| Presentation | 2000/9/22 Blind Source Separation for Acoustic Signals Using Subspace Method and Frequency Domain Infomax Michiaki Ogawa, Futoshi Asano, Shiro Ikeda, Hideki Asoh, Nobuhiko Kitawaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, two array signal processing techniques are introduced to the blind separation of acoustic signals to enhance the signal separation performance of the independent component analysis(ICA). The first technique is the subspace method which reduces the effect of room reflection when the system is used in a room. Room reflection is one of the biggest problem in blind signal separation(BSS)in acoustic environment. The second one is the method of solving permutation called IFC(Inter-Frequency Coherency). In this method, a physical property of the mixing matrix, i.e., the coherency in the adjacent frequencies is utilized to solve the permutation. The experiments in a meeting room show that the subspace method improved the score of the automatic speech recogntion by 18% and the method of solving permutation reduced the error in the automatic speech recognition to 4%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Blind Source Separation / Subspace Method / Reflection / Coherency / Permutation |
| Paper # | EA2000-50 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2000/9/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blind Source Separation for Acoustic Signals Using Subspace Method and Frequency Domain Infomax |
| Sub Title (in English) | |
| Keyword(1) | Blind Source Separation |
| Keyword(2) | Subspace Method |
| Keyword(3) | Reflection |
| Keyword(4) | Coherency |
| Keyword(5) | Permutation |
| 1st Author's Name | Michiaki Ogawa |
| 1st Author's Affiliation | University of Tsukuba() |
| 2nd Author's Name | Futoshi Asano |
| 2nd Author's Affiliation | Electrotechnical Laboratory |
| 3rd Author's Name | Shiro Ikeda |
| 3rd Author's Affiliation | PRESTO, JST |
| 4th Author's Name | Hideki Asoh |
| 4th Author's Affiliation | Electrotechnical Laboratory |
| 5th Author's Name | Nobuhiko Kitawaki |
| 5th Author's Affiliation | University of Tsukuba |
| Date | 2000/9/22 |
| Paper # | EA2000-50 |
| Volume (vol) | vol.100 |
| Number (no) | 329 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |