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Paper Abstract and Keywords
Presentation 2020-07-20 13:25
Multichannel NMF using cluster analysis and weighted average
Tsuyoshi Yamamoto, Singo Uenohara, Kenichi Furuya (Oita Univ) EA2020-2
Abstract (in Japanese) (See Japanese page) 
(in English) Herein, we propose a sound source separation method using multi-channel non-negative matrix factorization (MNMF). MNMF uses an iterative update algorithm for decomposing observed signals into sound source components. However, the separation accuracy of MNMF considerably depends on the initial value of the iterative update algorithm. In the proposed method, cluster analysis and multidimensional scaling were conducted using the features of the matrix decomposed by multiple initial values. A plurality of separated signals was obtained using the initial values included in the largest cluster, which were weighted and averaged. The distance between the matrices obtained by the multidimensional scaling method was used as the weight. As a result of the experiment, we found that the separation signal obtained using the proposed method is less dependent on the initial value and that the separation accuracy is improved.
Keyword (in Japanese) (See Japanese page) 
(in English) sound source separation / MNMF / cluster analysis / weighted average / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 118, EA2020-2, pp. 7-12, July 2020.
Paper # EA2020-2 
Date of Issue 2020-07-13 (EA) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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Conference Information
Committee EA ASJ-H  
Conference Date 2020-07-20 - 2020-07-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Psychological and Physiological Acoustics, Musical Acoustics, Education in Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2020-07-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multichannel NMF using cluster analysis and weighted average 
Sub Title (in English)  
Keyword(1) sound source separation  
Keyword(2) MNMF  
Keyword(3) cluster analysis  
Keyword(4) weighted average  
1st Author's Name Tsuyoshi Yamamoto  
1st Author's Affiliation Oita University (Oita Univ)
2nd Author's Name Singo Uenohara  
2nd Author's Affiliation Oita University (Oita Univ)
3rd Author's Name Kenichi Furuya  
3rd Author's Affiliation Oita University (Oita Univ)
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Date Time 2020-07-20 13:25:00 
Presentation Time 25 
Registration for EA 
Paper # IEICE-EA2020-2 
Volume (vol) IEICE-120 
Number (no) no.118 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-EA-2020-07-13 

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