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Paper Abstract and Keywords
Presentation 2007-12-19 13:25
Parameter estimation of asymmetric two-mass model for vocal fold atrophy
Hiroshi Naganuma, Isao Tokuda (JAIST), Miwako Kimura, Hiroshi Imagawa (University of Tokyo Hospital), Ken-Ichi Sakakibara (Health Sciences University of Hokkaido), Niro Tayama (International Medical Center) NLP2007-109
Abstract (in Japanese) (See Japanese page) 
(in English) Voice disorders caused by vocal fold paralysis originate from a complex nonlinear vibration of the vocal folds. Understanding of the voice disorders by the vocal folds mathematical model has a possibility of giving an important finding on abnormal vocal fold vibration as well as on improved the voice surgery. In the vocal fold model research, a variety of models exists ranging from a simple two-mass model to a complex multi-mass model. However, only a few researches aim at modeling an individual quantitative characteristics of actual vocal folds data. In this research, parameters of the mathematical model are estimated for digital high-speed recording of abnormal vocal fold vibrations. By using a simple two mass model, right and left vocal fold tension, subglottal pressure and glottal area are estimated. Whether the effect of voice surgery operation is reflected in the estimated parameter is judged by using data before and after a surgical operation. Based on the results, we consider whether the simulator of the voice surgery can be constructed by the mathematical model.
Keyword (in Japanese) (See Japanese page) 
(in English) Abnormal vibrations analysis / Two-mass model / Digital high-speed recording / Parameter estimation / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 399, NLP2007-109, pp. 5-10, Dec. 2007.
Paper # NLP2007-109 
Date of Issue 2007-12-12 (NLP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 NLP  
Conference Date 2007-12-19 - 2007-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To NLP 
Conference Code 2007-12-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Parameter estimation of asymmetric two-mass model for vocal fold atrophy 
Sub Title (in English)  
Keyword(1) Abnormal vibrations analysis  
Keyword(2) Two-mass model  
Keyword(3) Digital high-speed recording  
Keyword(4) Parameter estimation  
1st Author's Name Hiroshi Naganuma  
1st Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
2nd Author's Name Isao Tokuda  
2nd Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
3rd Author's Name Miwako Kimura  
3rd Author's Affiliation University of Tokyo Hospital (University of Tokyo Hospital)
4th Author's Name Hiroshi Imagawa  
4th Author's Affiliation University of Tokyo Hospital (University of Tokyo Hospital)
5th Author's Name Ken-Ichi Sakakibara  
5th Author's Affiliation Health Sciences University of Hokkaido (Health Sciences University of Hokkaido)
6th Author's Name Niro Tayama  
6th Author's Affiliation International Medical Center (International Medical Center)
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Speaker Author-1 
Date Time 2007-12-19 13:25:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2007-109 
Volume (vol) vol.107 
Number (no) no.399 
Page pp.5-10 
Date of Issue 2007-12-12 (NLP) 

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