Paper Abstract and Keywords |
Presentation |
2015-11-12 13:00
Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation Irwansyah, Taira Onoguchi, Yoshifumi Chisaki (Kumamoto Univ.) EA2015-24 EMM2015-45 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recent studies have shown that the reflected sounds from nearby buildings affect the speech intelligibility of public address (PA) systems. Therefore, the PA system volumes and the loudspeaker directions should be adjusted to compensate for the effect of reflected sounds which can change over time due to building construction. This study aims at estimating the sound pressure levels (SPLs) of direct sound and reflected sounds that can be taken as a consideration before adjusting the PA systems. This paper proposes an approach for separating direct sound and reflected sounds that employs time-frequency information of a single-channel signal. This method consists of three steps: (1) the estimation of time difference of arrivals (TDOAs) between direct sound and reflected sounds, (2) the estimation of reflected-to-direct gain ratios (RDRs), and (3) the single-channel signal separation based on (1) and (2) in frequency domain. Numerical tests were conducted to evaluate the performance of the proposed method. The results show that the proposed method is able to separate direct sound and up to five reflected sounds as well as estimate its SPLs. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 302, EA2015-24, pp. 1-6, Nov. 2015. |
Paper # |
EA2015-24 |
Date of Issue |
2015-11-05 (EA, EMM) |
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) |
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EA2015-24 EMM2015-45 |
Conference Information |
Committee |
EA EMM |
Conference Date |
2015-11-12 - 2015-11-13 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kumamoto Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
Paper Information |
Registration To |
EA |
Conference Code |
2015-11-EA-EMM |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation |
Sub Title (in English) |
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Keyword(1) |
Sound pressure level |
Keyword(2) |
Single-channel signal |
Keyword(3) |
Direct sound |
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Reflected sound |
Keyword(5) |
Time difference of arrivals |
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1st Author's Name |
Irwansyah |
1st Author's Affiliation |
Kumamoto University (Kumamoto Univ.) |
2nd Author's Name |
Taira Onoguchi |
2nd Author's Affiliation |
Kumamoto University (Kumamoto Univ.) |
3rd Author's Name |
Yoshifumi Chisaki |
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Kumamoto University (Kumamoto Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-11-12 13:00:00 |
Presentation Time |
30 minutes |
Registration for |
EA |
Paper # |
EA2015-24, EMM2015-45 |
Volume (vol) |
vol.115 |
Number (no) |
no.302(EA), no.303(EMM) |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2015-11-05 (EA, EMM) |
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