuracy. Its effectiveness is confirmed by word recognition experiments.
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Keyword(in English) articulation disorders / cerebral paralysis
Paper # SP2008-7,WIT2008-7
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Committee WIT
Conference Date 2008/5/22(1days)
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Registration To Well-being Information Technology(WIT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Integration of Metamodel and Acoustic Model for Speech Recognition
Sub Title (in English)
Keyword(1) articulation disorders
Keyword(2) cerebral paralysis
1st Author's Name Hironori MATSUMASA
1st Author's Affiliation Graduate School of Engineering, Kobe University()
2nd Author's Name Tetsuya TAKIGUCHI
2nd Author's Affiliation Graduate School of Engineering, Kobe University
3rd Author's Name Yasuo ARIKI
3rd Author's Affiliation Graduate School of Engineering, Kobe University
4th Author's Name Ichao LI
4th Author's Affiliation Faculty of Economics, Otemon Gakuin University
5th Author's Name Toshitaka NAKABAYASHI
5th Author's Affiliation Faculty of Human Development, Kobe University
Date 2008/5/22
Paper # SP2008-7,WIT2008-7
Volume (vol) vol.108
Number (no) 67
Page pp.pp.-
#Pages 6
Date of Issue