| Presentation | 2018-01-23 [Poster Presentation] Filter design for the spatial sampling using beam-forming Takuma Oono, Kanji Watanabe, Masayuki Nishiguchi, Shouichi Takane, Koji Abe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This study is aiming at the realization of spatial sound acquisition and reproduction system that can reproduce a certain sound field in another space. In our proposed method,first of all,the sound acquisition with directivity is achieved by beam-forming. This processing is aplied over whole directions cyclopaedically to obtain the sound signal which propagate from each direction. Then, the binaural signals are synthesized by summation of all signals. Each of these signals obtained by beam-forming is convoluted with the HRTF corresponding to the source directions. In the proposed spatial sound acquisition and reproduction system, each beam is weighted so that the gains of the beam are constant regardless of the frequency. In this paper, we conducted objective and subjective evaluation to verify the effect of the weighting. The results shows that the sound field with one source was reproduced accurately by weighting, especially in the low-frequency region. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microphone array / beam-forming / spatial sampling / weighting / filter design |
| Paper # | EA2017-85 |
| Date of Issue | 2018-01-16 (EA) |
| Conference Information | |
| Committee | US / EA |
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| Conference Date | 2018/1/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Minoru Kurosawa(Tokyo Inst. of Tech.) / Suehiro Shimauchi(NTT) |
| Vice Chair | Nobuyuki Endoh(Kanagawa Univ.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Mitsunori Mizumachi(Kyutech) |
| Secretary | Nobuyuki Endoh(Univ. of Toyama) / Shinichi Takeuchi(Univ. of Tokyo) / Mitsunori Mizumachi(Akita Pref. Univ.) |
| Assistant | Takenobu Tsuchiya(Kanagawa Univ.) / TREVINO Jorge(Tohoku Univ.) / Nobutaka Ito(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics / Technical Committee on Engineering Acoustics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Filter design for the spatial sampling using beam-forming |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | beam-forming |
| Keyword(3) | spatial sampling |
| Keyword(4) | weighting |
| Keyword(5) | filter design |
| 1st Author's Name | Takuma Oono |
| 1st Author's Affiliation | Akita Prefectural University(Akita Pref. Univ.) |
| 2nd Author's Name | Kanji Watanabe |
| 2nd Author's Affiliation | Akita Prefectural University(Akita Pref. Univ.) |
| 3rd Author's Name | Masayuki Nishiguchi |
| 3rd Author's Affiliation | Akita Prefectural University(Akita Pref. Univ.) |
| 4th Author's Name | Shouichi Takane |
| 4th Author's Affiliation | Akita Prefectural University(Akita Pref. Univ.) |
| 5th Author's Name | Koji Abe |
| 5th Author's Affiliation | Akita Prefectural University(Akita Pref. Univ.) |
| Date | 2018-01-23 |
| Paper # | EA2017-85 |
| Volume (vol) | vol.117 |
| Number (no) | EA-399 |
| Page | pp.pp.7-14(EA), |
| #Pages | 8 |
| Date of Issue | 2018-01-16 (EA) |