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Paper Abstract and Keywords
Presentation
Experimental Study of Using Spectrum-based Features for Structural Representation of Speech
Masayuki Suzuki, Satoshi Asakawa, Yu Qiao, Nobuaki Minematsu, Keikichi Hirose (Univ. of Tokyo) SP2008-32
Abstract (in Japanese) (See Japanese page) 
(in English) Non-linguistic factors such as morphological differences in vocal tracts inevitably affect acoustic features of speech. Recently, a new speech representation, called as structural representation, was proposed which is completely independent of these factors.
In the representation, the absolute property of speech events is totally discarded and their relative property is only captured and modeled.
In the previous studies, all the discussions on this new representation were done using cepstrum-based features.
In this report, spectrum-based features are used for the structural representation and tested for speech recognition.
Mathematical and experimental discussions show the followings.
1) The spectrum-based structural representation also has strong speaker-invariance.
2) It can show a better performance of noisy speech recognition compared to cepstrum-based structures.
3) It shows a rather similar performance to humans when noise vocoded speech samples are tested.
Finally, we discuss the validity of the spectrum-based structural speech recognition as a model of human speech perception.
Keyword (in Japanese) (See Japanese page) 
(in English) structural representation of speech / spectrum-based features / automatic speech recognition / noise vocoded speech / auditory characteristics / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 116, SP2008-32, pp. 73-78, June 2008.
Paper # SP2008-32 
Date of Issue  
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 2008-06-27 - 2008-06-28 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech Production, Speech Perception, Hearing and Speech, etc. 
Paper Information
Registration To SP 
Conference Code 2008-06-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Study of Using Spectrum-based Features for Structural Representation of Speech 
Sub Title (in English)  
Keyword(1) structural representation of speech  
Keyword(2) spectrum-based features  
Keyword(3) automatic speech recognition  
Keyword(4) noise vocoded speech  
Keyword(5) auditory characteristics  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masayuki Suzuki  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Satoshi Asakawa  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
3rd Author's Name Yu Qiao  
3rd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
4th Author's Name Nobuaki Minematsu  
4th Author's Affiliation The University of Tokyo (Univ. of Tokyo)
5th Author's Name Keikichi Hirose  
5th Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time  
Presentation Time minutes 
Registration for SP 
Paper # SP2008-32 
Volume (vol) vol.108 
Number (no) no.116 
Page pp.73-78 
#Pages 6 
Date of Issue  

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