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| Presentation | 2010-10-21 16:15 Prediction Method of the Sound Pressure at the Eardrum in Dummy Head Toshio Kogasaka, Kenji Furihata (Shinshu Univ.)  EA2010-64 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Computer simulation of acoustic scenes is an important prerequisite of rendering. Technology for 3-D sound reproduction, the so-called “audio front end” or the “acoustic human-machine interface” is an essential component of VR systems, which must be capable of fulfilling high quality standards involving psycho-acoustically relevant cues. One of the factors that can affect the sound transmission in the ear is the sound pressure at the position of the eardrum. In order to find the absolute error of the sound pressure at the position of the eardrum using an artificial ear, the standardized method for the measurement of sound pressure reflectance in an acoustic tube was applied. It is based on the transfer function between two microphone locations in an impedance tube. The end of the tube representing the measurement plane was placed at the ear canal entrance of the artificial ear. From the results, it can be found that (a) the sound pressure reflectance of the eardrum of artificial ear can be determined in 100 Hz to 10 kHz, and (b) the sound pressure level at the position of the eardrum can be predicted with an error under 3 dB in 200 Hz to 4 kHz, and predicted with an error up to 7 dB in 200 Hz to 10 kHz. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Impedance tube / Two-microphone method / Sound pressure reflectance / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 239, EA2010-64, pp. 37-42, Oct. 2010. | |
| Paper # | EA2010-64 | |
| Date of Issue | 2010-10-14 (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 | EA2010-64 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2010-10-21 - 2010-10-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kanazawa-city Omi-cho Koryu Plaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2010-10-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Prediction Method of the Sound Pressure at the Eardrum in Dummy Head |
| Sub Title (in English) | |
| Keyword(1) | Impedance tube |
| Keyword(2) | Two-microphone method |
| Keyword(3) | Sound pressure reflectance |
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| 1st Author's Name | Toshio Kogasaka |
| 1st Author's Affiliation | Shinshu University (Shinshu Univ.) |
| 2nd Author's Name | Kenji Furihata |
| 2nd Author's Affiliation | Shinshu University (Shinshu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2010-10-21 16:15:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2010-64 |
| Volume (vol) | vol.110 |
| Number (no) | no.239 |
| Page | pp.37-42 |
| #Pages | 6 |
| Date of Issue | 2010-10-14 (EA) |
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