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Paper Abstract and Keywords
Presentation 2026-03-04 11:00
[Poster Presentation] Study on a Multi-Channel ANC System Employing Online Secondary Path Modelling with Channel Decorrelation
Fuma Tsujiwaki, Shota Toyooka, Yoshinobu Kajikawa (Kansai Univ.) EA2025-149 SIP2025-169 SP2025-102
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a multichannel active noise control (ANC) system with online secondary path modeling and channel decorrelation. A time-varying first-order all-pass filter is introduced as a decorrelation filter to suppress inter-channel cross-correlation between left and right channels, enabling the use of arbitrary auxiliary signals, including stereophonic music signals. In addition, the maximum deviation of the decorrelation process is adaptively controlled based on the secondary path estimation error, leading to improved perceptual audio quality. Simulation results verify that the proposed system preserves noise reduction performance and tracking capability under secondary path variations while achieving superior perceptual quality compared with conventional methods.
Keyword (in Japanese) (See Japanese page) 
(in English) ANC system / Online secondary path modeling / Stereo acoustic echo cancellation (AEC) / Time-varying first-order all-pass filter / Variable step-size parameter / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 369, EA2025-149, pp. 447-454, March 2026.
Paper # EA2025-149 
Date of Issue 2026-02-23 (EA, SIP, SP) 
ISSN 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 EA2025-149 SIP2025-169 SP2025-102

Conference Information
Committee SP EA SIP IPSJ-SLP  
Conference Date 2026-03-02 - 2026-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2026-03-SP-EA-SIP-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on a Multi-Channel ANC System Employing Online Secondary Path Modelling with Channel Decorrelation 
Sub Title (in English)  
Keyword(1) ANC system  
Keyword(2) Online secondary path modeling  
Keyword(3) Stereo acoustic echo cancellation (AEC)  
Keyword(4) Time-varying first-order all-pass filter  
Keyword(5) Variable step-size parameter  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Fuma Tsujiwaki  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Shota Toyooka  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name Yoshinobu Kajikawa  
3rd Author's Affiliation Kansai University (Kansai Univ.)
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Speaker Author-1 
Date Time 2026-03-04 11:00:00 
Presentation Time 80 minutes 
Registration for EA 
Paper # EA2025-149, SIP2025-169, SP2025-102 
Volume (vol) vol.125 
Number (no) no.369(EA), no.370(SIP), no.371(SP) 
Page pp.447-454 
#Pages 8 
Date of Issue 2026-02-23 (EA, SIP, SP) 

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