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 |
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) |
Download PDF |
NLP2007-109 |
|