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| Presentation | 2009-11-20 13:00 A Study of inpression evaluation of accelerating car interior noise using brain magnetic fields Shunsuke Ishimitsu (Hiroshima City Univ.), Kenji Takami (Univ. of Hyogo), Manabu Yamamoto (Hiroshima City Univ.), Seiji Nakagawa, Yoshiharu Soeta (AIST)  EA2009-89 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The production concept of car engine sounds has evolved from one of noise reduction to one of sound design. Auditory impressions have been examined from a psychological point of view. However, it is difficult to gain a full understanding of the issue using this approach alone. Thus, we investigated the relationships between subjective preference and brain magnetic fields for accelerating car interior noise. First, harmonic complex tones that simulate acceleration noise were used as stimuli. Subjective evaluations were examined using the semantic differential (SD) method and neuronal activities of the auditory cortex evoked by these stimuli were measured by magnetoencephalography (MEG). The results indicated that has a significant effect on subjective impressions and on neuronal activities of the auditory cortex. Second, the acceleration noise was measured with an in-line 4-cylinder engine and harmonic complex tones that simulate acceleration noise used as the stimuli. Subjective evaluations were examined using the paired-comparison method. At the same time, the MEG alpha-waves range (8-13 Hz) measurements were made and analyzed using the ACF (autocorrelation function). The results indicate that the effective duration of the ACF of the MEGs of between 8 and 13 Hz lengthens after the presentation of a preferred sound. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sound design / Semantic defferencial method / Magnetoencephalography / Car interior Noise / N1m / Alpha wave / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 286, EA2009-89, pp. 79-84, Nov. 2009. | |
| Paper # | EA2009-89 | |
| Date of Issue | 2009-11-12 (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 | EA2009-89 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2009-11-19 - 2009-11-20 |
| 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 | 2009-11-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of inpression evaluation of accelerating car interior noise using brain magnetic fields |
| Sub Title (in English) | |
| Keyword(1) | Sound design |
| Keyword(2) | Semantic defferencial method |
| Keyword(3) | Magnetoencephalography |
| Keyword(4) | Car interior Noise |
| Keyword(5) | N1m |
| Keyword(6) | Alpha wave |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shunsuke Ishimitsu |
| 1st Author's Affiliation | Hiroshima City University (Hiroshima City Univ.) |
| 2nd Author's Name | Kenji Takami |
| 2nd Author's Affiliation | University of Hyogo (Univ. of Hyogo) |
| 3rd Author's Name | Manabu Yamamoto |
| 3rd Author's Affiliation | Hiroshima City University (Hiroshima City Univ.) |
| 4th Author's Name | Seiji Nakagawa |
| 4th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 5th Author's Name | Yoshiharu Soeta |
| 5th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
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| Speaker | Author-1 |
| Date Time | 2009-11-20 13:00:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2009-89 |
| Volume (vol) | vol.109 |
| Number (no) | no.286 |
| Page | pp.79-84 |
| #Pages | 6 |
| Date of Issue | 2009-11-12 (EA) |
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