| Presentation | 2010-12-10 Diffuse noise robust multiple source localization based on noise reduction in covariance matrix domain Nobutaka ITO, Emmanuel VINCENT, Nobutaka ONO, Remi GRIBONVAL, Shigeki SAGAYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a method for estimating the azimuths of multiple sound sources accurately even in the presence of diffuse noise. MUSIC (MUltiple SIgnal Classification) for the estimation of the azimuths of multiple sources is robust against spatially white noise but the estimation perftrmance degrades in the presence of diffuse noise. Based on a low-rank assumption on the covariance matrix of directional signals and the assumption that the covariance matrix of diffuse noise belongs to a subspace in a matrix space, the proposed method estimates the covariance matrix of the directional signals and applies MUSIC to the estimated matrix. The subspace model on the covariance matrix of diffuse noise includes as special cases noise models such as spatially uncorrelated noise, noise with a given coherence matrix, and isotropic noise observed with a crystal array. We showed through experiments with real-world noise recordings that the proposed method estimated the azimuths of multiple sources more accurately than the conventional MUSIC. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Source localization / covariance matrix / microphone arrays / MUSIC / diffuse noise |
| Paper # | EA2010-102 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2010/12/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | Diffuse noise robust multiple source localization based on noise reduction in covariance matrix domain |
| Sub Title (in English) | |
| Keyword(1) | Source localization |
| Keyword(2) | covariance matrix |
| Keyword(3) | microphone arrays |
| Keyword(4) | MUSIC |
| Keyword(5) | diffuse noise |
| 1st Author's Name | Nobutaka ITO |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo() |
| 2nd Author's Name | Emmanuel VINCENT |
| 2nd Author's Affiliation | INRIA, Centre de Rennes-Bretagne Atlantique |
| 3rd Author's Name | Nobutaka ONO |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| 4th Author's Name | Remi GRIBONVAL |
| 4th Author's Affiliation | INRIA, Centre de Rennes-Bretagne Atlantique |
| 5th Author's Name | Shigeki SAGAYAMA |
| 5th Author's Affiliation | Graduate School of Information Science and Technology, the University of Tokyo |
| Date | 2010-12-10 |
| Paper # | EA2010-102 |
| Volume (vol) | vol.110 |
| Number (no) | 331 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |