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Paper Abstract and Keywords
Presentation 2012-05-24 14:10
Performance improvement of the analog ANC circuit for a duct by addition of an all-pass filter
Tatsuki Hyodo, Gaku Asakura, Kiwamu Tsukada, Masashi Kato (NIT) EA2012-12 SIP2012-12 SP2012-12
Abstract (in Japanese) (See Japanese page) 
(in English) Active noise control (ANC) has been known as a way to decrease low frequency noise in a duct. So far, we have developed an active noise control system in a duct using analog circuits. However the noise canceling effect of this analog ANC was not so high because of time lag between noise passing the duct and signal passing the circuit. To increase the noise canceling effect, in this study, we added an all-pass filter circuit to the analog ANC circuit in order to delay signal in the circuit. As a result, we confirmed improvement of the noise canceling effect of the analog ANC circuit by addition of the all-pass filter.
Keyword (in Japanese) (See Japanese page) 
(in English) analog cirucit / ANC / all-pass filter / delay / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 48, SIP2012-12, pp. 65-69, May 2012.
Paper # SIP2012-12 
Date of Issue 2012-05-17 (EA, SIP, SP) 
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)
Download PDF EA2012-12 SIP2012-12 SP2012-12

Conference Information
Committee EA SP SIP  
Conference Date 2012-05-24 - 2012-05-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Nakanoshima Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech and Acoustic Signal Processing, Speech, and Related Topics 
Paper Information
Registration To SIP 
Conference Code 2012-05-EA-SP-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance improvement of the analog ANC circuit for a duct by addition of an all-pass filter 
Sub Title (in English)  
Keyword(1) analog cirucit  
Keyword(2) ANC  
Keyword(3) all-pass filter  
Keyword(4) delay  
1st Author's Name Tatsuki Hyodo  
1st Author's Affiliation Nagoya Institute of Technology (NIT)
2nd Author's Name Gaku Asakura  
2nd Author's Affiliation Nagoya Institute of Technology (NIT)
3rd Author's Name Kiwamu Tsukada  
3rd Author's Affiliation Nagoya Institute of Technology (NIT)
4th Author's Name Masashi Kato  
4th Author's Affiliation Nagoya Institute of Technology (NIT)
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Date Time 2012-05-24 14:10:00 
Presentation Time 25 
Registration for SIP 
Paper # IEICE-EA2012-12,IEICE-SIP2012-12,IEICE-SP2012-12 
Volume (vol) IEICE-112 
Number (no) no.47(EA), no.48(SIP), no.49(SP) 
Page pp.65-69 
#Pages IEICE-5 
Date of Issue IEICE-EA-2012-05-17,IEICE-SIP-2012-05-17,IEICE-SP-2012-05-17 

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