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Paper Abstract and Keywords
Presentation 2010-05-28 15:40
Speech communication modeled as timbre modulation and demodulation
Nobuaki Minematsu (Univ. of Tokyo.) TL2010-9
Abstract (in Japanese) (See Japanese page) 
(in English) Perceptual invariance against a large amount of acoustic variability in speech has been a long-discussed question in speech science and engineering and it is still an open question. Recently, we proposed a candidate answer for it based on mathematically-guaranteed relational invariance. Here, completely transform-invariant features, $f$-divergences, are extracted from speech dynamics of an input utterance and they are used to represent that utterance. In this paper, this representation is interpreted from a viewpoint of telecommunications and evolutionary anthropology. Speech production is often regarded as a process of modulating the baseline timbre of a speaker's voices by manipulating the vocal organs, i.e. spectrum modulation. Then, extraction of the linguistic content from an utterance can be viewed as a process of spectrum {\it de}modulation. This modulation-demodulation model of speech communication has a good link to known morphological and cognitive differences between humans and apes. The model also claims that a linguistic content is transmitted mainly by supra-segmental (prosodic) features.
Keyword (in Japanese) (See Japanese page) 
(in English) (de)modulation / timbre / speech communication / anthropology / autism / supra-segmental features / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 63, TL2010-9, pp. 45-50, May 2010.
Paper # TL2010-9 
Date of Issue 2010-05-21 (TL) 
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 TL  
Conference Date 2010-05-28 - 2010-05-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To TL 
Conference Code 2010-05-TL 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speech communication modeled as timbre modulation and demodulation 
Sub Title (in English)  
Keyword(1) (de)modulation  
Keyword(2) timbre  
Keyword(3) speech communication  
Keyword(4) anthropology  
Keyword(5) autism  
Keyword(6) supra-segmental features  
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1st Author's Name Nobuaki Minematsu  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo.)
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Speaker Author-1 
Date Time 2010-05-28 15:40:00 
Presentation Time 25 minutes 
Registration for TL 
Paper # TL2010-9 
Volume (vol) vol.110 
Number (no) no.63 
Page pp.45-50 
#Pages 6 
Date of Issue 2010-05-21 (TL) 

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