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Paper Abstract and Keywords
Presentation 2014-07-11 17:50
A Study on Multi-channel Active Noise Control System Using Parametric Array Loudspeakers
Kihiro Tanaka, Chuang Shi, Yoshinobu Kajikawa (Kansai Univ.) CAS2014-50 VLD2014-59 SIP2014-71 MSS2014-50 SIS2014-50
Abstract (in Japanese) (See Japanese page) 
(in English) Acoustic noise problems are becoming increasingly serious in the process of industrialization. In particular, an effective approach to reduce unwanted noise is needed in factory. Therefore, we have studied an active noise control (ANC) system to reduce factory noise where manufacturing equipments generate noise levels of over 90 dB. In this paper, we focus on a multi-channel ANC system using parametric array loudspeaker (PAL) as control sources. The proposed ANC system can not only reduce unwanted acoustic noise at the desired locations but also suppress the increase in sound pressure level at other locations because the PAL have a super-directivity feature. If interferences between different channels of the proposed ANC system are minimized, therefore each channel in this ANC system can be controlled independently because PAL are used as secondary sources. By this mean, the computational complexity of a multiple-channel ANC system is reduced since the cross-talk secondary path models are negligible. In this paper, we demonstrate the influence of cross-talk in proposed Case(1,2,2,) ANC syetem. The performance of the proposed ANC system is demonstrated through experiments and simulations. It has been confirmed that PAL outperformed omnidirectional loudspeakers in terms of being free from cross-talk in the Case(1,2,2) ANC system.
Keyword (in Japanese) (See Japanese page) 
(in English) Active noise control / Parametric array loudspeaker / Factory noise / Multi-channel ANC / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 124, SIP2014-71, pp. 271-275, July 2014.
Paper # SIP2014-71 
Date of Issue 2014-07-02 (CAS, VLD, SIP, MSS, SIS) 
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 CAS2014-50 VLD2014-59 SIP2014-71 MSS2014-50 SIS2014-50

Conference Information
Conference Date 2014-07-09 - 2014-07-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) System, signal processing and related topics 
Paper Information
Registration To SIP 
Conference Code 2014-07-CAS-SIP-MSS-VLD-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Multi-channel Active Noise Control System Using Parametric Array Loudspeakers 
Sub Title (in English)  
Keyword(1) Active noise control  
Keyword(2) Parametric array loudspeaker  
Keyword(3) Factory noise  
Keyword(4) Multi-channel ANC  
1st Author's Name Kihiro Tanaka  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Chuang Shi  
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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Date Time 2014-07-11 17:50:00 
Presentation Time 20 
Registration for SIP 
Paper # IEICE-CAS2014-50,IEICE-VLD2014-59,IEICE-SIP2014-71,IEICE-MSS2014-50,IEICE-SIS2014-50 
Volume (vol) IEICE-114 
Number (no) no.122(CAS), no.123(VLD), no.124(SIP), no.125(MSS), no.126(SIS) 
Page pp.271-275 
#Pages IEICE-5 
Date of Issue IEICE-CAS-2014-07-02,IEICE-VLD-2014-07-02,IEICE-SIP-2014-07-02,IEICE-MSS-2014-07-02,IEICE-SIS-2014-07-02 

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