| Presentation | 2020-10-02 A Study on Noise Correlation Matrix Estimation for Binaural Multichannel Wiener Filtering on Impact Noise Reduction Hajime Nakajima, Naoto Sasaoka, Yoshio Ito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In noisy acoustic environment, improving the speech intelligibility of hearing-impaired subjects is still a major research topic. Impact noise is a kind of noise whose occurrence timing is unknown and changes its amplitude steeply. In this paper, the Multi-channel Wiener Filter (MWF) for impact noise reduction for cochlear implants is studied. The MWF system can preserve the acoustic information of the speech because using the channel correlation matrix. In noise correlation matrix estimation, the noise power of reference microphone is occasionally negative. In this case, the MWF noise reduction provides poor performance. We propose the MWF for impact noise reduction system considering sign of estimated noise power to improve the noise reduction performance. From the result of computer simulation, the proposed system preserved the acoustic information of speech and delivered a high noise reduction performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Noise reduction / Impact noise / Acoustic information / MWF |
| Paper # | SIS2020-23 |
| Date of Issue | 2020-09-24 (SIS) |
| Conference Information | |
| Committee | SIS / ITE-BCT |
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| Conference Date | 2020/10/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | System Implementation Technology, Short Range Wireless Systems, Smart Multimedia Systems, Broadcasting Technology, etc. |
| Chair | Noriaki Suetake(Yamaguchi Univ.) / Kyoichi Saito(NHK) |
| Vice Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) / Naoto Sasaoka(Tottori Univ.) |
| Secretary | Tomoaki Kimura(Kindai Univ.) / Naoto Sasaoka(National Inst. of Tech., Ube College) / (NHK) |
| Assistant | Yukihiro Bandoh(NTT) / Soh Yoshida(Kansai Univ.) / Shigeki Shiokawa(Kanagawa Inst. of Tech.) / Shoichiro Sekiguchi(NHK) / Toshiharu Morizumi(NTT) / Toshimitsu Kobayashi(NBN) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems / Technical Group on Broadcasting and Communication Technologies |
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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 Noise Correlation Matrix Estimation for Binaural Multichannel Wiener Filtering on Impact Noise Reduction |
| Sub Title (in English) | |
| Keyword(1) | Noise reduction |
| Keyword(2) | Impact noise |
| Keyword(3) | Acoustic information |
| Keyword(4) | MWF |
| 1st Author's Name | Hajime Nakajima |
| 1st Author's Affiliation | Tottori University(Tottori Univ) |
| 2nd Author's Name | Naoto Sasaoka |
| 2nd Author's Affiliation | Tottori University(Tottori Univ) |
| 3rd Author's Name | Yoshio Ito |
| 3rd Author's Affiliation | Tottori University(Tottori Univ) |
| Date | 2020-10-02 |
| Paper # | SIS2020-23 |
| Volume (vol) | vol.120 |
| Number (no) | SIS-176 |
| Page | pp.pp.66-70(SIS), |
| #Pages | 5 |
| Date of Issue | 2020-09-24 (SIS) |