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| Presentation | 2011-07-23 09:55 Constrained Spectrum Generation for Mixed Sound Analysis Based on Probabilistic Spectrum Envelope Toru Nakashika, Tetsuya Takiguchi, Yasuo Ariki (Kobe Univ.)  SP2011-50 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | NMF (Non-negative matrix factorization) has been one of the most widely-used techniques for signal analysis in recent years. In particular, the supervised type of NMF is garnering much attention in source separation or signal analysis with respect to the analysis accuracy and speed. Because such methods require all the possible samples for the analysis, it is hard to build a practical analysis system. To analyze signals properly even when short of samples, we proposed a probabilistic approach called PSE (probabilistic spectrum envelope) so far, in which spectrum envelopes belonging to an auditory category are randomly generated, and the spectrum is used as a part of supervised basis matrix of NMF. However, this method has a difficulty in obtaining the optimum solution due to a lot of flexibility. In this paper, we propose a new PSE method with sparseness and density constraints which efficiently lead to the more appropriate solution. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | signal analysis / source separation / supervised-NMF / probabilistic spectrum envelope / Gaussian process / sparseness / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 153, SP2011-50, pp. 51-56, July 2011. | |
| Paper # | SP2011-50 | |
| Date of Issue | 2011-07-14 (SP) | |
| 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 | SP2011-50 |
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| Conference Information | |
| Committee | SP |
| Conference Date | 2011-07-21 - 2011-07-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Jozankei Grand Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2011-07-SP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Constrained Spectrum Generation for Mixed Sound Analysis Based on Probabilistic Spectrum Envelope |
| Sub Title (in English) | |
| Keyword(1) | signal analysis |
| Keyword(2) | source separation |
| Keyword(3) | supervised-NMF |
| Keyword(4) | probabilistic spectrum envelope |
| Keyword(5) | Gaussian process |
| Keyword(6) | sparseness |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Toru Nakashika |
| 1st Author's Affiliation | Kobe University (Kobe Univ.) |
| 2nd Author's Name | Tetsuya Takiguchi |
| 2nd Author's Affiliation | Kobe University (Kobe Univ.) |
| 3rd Author's Name | Yasuo Ariki |
| 3rd Author's Affiliation | Kobe University (Kobe Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-07-23 09:55:00 |
| Presentation Time | 25 minutes |
| Registration for | SP |
| Paper # | SP2011-50 |
| Volume (vol) | vol.111 |
| Number (no) | no.153 |
| Page | pp.51-56 |
| #Pages | 6 |
| Date of Issue | 2011-07-14 (SP) |
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