| Presentation | 2018-03-20 Speech Dereverberation Based on Recursive Weighted Prediction Error Takehiko Kagoshima, Ui-Hyun Kim, Masami Akamine, |
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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 based on recursive wighted prediction error (RWPE) for a moving average (MA) model of reverberation observed by a single distant microphone. We estimate an infinite impulse response (IIR) filter for inverse filtering based on a maximum likelihood criterion on a time-varying Gaussian speech model. To make the IIR filter stable, we propose an iterative process of avoiding recursive filtering at the current processing time. We compared the proposed RWPE method with a dereverberation method based on weighted prediction error (WPE) in an application to an in-house automatic speech recognition (ASR) system. The WPE method is known to be an effective method when using multi-channel microphones. However, it mismatches the MA observation model when using a single-channel microphone. Experimental results using simulated reverberant speech reveal that the proposed method achieves a better performance than the WPE method in terms of the accuracy of speech recognition. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dereverberation / speech recognition / inverse filtering / speech enhancement |
| Paper # | EA2017-169,SIP2017-178,SP2017-152 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |
| Conference Information | |
| Committee | SIP / EA / SP / MI |
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| Conference Date | 2018/3/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] |
| Chair | Masahiro Okuda(Univ. of Kitakyushu) / Suehiro Shimauchi(NTT) / Yoichi Yamashita(Ritsumeikan Univ.) / Kensaku Mori(Nagoya Univ.) |
| Vice Chair | Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) / Mitsunori Mizumachi(Kyutech) / Hiroki Mori(Utsunomiya Univ.) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) |
| Secretary | Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) / Mitsunori Mizumachi(Akita Pref. Univ.) / Hiroki Mori(Shizuoka Inst. of Science and Tech.) / Yoshiki Kawata(Shizuoka Univ.) / Yuichi Kimura(Meijo Univ.) |
| Assistant | Masayoshi Nakamoto(Hiroshima Univ.ひろ) / TREVINO Jorge(Tohoku Univ.) / Nobutaka Ito(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Satoshi Kobashikawa(NTT) / Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing / Technical Committee on Engineering Acoustics / Technical Committee on Speech / Technical Committee on Medical Imaging |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Speech Dereverberation Based on Recursive Weighted Prediction Error |
| Sub Title (in English) | |
| Keyword(1) | Dereverberation |
| Keyword(2) | speech recognition |
| Keyword(3) | inverse filtering |
| Keyword(4) | speech enhancement |
| 1st Author's Name | Takehiko Kagoshima |
| 1st Author's Affiliation | Toshiba Corporation(Toshiba) |
| 2nd Author's Name | Ui-Hyun Kim |
| 2nd Author's Affiliation | Toshiba Corporation(Toshiba) |
| 3rd Author's Name | Masami Akamine |
| 3rd Author's Affiliation | Toshiba Corporation(Toshiba) |
| Date | 2018-03-20 |
| Paper # | EA2017-169,SIP2017-178,SP2017-152 |
| Volume (vol) | vol.117 |
| Number (no) | EA-515,SIP-516,SP-517 |
| Page | pp.pp.367-372(EA), pp.367-372(SIP), pp.367-372(SP), |
| #Pages | 6 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |