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| Presentation | 2010-11-19 09:45 Sound reproduction based on multi-channel inverse filtering and WFS Noriyoshi Kamado, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST)  EA2010-93 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For a reproduced sound field, the competing goals between the listening area and reproduction accuracy in an actual environment is one of the most important problems of sound field reproduction using loudspeakers. In this paper, we propose a new method to balance these goals with absolute accuracy using an inverse filter of the room acoustics, the null-space of the generalized inverse matrix which is given by a compensation filter of the wave field outside of the control-point. To develop the expression for the compensation filter, we use the loudspeaker driving function of wave field synthesis (WFS) instead of the filter of conventional studies. By using the WFS, the proposed method overcomes the compensation limitation of auditory distance and azimuth perception outside of the control-point. The results of computer simulations revealed that the proposed method balances these goals and has wide applicability in the spatial domain with high accuracy of reproduction for both free-field conditions and a simulation model with room reflection. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sound field reproduction / Multi-point control inverse filtering / Wave field synthesis / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 285, EA2010-93, pp. 55-60, Nov. 2010. | |
| Paper # | EA2010-93 | |
| Date of Issue | 2010-11-11 (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 | EA2010-93 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2010-11-18 - 2010-11-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2010-11-EA |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sound reproduction based on multi-channel inverse filtering and WFS |
| Sub Title (in English) | |
| Keyword(1) | Sound field reproduction |
| Keyword(2) | Multi-point control inverse filtering |
| Keyword(3) | Wave field synthesis |
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| 1st Author's Name | Noriyoshi Kamado |
| 1st Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 2nd Author's Name | Hiroshi Saruwatari |
| 2nd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 3rd Author's Name | Kiyohiro Shikano |
| 3rd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
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| Speaker | Author-1 |
| Date Time | 2010-11-19 09:45:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2010-93 |
| Volume (vol) | vol.110 |
| Number (no) | no.285 |
| Page | pp.55-60 |
| #Pages | 6 |
| Date of Issue | 2010-11-11 (EA) |
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