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Paper Abstract and Keywords
Presentation 2012-06-08 10:20
Investigating physical parameters associated with auditory distance perception by numerically simulated source-to-ear transfer function
Hiraku Okumura, Sungyoung Kim (Yamaha), Makoto Otani (Shinshu-u) EA2012-35
Abstract (in Japanese) (See Japanese page) 
(in English) Recent 3D technologies allow viewers to perceive the depth disparity of visual objects and, thus, experience more realistic visual information. As for 3D auditory display, however, it has been less convincing for conventional loudspeaker layouts to manipulate perceived auditory depth. Previously, we have proposed a new method that utilizes a prototype electrostatic loudspeaker located above the listening position, which generated auditory imageries similar to headphone-displayed ones. Using this phenomenon and amplitude-based panning, we were able to move auditory imageries along the line connecting the front loudspeaker and the listening position. In addition, we investigated physical factors that were idiosyncratic in the electrostatic loudspeaker reproduction and that caused listener to perceive near auditory imageries, and the variance of group delay was a physical quantity that was associated with loudspeaker-listener distance. In this paper, we analyzed the physical parameter in depth using numerical simulation of loudspeaker-to-ear response, and compares it with the previous measurement. The simulation result shows that plane waves produce smaller variance of group delay in mid-low frequency band and the quantity is less influenced by various reflections compared to spherical waves.
Keyword (in Japanese) (See Japanese page) 
(in English) Auditory depth / 3D audio / Electrostatic speaker / Group delay / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 76, EA2012-35, pp. 13-17, June 2012.
Paper # EA2012-35 
Date of Issue 2012-06-01 (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 2012-06-08 - 2012-06-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaha Co. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics 
Paper Information
Registration To EA 
Conference Code 2012-06-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigating physical parameters associated with auditory distance perception by numerically simulated source-to-ear transfer function 
Sub Title (in English)  
Keyword(1) Auditory depth  
Keyword(2) 3D audio  
Keyword(3) Electrostatic speaker  
Keyword(4) Group delay  
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1st Author's Name Hiraku Okumura  
1st Author's Affiliation Yamaha Corporation (Yamaha)
2nd Author's Name Sungyoung Kim  
2nd Author's Affiliation Yamaha Corporation (Yamaha)
3rd Author's Name Makoto Otani  
3rd Author's Affiliation Shinshu University (Shinshu-u)
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Speaker Author-1 
Date Time 2012-06-08 10:20:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2012-35 
Volume (vol) vol.112 
Number (no) no.76 
Page pp.13-17 
#Pages 5 
Date of Issue 2012-06-01 (EA) 

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