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Paper Abstract and Keywords
Presentation 2008-03-20 15:15
[Poster Presentation] Accent Analysis for Mandarin Large Vocabulary Continuous Speech Recognition
Dong Yang, Koji Iwano, Sadaoki Furui (Tokyo Inst. of Tech.) SP2007-201
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents our work on accent issues in Mandarin large vocabulary continuous speech recognition. What we want to address in this paper are two questions about Mandarin: whether accents affect speech recognition greatly; how we can solve the problem. For the first question, we know that, across a vast region and a huge population, there are varieties of accented Mandarin spoken in China, which are mainly caused by speakers' dialects. In accented Mandarin, the dominant problem is mispronunciations of three types of confusions. We summarize them in this paper and focus on their effects on speech recognition for each speaker. For the second question, we try to perform maximum likelihood linear regression (MLLR) adaptation for each speaker and then analyze the recognition results. We find that up to 45% of the accent related errors get corrected for accented speakers and there is no such improvement for standard speakers. Our experimental analysis and result support us to conclude that the accent is a serious problem in Mandarin speech recognition and the MLLR adaptation is effective in reducing the mismatch caused by accents.
Keyword (in Japanese) (See Japanese page) 
(in English) Analysis of Mandarin accents / large vocabulary continuous speech recognition / accent adaptation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 551, SP2007-201, pp. 87-92, March 2008.
Paper # SP2007-201 
Date of Issue 2008-03-13 (SP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SP  
Conference Date 2008-03-20 - 2008-03-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Workshop (Mar 20), Speech Production, Speech Perception, Hearing and Speech, etc. (Mar 21) 
Paper Information
Registration To SP 
Conference Code 2008-03-SP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Accent Analysis for Mandarin Large Vocabulary Continuous Speech Recognition 
Sub Title (in English)  
Keyword(1) Analysis of Mandarin accents  
Keyword(2) large vocabulary continuous speech recognition  
Keyword(3) accent adaptation  
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1st Author's Name Dong Yang  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Koji Iwano  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name Sadaoki Furui  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2008-03-20 15:15:00 
Presentation Time 90 minutes 
Registration for SP 
Paper # SP2007-201 
Volume (vol) vol.107 
Number (no) no.551 
Page pp.87-92 
#Pages 6 
Date of Issue 2008-03-13 (SP) 

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