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| Presentation | 2007-06-29 14:15 Fast Blind Source Separation Based on Frequency Subband Interpolation by Null Beamformer Keiichi Osako, Yoshimitsu Mori, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST)  EA2007-31 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The slow convergence of the optimization of the separation filters is a problem in blind source separation (BSS) based on independent component analysis (ICA). We propose a new algorithm for BSS approach that combines ICA and frequency subband beamforming interpolation. The proposed method consists of the following three parts: (i) a frequency subband selector part for learning ICA, (ii) a frequency domain ICA part for selected frequency bins, and (iii) an interpolation part using null beamforming constructed with the estimated directions of arrival of sound sources. The results of the signal separation experiments under reverberant condition reveal that the separation performance and the convergence speed of the proposed method are superior to those of the conventional ICA-based BSS methods. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Blind source separation / independent component analysis / null beamforming / DOA estimation / acoustic signal processing / speech enhancement / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 120, EA2007-31, pp. 25-30, June 2007. | |
| Paper # | EA2007-31 | |
| Date of Issue | 2007-06-22 (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 | EA2007-31 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2007-06-29 - 2007-06-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Blind signal processing / General |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2007-06-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fast Blind Source Separation Based on Frequency Subband Interpolation by Null Beamformer |
| Sub Title (in English) | |
| Keyword(1) | Blind source separation |
| Keyword(2) | independent component analysis |
| Keyword(3) | null beamforming |
| Keyword(4) | DOA estimation |
| Keyword(5) | acoustic signal processing |
| Keyword(6) | speech enhancement |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Keiichi Osako |
| 1st Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 2nd Author's Name | Yoshimitsu Mori |
| 2nd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 3rd Author's Name | Hiroshi Saruwatari |
| 3rd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 4th Author's Name | Kiyohiro Shikano |
| 4th Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
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| Speaker | Author-1 |
| Date Time | 2007-06-29 14:15:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2007-31 |
| Volume (vol) | vol.107 |
| Number (no) | no.120 |
| Page | pp.25-30 |
| #Pages | 6 |
| Date of Issue | 2007-06-22 (EA) |
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