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| Presentation | 2009-07-17 15:00 Comparison of Wavefront Synthesized by Directly-Aligned Multi-Point Controlled Wavefront Synthesis and Wave Field Synthesis Noriyoshi Kamado (Nara Inst. of Sci and Tech.), Haruhide Hokari, Shoji Shimada (Nagaoka Univ. of Tech.), Hiroshi Saruwatari, Kiyohiro Shikano (Nara Inst. of Sci and Tech.)  EA2009-40 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we address a comparative study on Directly-Aligned Multi-Point Controlled Wavefront Synthesis (DMCWS by Ohno et al.) and Wave Field Synthesis (WFS by Barkhout et al.) for realization of high-accuracy sound reproduction system, where amplitude, phase and attenuation characteristics of the wavefronts generated by DWCWS and WFS are assessed. First, in DMCWS, we can derive an optimal control line coordinate based on a numerical analysis. Next, the results of computer simulations reveal that the wavefront of DMCWS has wide availability in both spatial and frequency domains with few amplitude and phase errors, especially beyond the spatial aliasing frequency in WFS. Finally we can point out that the amplitude error of DMCWS has similar behavior to well-known spatial decay approximation expression of WFS; this implies an easiness in handling the amplitude error estimation of DMCWS. From these findings, we can conclude an advantageous position of DMCWS compared with WFS. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | wavefront synthesis / wave field synthesis / multip-point control / attenuation error / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 136, EA2009-40, pp. 19-24, July 2009. | |
| Paper # | EA2009-40 | |
| Date of Issue | 2009-07-10 (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 | EA2009-40 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2009-07-17 - 2009-07-17 |
| 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 | 2009-07-EA |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Comparison of Wavefront Synthesized by Directly-Aligned Multi-Point Controlled Wavefront Synthesis and Wave Field Synthesis |
| Sub Title (in English) | |
| Keyword(1) | wavefront synthesis |
| Keyword(2) | wave field synthesis |
| Keyword(3) | multip-point control |
| Keyword(4) | attenuation error |
| Keyword(5) | |
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| 1st Author's Name | Noriyoshi Kamado |
| 1st Author's Affiliation | Nara Institute of Science and Technology (Nara Inst. of Sci and 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.) |
| 4th Author's Name | Hiroshi Saruwatari |
| 4th Author's Affiliation | Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.) |
| 5th Author's Name | Kiyohiro Shikano |
| 5th Author's Affiliation | Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.) |
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| Speaker | Author-1 |
| Date Time | 2009-07-17 15:00:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2009-40 |
| Volume (vol) | vol.109 |
| Number (no) | no.136 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2009-07-10 (EA) |
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