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| Presentation | 2015-08-03 15:50 Multiple sound spots generation by spatial filtering in wavenumber domain using a linear loudspeaker array Takuma Okamoto (NICT), Atsushi Sakaguchi (Panasonic)  EA2015-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | An analytical method for generating acoustically bright and dark zones at arbitrary horizontal positions using a linear loudspeaker array was proposed. This method is based on the spatial Fourier transform and models sound pressures at the control line as a rectangular window corresponding to bright and dark zones. It is widely known that a rectangular window contains sidelobes. To improve the previous proposed method with high dynamic range, this paper introduces a cosine window, which contains less sidelobes, for modeling sound pressures instead of a conventional rectangular window. Computer simulation results show that the proposed method using a cosine window can control sound field more accurately than that using a simple rectangular window. In addition, a linear array of 64 loudspeakers was actually implemented and the measurement results show that the proposed methods outperform the conventional energy difference maximization method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | multizone / loudspeaker array / spatial Fourier transform / spatial filtering / window function / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 169, EA2015-15, pp. 29-34, Aug. 2015. | |
| Paper # | EA2015-15 | |
| Date of Issue | 2015-07-27 (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 | EA2015-15 |
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| Conference Information | |
| Committee | EA ASJ-H |
| Conference Date | 2015-08-03 - 2015-08-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ., Research Inst. of Electrical Communication |
| 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 | 2015-08-EA-H |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multiple sound spots generation by spatial filtering in wavenumber domain using a linear loudspeaker array |
| Sub Title (in English) | |
| Keyword(1) | multizone |
| Keyword(2) | loudspeaker array |
| Keyword(3) | spatial Fourier transform |
| Keyword(4) | spatial filtering |
| Keyword(5) | window function |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takuma Okamoto |
| 1st Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 2nd Author's Name | Atsushi Sakaguchi |
| 2nd Author's Affiliation | Panasonic Corporation (Panasonic) |
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| Speaker | Author-1 |
| Date Time | 2015-08-03 15:50:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2015-15 |
| Volume (vol) | vol.115 |
| Number (no) | no.169 |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2015-07-27 (EA) |
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