| Presentation | 2003/3/20 A study on the method of speech dereverberation based on the MTF concept Keigo SAKATA, Masashi UNOKI, Masato AKAGI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a speech dereverberation method without measuring the implulse response of room acoustics. In this model, the envelopes and carriers are decomposed from speech signal using a constant-bandwidths filterbank and then they are processed in each channel, respectively. About processing of the envelope dereverberation, we also use the power envelope inverse filtering method based on the MTF concept. This is improved to determine adequatly reverberant time even if long silence exist in. About processing of the carrier recovery, we use the method for regenerating carrier using the estimated fundemental frequency (F0) from the reverberant speech. In this paper, it is assumed that the F0 is known. The dereverberated speech signal is, then, reconstructed using filterbank from the dereverberated envelopes and the regenerated carriers. It was shown that the proposed method can dereverberante the reverberant speech accurately. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Modulation Transfer Function (MTF) / Power envelope inverse filtering / Reverberation time / Filter-bank |
| Paper # | SP2002-181 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2003/3/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Speech (SP) |
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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 the method of speech dereverberation based on the MTF concept |
| Sub Title (in English) | |
| Keyword(1) | Modulation Transfer Function (MTF) |
| Keyword(2) | Power envelope inverse filtering |
| Keyword(3) | Reverberation time |
| Keyword(4) | Filter-bank |
| 1st Author's Name | Keigo SAKATA |
| 1st Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology() |
| 2nd Author's Name | Masashi UNOKI |
| 2nd Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology |
| 3rd Author's Name | Masato AKAGI |
| 3rd Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology |
| Date | 2003/3/20 |
| Paper # | SP2002-181 |
| Volume (vol) | vol.102 |
| Number (no) | 749 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |