| Presentation | 2015-07-03 A study on transaural system using directivity control of regular icosahedron loudspeaker array. Makoto Daikohara, Yoichi Haneda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes a transaural system using directivity control of a regular icosahedron loudspeaker array. The transaural system can localize an arbitrary sound image for a listener by reproducing the independent sounds at each ear with loudspeakers. However, because the system requires crosstalk cancelers, which are designed with multiple-point control, it is sensitive to the listening position. To overcome this problem, we investigate if the crosstalk component can be suppressed with the null beamformer of a loudspeaker array. First, a prototype regular icosahedron loudspeaker array was made with a 3D printer. Next, we confirmed that the directivity of a regular icosahedron loudspeaker array is capable of suppressing crosstalk components. The reproducing signals for the left and right ears are calculated by convoluting the beamformer signals with the look-direction of each ear and a head-related transfer function. The subjective evaluations we conducted showed that our system localized sound images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Loudspeaker array / Directivity control / Transaural system / Least squares method / Regular icosahedron |
| Paper # | EA2015-1 |
| Date of Issue | 2015-06-26 (EA) |
| Conference Information | |
| Committee | EA |
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| Conference Date | 2015/7/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Univ. of Electro-Communications, 80th Anniversary Memorial Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General topics, Interactive Acquisition and Reproduction |
| Chair | Yoichi Haneda(Univ. of Electro-Comm.) |
| Vice Chair | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) |
| Secretary | Yukio Iwaya(NTT) / Mitsunori Mizumachi(KDDI R&D Labs.) |
| Assistant | Shoichi Koyama(Univ. of Tokyo) |
| Paper Information | |
| Registration To | 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) | A study on transaural system using directivity control of regular icosahedron loudspeaker array. |
| Sub Title (in English) | |
| Keyword(1) | Loudspeaker array |
| Keyword(2) | Directivity control |
| Keyword(3) | Transaural system |
| Keyword(4) | Least squares method |
| Keyword(5) | Regular icosahedron |
| 1st Author's Name | Makoto Daikohara |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Yoichi Haneda |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2015-07-03 |
| Paper # | EA2015-1 |
| Volume (vol) | vol.115 |
| Number (no) | EA-126 |
| Page | pp.pp.1-6(EA), |
| #Pages | 6 |
| Date of Issue | 2015-06-26 (EA) |