| Presentation | 2021-07-15 A study of a small directional loud-speaker array that combines a horn loud-speaker and ordinary loud-speakers Manabu Okamoto, Ryotaro Sato, Kenta Niwa, Kazunori Kobayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a speaker array that combines multiple speakers with one small horn speaker. The horn speaker is mainly good at high frequency control, and the speaker array is mainly good at low frequency directivity control. By using both different speakers to form directivity, we aim to form directivity in a wider frequency band. In the experiment, an array was assembled with a horn speaker of about 10 cm and three speakers, and the filter was designed by the boundary sound field control method. As a result, it was confirmed that the directivity equal to or higher than that of the normal speaker array and the horn speaker alone can be formed in the band of 250 Hz or higher. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Loudspeaker array / Directivity / Horn speaker / Boundary surface control principle |
| Paper # | EA2021-4 |
| Date of Issue | 2021-07-08 (EA) |
| Conference Information | |
| Committee | EA / ASJ-H |
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| Conference Date | 2021/7/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Psychological and Physiological Acoustics, Speech, Musical Acoustics, Education in Acoustics, and Related Topics |
| Chair | Yoshinobu Kajikawa(Kansai Univ.) |
| Vice Chair | Kenichi Furuya(Oita Univ.) / Shoichi Koyama(Univ. of Tokyo) |
| Secretary | Kenichi Furuya(NTT) / Shoichi Koyama(RitsumeikanUniv.) |
| Assistant | Yukou Wakabayashi(Tokyo Metropolitan Univ.) / Tatsuya Komatsu(LINE) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Auditory Research Meeting |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of a small directional loud-speaker array that combines a horn loud-speaker and ordinary loud-speakers |
| Sub Title (in English) | |
| Keyword(1) | Loudspeaker array |
| Keyword(2) | Directivity |
| Keyword(3) | Horn speaker |
| Keyword(4) | Boundary surface control principle |
| 1st Author's Name | Manabu Okamoto |
| 1st Author's Affiliation | Sojo University(Sojo Univ.) |
| 2nd Author's Name | Ryotaro Sato |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corp.(NTT) |
| 3rd Author's Name | Kenta Niwa |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corp.(NTT) |
| 4th Author's Name | Kazunori Kobayashi |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corp.(NTT) |
| Date | 2021-07-15 |
| Paper # | EA2021-4 |
| Volume (vol) | vol.121 |
| Number (no) | EA-112 |
| Page | pp.pp.18-23(EA), |
| #Pages | 6 |
| Date of Issue | 2021-07-08 (EA) |