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Paper Abstract and Keywords
Presentation 2009-10-22 09:15
Sound localization accuracy versus depression angle in multichannel reproduction system
Yuuki Tanaka, Haruhide Hokari, Shoji Shimada (Nagaoka Univ. of Tech.) EA2009-56
Abstract (in Japanese) (See Japanese page) 
(in English) This report studies the impact of depression angles on the sound localization accuracy of a multichannel system implemented using the 3/2 loudspeaker arrangement.
First, the traditional transaural method was used to confirm the discrepancy in impulse responses between real and virtual sound sources.
The normalized square errors were less than -15dB on twelve presented sound source directions, which included depression and azimuth angles.
Next, listening tests for sound localization were performed.
The results showed that the virtual source yielded greater variance in sound localization values
and worse sound localization accuracy than the real source at depression angles greater than 20 degrees.
The same results were obtained from significant difference tests.
Last, we confirmed that using the mirror image method to account for floor reflection was effective;
it allowed the virtual sound locations to basically match the real source locations.
Keyword (in Japanese) (See Japanese page) 
(in English) depression angle / sound localization / transaural method / 3/2 loudspeaker arrangement / floor reflection / mirror image method / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 240, EA2009-56, pp. 1-6, Oct. 2009.
Paper # EA2009-56 
Date of Issue 2009-10-15 (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 EA2009-56

Conference Information
Committee EA  
Conference Date 2009-10-22 - 2009-10-23 
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 2009-10-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sound localization accuracy versus depression angle in multichannel reproduction system 
Sub Title (in English)  
Keyword(1) depression angle  
Keyword(2) sound localization  
Keyword(3) transaural method  
Keyword(4) 3/2 loudspeaker arrangement  
Keyword(5) floor reflection  
Keyword(6) mirror image method  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuuki Tanaka  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
2nd Author's Name Haruhide Hokari  
2nd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
3rd Author's Name Shoji Shimada  
3rd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
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Speaker Author-1 
Date Time 2009-10-22 09:15:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2009-56 
Volume (vol) vol.109 
Number (no) no.240 
Page pp.1-6 
#Pages 6 
Date of Issue 2009-10-15 (EA) 

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