Paper Abstract and Keywords |
Presentation |
2017-01-31 13:30
Study on the basic properties of a micro-spaced microphone array Genya Shimizu, Kenji Ozawa, Masaaki Ito, Masanori Morise (Univ. Yamanashi), Shuichi Sakamoto (Tohoku Univ.) EMM2016-85 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Microphone arrays have been used to separate sound sources to improve speech recognition in a noisy environment. We propose a {it micro-spaced microphone array} in which image signal processing is used to achieve highly accurate sound source separation. A number of microphones are arranged on a straight line, and temporal sequences of the sound pressures obtained from the microphones are converted into sequences of luminance. These are arranged in parallel in an image, which is referred to as a spatio-temporal sound pressure distribution image.
The spatial spectrum of this image is obtained using a two-dimensional fast Fourier transform algorithm. In this spectrum, the angle of a line through the center denotes the arrival direction of sound, and the abscissa indicates its frequency. By extracting a line from the spectrum, the sound source can be separated. In this report the effects of parameters of the proposed array on the accuracy were observed by a computational experiment. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Micro-spaced microphone array / Spatio-temporal sound pressure distribution image / Image signal processing / two-dimensional FFT / Sound source separation / / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 449, EMM2016-85, pp. 67-72, Jan. 2017. |
Paper # |
EMM2016-85 |
Date of Issue |
2017-01-23 (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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EMM2016-85 |
Conference Information |
Committee |
EMM |
Conference Date |
2017-01-30 - 2017-01-31 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku University (Miyagi) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Sense of Presence, Universal Media, Digital Entertainment, etc. |
Paper Information |
Registration To |
EMM |
Conference Code |
2017-01-EMM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on the basic properties of a micro-spaced microphone array |
Sub Title (in English) |
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Keyword(1) |
Micro-spaced microphone array |
Keyword(2) |
Spatio-temporal sound pressure distribution image |
Keyword(3) |
Image signal processing |
Keyword(4) |
two-dimensional FFT |
Keyword(5) |
Sound source separation |
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1st Author's Name |
Genya Shimizu |
1st Author's Affiliation |
University of Yamanashi (Univ. Yamanashi) |
2nd Author's Name |
Kenji Ozawa |
2nd Author's Affiliation |
University of Yamanashi (Univ. Yamanashi) |
3rd Author's Name |
Masaaki Ito |
3rd Author's Affiliation |
University of Yamanashi (Univ. Yamanashi) |
4th Author's Name |
Masanori Morise |
4th Author's Affiliation |
University of Yamanashi (Univ. Yamanashi) |
5th Author's Name |
Shuichi Sakamoto |
5th Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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Speaker |
Author-2 |
Date Time |
2017-01-31 13:30:00 |
Presentation Time |
30 minutes |
Registration for |
EMM |
Paper # |
EMM2016-85 |
Volume (vol) |
vol.116 |
Number (no) |
no.449 |
Page |
pp.67-72 |
#Pages |
6 |
Date of Issue |
2017-01-23 (EMM) |
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