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Paper Abstract and Keywords
Presentation 2012-08-27 17:20
[Invited Talk] Nonlinear Dynamics of Voice Production -- From voice pathology, singing voice to bioacoustics --
Isao Tokuda (Ritsumeikan Univ.) LOIS2012-20 IE2012-52 EMM2012-43
Abstract (in Japanese) (See Japanese page) 
(in English) oice production is mainly composed of two parts: (a) laryngeal source produced by vocal fold vibrations and (b) acoustic filtering produced by supraglottal vocal tract. Since acoustic property of the vocal tract filter can be well described by a linear predictive model, the voice production is often considered as a linear system. The vocal folds vibrations are, however, an inherently nonlinear process, which gives rise to subharmonics, quasi-periodic oscillations, chaos, and variety of bifurcation phenomena under some conditions. For standard speech analysis, it is usually that the source and filter are mutually independent. However, in an extreme condition, e.g., in singing voice, such independence is broken and various levels of source-filter interaction can be observed. In the present talk, we start from the fundamentals of voice production and overview the nonlinear phenomena arise in the voice production. As applications, voice instability in pathological voice, bifurcations in register transition, and source-filter interaction in bioacoustics are described.
Keyword (in Japanese) (See Japanese page) 
(in English) Voice Production / Nonlinear Dynamics / Vocal Folds Vibration / Chaos / Bifurcations / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 190, EMM2012-43, pp. 49-49, Aug. 2012.
Paper # EMM2012-43 
Date of Issue 2012-08-20 (LOIS, IE, EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
Download PDF LOIS2012-20 IE2012-52 EMM2012-43

Conference Information
Committee EMM IE LOIS ITE-ME IEE-CMN  
Conference Date 2012-08-27 - 2012-08-28 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMM 
Conference Code 2012-08-EMM-IE-LOIS-ME-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Nonlinear Dynamics of Voice Production 
Sub Title (in English) From voice pathology, singing voice to bioacoustics 
Keyword(1) Voice Production  
Keyword(2) Nonlinear Dynamics  
Keyword(3) Vocal Folds Vibration  
Keyword(4) Chaos  
Keyword(5) Bifurcations  
Keyword(6)  
Keyword(7)  
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1st Author's Name Isao Tokuda  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2012-08-27 17:20:00 
Presentation Time 50 minutes 
Registration for EMM 
Paper # LOIS2012-20, IE2012-52, EMM2012-43 
Volume (vol) vol.112 
Number (no) no.188(LOIS), no.189(IE), no.190(EMM) 
Page p.49 
#Pages 1 
Date of Issue 2012-08-20 (LOIS, IE, EMM) 

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