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| Presentation | 2012-10-27 14:15 [Poster Presentation] Study on method of estimating MTF-STI using generalized room impulse response Kyohei Sasaki, Masashi Unoki (JAIST)  EA2012-78 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The authors previously proposed a simplified method of blindly estimating speech transmission index (STI) in room acoustics based on the concept of the modulation transfer function (MTF). This method effectively estimates STI from the observed reverberant AM signal by estimating inverse MTF in which the room impulse response (RIR) is modeled as the Schroeder's artificial RIR. However, there is a problem that the method could not correctly estimate STI if the measured RIR could not be modeled as the Schroeder's RIR. This paper proposes a method of blindly estimating MTF/STI by assuming the modified Schroeder's RIR (generalized RIR) to solve the above problem. In the proposed method, MTF is estimated by estimating two parameters (reverberation time and the order of $n$) from the reverberant AM signal with two modulation frequency components. Generalized RIR is estimated from the estimated MTF. IEC 6026816:2003 is used to estimate STI from estimated MTFs. Simulations results revealed that the proposed method could be used to correctly estimate MTF/STI in comparison with the previous method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Modulation transfer function / Room impulse respons / Speech transmission index / Reverberation time / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 266, EA2012-78, pp. 79-84, Oct. 2012. | |
| Paper # | EA2012-78 | |
| Date of Issue | 2012-10-20 (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 | EA2012-78 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2012-10-27 - 2012-10-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | USHIDAKE resort (Toyama) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2012-10-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on method of estimating MTF-STI using generalized room impulse response |
| Sub Title (in English) | |
| Keyword(1) | Modulation transfer function |
| Keyword(2) | Room impulse respons |
| Keyword(3) | Speech transmission index |
| Keyword(4) | Reverberation time |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Kyohei Sasaki |
| 1st Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
| 2nd Author's Name | Masashi Unoki |
| 2nd Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
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| Speaker | Author-1 |
| Date Time | 2012-10-27 14:15:00 |
| Presentation Time | 210 minutes |
| Registration for | EA |
| Paper # | EA2012-78 |
| Volume (vol) | vol.112 |
| Number (no) | no.266 |
| Page | pp.79-84 |
| #Pages | 6 |
| Date of Issue | 2012-10-20 (EA) |
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