Paper Abstract and Keywords |
Presentation |
2007-11-16 10:30
A Study on an Estimation Method of Parameters for Closed-box Loudspeaker system Rika Nakao, Yoshinobu Kajikawa, Yasuo Nomura (Kansai Univ.) EA2007-81 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose a way to estimate the linear and nonlinear parameters of a closed-box loudspeaker system at the same time by Simulated Annealing(SA) for Mirror filter. We have estimated the linear parameters using the impedance characteristic of a lodspeaker system and the nolinear ones using the displacement characteristic of a diaphragm by SA separately. However, we have not estimated them by the influence of the fixed linear parameters in some cases. In contrast, the proposed method is a way to estimate the linear and nonlinear parameters at the same time using the impedance characteristic and the displacement characteristic of a diaphragm by SA. We can estimate the parameters with accuracy to take account of both characteristics. We design Mirror filter which uses the parameters of a loudspeaker system determined by SA, and examine the effectiveness on compensating nonlinear distortions of a loudspeaker system. Experimental results demonstrate that the levels of nonlinear distortions can be reduced in the range of 5 dB to 15 dB compared with before compensation in case of using the parameters determined by SA. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Mirror filter / nonlinear distortion / Simulated Annealing / compensating distortion / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 317, EA2007-81, pp. 7-12, Nov. 2007. |
Paper # |
EA2007-81 |
Date of Issue |
2007-11-09 (EA) |
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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EA2007-81 |
Conference Information |
Committee |
EA |
Conference Date |
2007-11-15 - 2007-11-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kumamoto University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
EA |
Conference Code |
2007-11-EA |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on an Estimation Method of Parameters for Closed-box Loudspeaker system |
Sub Title (in English) |
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Keyword(1) |
Mirror filter |
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nonlinear distortion |
Keyword(3) |
Simulated Annealing |
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compensating distortion |
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1st Author's Name |
Rika Nakao |
1st Author's Affiliation |
Kansai University (Kansai Univ.) |
2nd Author's Name |
Yoshinobu Kajikawa |
2nd Author's Affiliation |
Kansai University (Kansai Univ.) |
3rd Author's Name |
Yasuo Nomura |
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Kansai University (Kansai Univ.) |
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Speaker |
Author-1 |
Date Time |
2007-11-16 10:30:00 |
Presentation Time |
30 minutes |
Registration for |
EA |
Paper # |
EA2007-81 |
Volume (vol) |
vol.107 |
Number (no) |
no.317 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2007-11-09 (EA) |
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