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Paper Abstract and Keywords
Presentation 2019-08-08 14:40
Moving sound source for sound field rendering
Takao Tsuchiya (Doshisha Univ.), Masashi Kanamori, Takashi Takahashi (JAXA) EA2019-26
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, the implementation of moving sound source in the sound field rendering is discussed. To implement the moving sound source in the FDTD method, which is generally used in the sound field rendering, the direct method and
the convolution method are proposed. In the direct method, an instantaneous source waveform is directly radiated from grid points on the moving path at each time step in sequence. In the convolution method, all impulse responses are calculated beforehand from grid points on the moving path of the sound source, then they are convoluted by switching with the movement of the sound source. The formulations and numerical experiments are made for the two-dimensional sound field, and the accuracy of the direct method and the convolution method are compared. It is found as a result that the direct method and the convolution method have the same accuracy, and the convolution method has the advantage that the calculation time is shorter than the direct method, and the source waveform and moving speed can be freely changed at the time of convolution.
Keyword (in Japanese) (See Japanese page) 
(in English) sound field rendering / moving sound source / Doppler effect / FDTD method / convolution / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 163, EA2019-26, pp. 21-26, Aug. 2019.
Paper # EA2019-26 
Date of Issue 2019-08-01 (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)
Download PDF EA2019-26

Conference Information
Committee EA ASJ-H  
Conference Date 2019-08-08 - 2019-08-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2019-08-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Moving sound source for sound field rendering 
Sub Title (in English)  
Keyword(1) sound field rendering  
Keyword(2) moving sound source  
Keyword(3) Doppler effect  
Keyword(4) FDTD method  
Keyword(5) convolution  
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Keyword(8)  
1st Author's Name Takao Tsuchiya  
1st Author's Affiliation Doshisha Umiversity (Doshisha Univ.)
2nd Author's Name Masashi Kanamori  
2nd Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
3rd Author's Name Takashi Takahashi  
3rd Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
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Speaker Author-1 
Date Time 2019-08-08 14:40:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2019-26 
Volume (vol) vol.119 
Number (no) no.163 
Page pp.21-26 
#Pages 6 
Date of Issue 2019-08-01 (EA) 

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