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Paper Abstract and Keywords
Presentation 2013-08-09 13:30
Sound field rendering using surrounding microphone and loudspeaker arrays
Takao Tsuchiya (Doshisha Univ.), Yukio Iwaya (Tohoku Gakuin Univ.), Makoto Otani (Shinshu Univ.), Yasushi Inoguchi (JAIST) EA2013-57
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, the sound field rendering using the surrounding microphone
and the loudspeaker arrays is applied to the auralization. It is easy to record ultra multi-channel contents virtually with the sound field rendering. The interpolated wideband (IWB) scheme which is one of the compact explicit finite difference time domain (CE-FDTD) methods is applied to the sound field rendering, and is implemented on the GPU cluster system. First, the subjective evaluation on the distance and directivity of sound source was carried out to examine the validity of the sound field rendering. Some demonstrations were performed for the numerical model of a concert hall with the volume capacity of 4,500 m$^3$ and the sampling frequency of 40 kHz. The calculated impulse responses were convolved with a soprano song, then they were reproduced by the 157ch surrounding loudspeaker array system. It is confirmed that listeners could perceive a part of rendered distance when the directivity of the sound source was rendered. The actual directivity of the sound source was next included to the sound field rendering by using the multi-channel contents recorded by the 157ch surrounding microphone array. It is confirmed that the realistic auralization can be realized including the directivity of the sound source.
Keyword (in Japanese) (See Japanese page) 
(in English) sound field rendering / CE-FDTD method / IWB method / surrounding loudspeaker array / surrounding microphone array / graphics processing unit cluster / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 177, EA2013-57, pp. 23-28, Aug. 2013.
Paper # EA2013-57 
Date of Issue 2013-08-02 (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 EA2013-57

Conference Information
Committee EA  
Conference Date 2013-08-09 - 2013-08-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic Signal Processing, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2013-08-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sound field rendering using surrounding microphone and loudspeaker arrays 
Sub Title (in English)  
Keyword(1) sound field rendering  
Keyword(2) CE-FDTD method  
Keyword(3) IWB method  
Keyword(4) surrounding loudspeaker array  
Keyword(5) surrounding microphone array  
Keyword(6) graphics processing unit cluster  
Keyword(7)  
Keyword(8)  
1st Author's Name Takao Tsuchiya  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Yukio Iwaya  
2nd Author's Affiliation Tohoku Gakuin University (Tohoku Gakuin Univ.)
3rd Author's Name Makoto Otani  
3rd Author's Affiliation Shinshu University (Shinshu Univ.)
4th Author's Name Yasushi Inoguchi  
4th Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
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Speaker Author-1 
Date Time 2013-08-09 13:30:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2013-57 
Volume (vol) vol.113 
Number (no) no.177 
Page pp.23-28 
#Pages 6 
Date of Issue 2013-08-02 (EA) 

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