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Paper Abstract and Keywords
Presentation 2013-01-25 14:00
Study on identification method of feedback path in feedforward type noise control system
Tatsuya Sakai, Yusuke Iwamatsu, Kensaku Fujii (Univ. of Hyogo), Mitsuji Muneyasu (Kansai Univ.), Masakazu Morimoto (Univ. of Hyogo) EA2012-138
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper,we propose an control method of feedback which occurs on active noise control systems.
On active noise control systems, if back path occurs,the sound emitted from a speaker is detected by a noise detection microphone,therefore it causes howling,and failure of a speaker.
In order to solve this problem,we use that we can calculate primary path and secondary path.
In this paper,we present a method that we calculate the identification error of feedback path and feedback control filter using that result,and add the error to feedback control filter coefficient,and finally verify the validity of them by the simulations using actual impulse responses.
Keyword (in Japanese) (See Japanese page) 
(in English) active noise control / feedback path / simultaneous equations method / auxiliary filter / error microphone / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 388, EA2012-138, pp. 109-114, Jan. 2013.
Paper # EA2012-138 
Date of Issue 2013-01-17 (EA) 
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)
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Conference Information
Committee US EA  
Conference Date 2013-01-24 - 2013-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kambaikan, Doshisha Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics,and Related Topics 
Paper Information
Registration To EA 
Conference Code 2013-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on identification method of feedback path in feedforward type noise control system 
Sub Title (in English)  
Keyword(1) active noise control  
Keyword(2) feedback path  
Keyword(3) simultaneous equations method  
Keyword(4) auxiliary filter  
Keyword(5) error microphone  
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1st Author's Name Tatsuya Sakai  
1st Author's Affiliation University of Hyogo (Univ. of Hyogo)
2nd Author's Name Yusuke Iwamatsu  
2nd Author's Affiliation University of Hyogo (Univ. of Hyogo)
3rd Author's Name Kensaku Fujii  
3rd Author's Affiliation University of Hyogo (Univ. of Hyogo)
4th Author's Name Mitsuji Muneyasu  
4th Author's Affiliation Kansai University (Kansai Univ.)
5th Author's Name Masakazu Morimoto  
5th Author's Affiliation University of Hyogo (Univ. of Hyogo)
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Speaker Author-1 
Date Time 2013-01-25 14:00:00 
Presentation Time 20 minutes 
Registration for EA 
Paper # EA2012-138 
Volume (vol) vol.112 
Number (no) no.388 
Page pp.109-114 
#Pages
Date of Issue 2013-01-17 (EA) 


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