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Paper Abstract and Keywords
Presentation 2015-07-03 09:30
A study on transaural system using directivity control of regular icosahedron loudspeaker array.
Makoto Daikohara, Yoichi Haneda (UEC) EA2015-1
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes a transaural system using directivity control of a regular icosahedron loudspeaker array. The transaural system can localize an arbitrary sound image for a listener by reproducing the independent sounds at each ear with loudspeakers. However, because the system requires crosstalk cancelers, which are designed with multiple-point control, it is sensitive to the listening position. To overcome this problem, we investigate if the crosstalk component can be suppressed with the null beamformer of a loudspeaker array. First, a prototype regular icosahedron loudspeaker array was made with a 3D printer. Next, we confirmed that the directivity of a regular icosahedron loudspeaker array is capable of suppressing crosstalk components. The reproducing signals for the left and right ears are calculated by convoluting the beamformer signals with the look-direction of each ear and a head-related transfer function. The subjective evaluations we conducted showed that our system localized sound images.
Keyword (in Japanese) (See Japanese page) 
(in English) Loudspeaker array / Directivity control / Transaural system / Least squares method / Regular icosahedron / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 126, EA2015-1, pp. 1-6, July 2015.
Paper # EA2015-1 
Date of Issue 2015-06-26 (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)
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Conference Information
Committee EA  
Conference Date 2015-07-03 - 2015-07-03 
Place (in Japanese) (See Japanese page) 
Place (in English) The Univ. of Electro-Communications, 80th Anniversary Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics, Interactive Acquisition and Reproduction 
Paper Information
Registration To EA 
Conference Code 2015-07-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on transaural system using directivity control of regular icosahedron loudspeaker array. 
Sub Title (in English)  
Keyword(1) Loudspeaker array  
Keyword(2) Directivity control  
Keyword(3) Transaural system  
Keyword(4) Least squares method  
Keyword(5) Regular icosahedron  
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1st Author's Name Makoto Daikohara  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Yoichi Haneda  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2015-07-03 09:30:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2015-1 
Volume (vol) vol.115 
Number (no) no.126 
Page pp.1-6 
#Pages 6 
Date of Issue 2015-06-26 (EA) 

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