| Presentation | 2015-11-12 Low delay binaural wind noise cancellation for hearing aids Yoh-ichi Fujisaka, Ryousuke Kouyama, Hidetoshi Nakashima, Nobuhiko Hiruma, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Wind noise is often an issue of hearing aid in outdoor. Generally a windproof is utilized to reduce the noise by attaching to the microphone. However, for hearing aids, the wind noise is reduced by signal processing since it is hard to attach the windproof to the microphone. We have proposed wind noise reduction algorithm for binaural hearing aids system that preserves binaural hearing information. This algorithm requires 32ms frame length in order to high frequency resolution for wind noise detection. On the other hand, tolerable delay time for hearing aids is 6ms approximately. Therefore, some improvement in the algorithm is required for low delay time and effective wind noise reduction. In this paper, we proposed low delay binaural wind noise cancellation algorithm using frequency warped filter. Delay time caused by this algorithm is shorter than the tolerable one, while frequency resolution in low frequency range is the same as one of our previous method. As results of subjective experiments, proposed method gives almost the same score as the conventional high-pass filter method for directionality of the output signal. Meanwhile, externality by the proposed method is superior to by the conventional one. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hearing aids / Wind noise cancellation / HRTF / Low delay / Frequency warping |
| Paper # | EA2015-30,EMM2015-51 |
| 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) | Low delay binaural wind noise cancellation for hearing aids |
| Sub Title (in English) | |
| Keyword(1) | Hearing aids |
| Keyword(2) | Wind noise cancellation |
| Keyword(3) | HRTF |
| Keyword(4) | Low delay |
| Keyword(5) | Frequency warping |
| 1st Author's Name | Yoh-ichi Fujisaka |
| 1st Author's Affiliation | RION Co., Ltd.(RION) |
| 2nd Author's Name | Ryousuke Kouyama |
| 2nd Author's Affiliation | National Institute of Technology, Kumamoto College(NIT, Kumamoto College) |
| 3rd Author's Name | Hidetoshi Nakashima |
| 3rd Author's Affiliation | National Institute of Technology, Kumamoto College(NIT, Kumamoto College) |
| 4th Author's Name | Nobuhiko Hiruma |
| 4th Author's Affiliation | RION Co., Ltd.(RION) |
| Date | 2015-11-12 |
| Paper # | EA2015-30,EMM2015-51 |
| Volume (vol) | vol.115 |
| Number (no) | EA-302,EMM-303 |
| Page | pp.pp.35-40(EA), pp.35-40(EMM), |
| #Pages | 6 |
| Date of Issue | 2015-11-05 (EA, EMM) |