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Paper Abstract and Keywords
Presentation 2010-11-19 09:15
Acoustic separation between linguistic and extra-linguistic information in speech and its significant importance to enable speech communication
Nobuaki Minematsu (Univ. Tokyo) SP2010-78
Abstract (in Japanese) (See Japanese page) 
(in English) The source-filter model, which was derived from observations of speech production, has been widely used to separate speech features into two parts: vocal source characteristics and vocal tract characteristics. However, the latter characteristics, often called as spectrum envelopes, transmit both linguistic information and extra-linguistic information, which are intrinsically independent of each other. This is why a speaker-independent acoustic model of a linguistic content for ASR is often built statistically by collecting utterances of that linguistic content from a large number of speakers. In the beginning part of this paper, after reviewing infants' vocal imitation for language acquisition, the vocal imitation observed in severely impaired autistics who have difficulty in speech communication, and the vocal imitation of animals, we claim the importance to derive the acoustic modeling which can separate acoustic features for linguistic information and those for extra-linguistic information. We also insist that the acoustic modeling with incomplete separation should be suited not for realizing speech communication ability on machines but only for realizing impersonation ability on machines. Further, we describe that, only with incomplete separation, speech communication has to be difficult even for humans. In the ending part of this paper, we introduce the structural representation of speech, which we proposed to realize the information separation for creating human-like machines, and show some experimental results obtained by using the proposed representation.
Keyword (in Japanese) (See Japanese page) 
(in English) source-filter model / linguistic and extra-linguistic information / spectral envelope / speech communication / vocal imitation and impersonation / autism / speech structure / f-divergence  
Reference Info. IEICE Tech. Rep., vol. 110, no. 297, SP2010-78, pp. 53-58, Nov. 2010.
Paper # SP2010-78 
Date of Issue 2010-11-11 (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 2010-11-18 - 2010-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Aichi Prefectural Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2010-11-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Acoustic separation between linguistic and extra-linguistic information in speech and its significant importance to enable speech communication 
Sub Title (in English)  
Keyword(1) source-filter model  
Keyword(2) linguistic and extra-linguistic information  
Keyword(3) spectral envelope  
Keyword(4) speech communication  
Keyword(5) vocal imitation and impersonation  
Keyword(6) autism  
Keyword(7) speech structure  
Keyword(8) f-divergence  
1st Author's Name Nobuaki Minematsu  
1st Author's Affiliation The University of Tokyo (Univ. Tokyo)
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Speaker Author-1 
Date Time 2010-11-19 09:15:00 
Presentation Time 30 minutes 
Registration for SP 
Paper # SP2010-78 
Volume (vol) vol.110 
Number (no) no.297 
Page pp.53-58 
#Pages 6 
Date of Issue 2010-11-11 (SP) 

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