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Paper Abstract and Keywords
Presentation 2014-04-17 16:05
Local sound area generation using a circular loudspeaker array and an additional loudspeaker
Takuma Okamoto (NICT) EA2014-4
Abstract (in Japanese) (See Japanese page) 
(in English) Reproduction errors are occurred except at the reference circle in sound field reproduction using a circular loudspeaker array due to the dimension mismatch. Because point sources instead of line sources are used for implementations of circular loudspeaker array systems. A novel local sound reproduction method nearby the array is proposed based on this dimension mismatch. In the proposed method, a virtual point source centered in a circular array is reproduced by a circular loudspeaker array and an additional real point source centered at a circular array is reproduced in anti-phase simultaneously. Driving functions for reproducing a virtual point source centered at in an array using a circular loudspeaker array are analytically derived. Computer simulation results show that the proposed method can realize local sound reproduction nearby a circular array.
Keyword (in Japanese) (See Japanese page) 
(in English) local sound reproduction / circular loudspeaker array / reproduction in a plane / dimension mismatch / Green's function / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 3, EA2014-4, pp. 25-30, April 2014.
Paper # EA2014-4 
Date of Issue 2014-04-10 (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)
Download PDF EA2014-4

Conference Information
Committee EA  
Conference Date 2014-04-17 - 2014-04-17 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT Universal Communication Research Lab. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General Topics 
Paper Information
Registration To EA 
Conference Code 2014-04-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Local sound area generation using a circular loudspeaker array and an additional loudspeaker 
Sub Title (in English)  
Keyword(1) local sound reproduction  
Keyword(2) circular loudspeaker array  
Keyword(3) reproduction in a plane  
Keyword(4) dimension mismatch  
Keyword(5) Green's function  
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1st Author's Name Takuma Okamoto  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2014-04-17 16:05:00 
Presentation Time 35 minutes 
Registration for EA 
Paper # EA2014-4 
Volume (vol) vol.114 
Number (no) no.3 
Page pp.25-30 
#Pages 6 
Date of Issue 2014-04-10 (EA) 

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