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| Presentation | 2008-03-07 14:30 Encoding of Large Microphone Array signals for Slective Listening Point Audio Representation based on Blind Source Separation Kenta Niwa, Takanori Nishino, Kazuya Takeda (Nagoya Univ.)  EA2007-120 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes a method of selective listening point-type acoustic field representation. An appreciation system that user can select a position can be developed by integrating with the technology of arbitrary viewpoint images. If a set of location and assembled signal concerned with the sound sources is estimated, the acoustic field is reproduced by convolving assembled signals and acoustic transfer functions that have a stereophony. Frequency-domain independent component analysis is utilized in estimation the source information. We propose a method of clustering all of the frequency components into a predetermined number of local spaces across all frequency bins. The reconstructed signal from the local spaces of frequency components called local signal mixture represents either a signal of one source or mixture of different source signals located in close positions. The sound filed made by six sound sources was captured using 48 distant-microphones in a soundproof chamber. As results of the subjective evaluation of X-A-B test, it is confirmed that the proposed algorithm can represent the original sound field. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Free viewpoint TV / Sound source separation / Frequency-domain ICA / Head related transfer function / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 532, EA2007-120, pp. 49-54, March 2008. | |
| Paper # | EA2007-120 | |
| Date of Issue | 2008-02-29 (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 | EA2007-120 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2008-03-07 - 2008-03-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NTT Musashino R&D Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Audio signal and speech processing, enhancement/General |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2008-03-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Encoding of Large Microphone Array signals for Slective Listening Point Audio Representation based on Blind Source Separation |
| Sub Title (in English) | |
| Keyword(1) | Free viewpoint TV |
| Keyword(2) | Sound source separation |
| Keyword(3) | Frequency-domain ICA |
| Keyword(4) | Head related transfer function |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Kenta Niwa |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Takanori Nishino |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 3rd Author's Name | Kazuya Takeda |
| 3rd Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-03-07 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2007-120 |
| Volume (vol) | vol.107 |
| Number (no) | no.532 |
| Page | pp.49-54 |
| #Pages | 6 |
| Date of Issue | 2008-02-29 (EA) |
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