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| Presentation | 2018-03-20 09:00 [Poster Presentation] A study on suitable modulation parameters for spectral peak noise reduction based on frequency modulated carrier in parametric loudspeaker Kairi Mori, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura (Ritsumeikan Univ.)  EA2017-151 SIP2017-160 SP2017-134 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the conventional modulation method using a parametric loudspeaker, a resonance frequency of an ultrasonic element is used as the carrier frequency of an amplitude modulated wave. However, by emitting the amplitude modulated wave for a long time, fatigue failure of the element causes, a spectral peak noise also occurs. Thus we proposed the noise reduction method to design the amplitude modulated wave with the frequency modulated carrier wave. Finally, we evaluated noise reduction performance through objective evaluation experiments on the sound pressure of the noise. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Parametric loudspeaker / Fatigue fracture / Spectral peak noise / Frequency modulated carrier wave / Noise reduction / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 515, EA2017-151, pp. 275-276, March 2018. | |
| Paper # | EA2017-151 | |
| Date of Issue | 2018-03-12 (EA, SIP, SP) | |
| 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 | EA2017-151 SIP2017-160 SP2017-134 |
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| Conference Information | |
| Committee | SIP EA SP MI |
| Conference Date | 2018-03-19 - 2018-03-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2018-03-SIP-EA-SP-MI |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on suitable modulation parameters for spectral peak noise reduction based on frequency modulated carrier in parametric loudspeaker |
| Sub Title (in English) | |
| Keyword(1) | Parametric loudspeaker |
| Keyword(2) | Fatigue fracture |
| Keyword(3) | Spectral peak noise |
| Keyword(4) | Frequency modulated carrier wave |
| Keyword(5) | Noise reduction |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kairi Mori |
| 1st Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name | Takahiro Fukumori |
| 2nd Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name | Masato Nakayama |
| 3rd Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 4th Author's Name | Takanobu Nishiura |
| 4th Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker | Author-1 |
| Date Time | 2018-03-20 09:00:00 |
| Presentation Time | 90 minutes |
| Registration for | EA |
| Paper # | EA2017-151, SIP2017-160, SP2017-134 |
| Volume (vol) | vol.117 |
| Number (no) | no.515(EA), no.516(SIP), no.517(SP) |
| Page | pp.275-276 |
| #Pages | 2 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |
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