| Presentation | 2015-11-13 Spatial post-filter estimation in environment of multiple noise with different spatial characteristics. Mizuki Ohno, Akitoshi Kataoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Beamformer and Wiener post-filter has been proposed as array signal processing technique to emphasize the target signal in noisy environment. In directional noise environment, the target signal can be emphasized by giving directivity in the direction of the target source by using beamformer. On the other hand, in diffuse noise environment,the target signal is emphasized by Wiener-post-filter applying in the beamformer output. However, In directional/diffuse noise environment, Performance of both beamformer and Wiener post-filter is reduced. In this paper, we propose a method for suppressing directional noise and diffuse noise at the same time, developing robust Wiener post-filter in diffuse noise environment using spatial cross-spectrum estimation. Using spatial cross-spectral estimation, we estimate the target signal, diffuse noise and directional noise with high accuracy based on difference in spatial characteristics of sound source. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microphone array / directional noise suppression / diffuse noise suppression / beamformer / Wiener post-filter |
| Paper # | EA2015-37,EMM2015-58 |
| Date of Issue | 2015-11-05 (EA, EMM) |
| Conference Information | |
| Committee | EA / EMM |
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| Conference Date | 2015/11/12(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Akinori Ito(Tohoku Univ.) |
| Vice Chair | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Masashi Unoki(JAIST) / Masaki Kawamura(Yamaguchi Univ.) |
| Secretary | Yukio Iwaya(NTT) / Mitsunori Mizumachi(KDDI R&D Labs.) / Masashi Unoki(Univ. of Electro-Comm.) / Masaki Kawamura(Nagasaki Univ.) |
| Assistant | Shoichi Koyama(Univ. of Tokyo) / Motoi Iwata(Osaka Pref. Univ.) / Kazuhiro Kohno(Kansai Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Enriched MultiMedia |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spatial post-filter estimation in environment of multiple noise with different spatial characteristics. |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | directional noise suppression |
| Keyword(3) | diffuse noise suppression |
| Keyword(4) | beamformer |
| Keyword(5) | Wiener post-filter |
| 1st Author's Name | Mizuki Ohno |
| 1st Author's Affiliation | Ryukoku Univercity(Ryukoku Univ.) |
| 2nd Author's Name | Akitoshi Kataoka |
| 2nd Author's Affiliation | Ryukoku Univercity(Ryukoku Univ.) |
| Date | 2015-11-13 |
| Paper # | EA2015-37,EMM2015-58 |
| Volume (vol) | vol.115 |
| Number (no) | EA-302,EMM-303 |
| Page | pp.pp.75-80(EA), pp.75-80(EMM), |
| #Pages | 6 |
| Date of Issue | 2015-11-05 (EA, EMM) |