| Presentation | 2014-01-28 A study on dereverberation method using adaptive filter Hiroshi KISHIDA, Kensaku FUJII, Mitsuji MUNEYASU, Masakazu MORIMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a two microphone array system capable of blind dereverberation even in non-minimum phase acoustic space. The array system has the feature that the characteristics of speech signal does not influence the estimation of acoustic paths from a talker to two microphones . In this study, we apply the equation error method to the acoustic path estimation. A problem is that the common error is included in the two acoustic paths estimated by using the equation error method. In this study, we reduce the common error by applying the normalized least mean square (NLMS) algorithm with exponentially decayed step size to the estimation. Moreover, we produce the dereverberation inverse filters by utilizing the adaptive filter system performing MINT method. The inverse matrix operation thereby becomes unnecessary. Finally, we verify the performance of the proposed method by the simulation applying a speech signal noise to the sound source. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | non-minimum phase / microphone array / equation error method / inverse filter / common error |
| Paper # | EA2013-113 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2014/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | A study on dereverberation method using adaptive filter |
| Sub Title (in English) | |
| Keyword(1) | non-minimum phase |
| Keyword(2) | microphone array |
| Keyword(3) | equation error method |
| Keyword(4) | inverse filter |
| Keyword(5) | common error |
| 1st Author's Name | Hiroshi KISHIDA |
| 1st Author's Affiliation | Graduate School of Engineering, University of Hyogo() |
| 2nd Author's Name | Kensaku FUJII |
| 2nd Author's Affiliation | Graduate School of Engineering, University of Hyogo |
| 3rd Author's Name | Mitsuji MUNEYASU |
| 3rd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 4th Author's Name | Masakazu MORIMOTO |
| 4th Author's Affiliation | Graduate School of Engineering, University of Hyogo |
| Date | 2014-01-28 |
| Paper # | EA2013-113 |
| Volume (vol) | vol.113 |
| Number (no) | 413 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |