| Presentation | 2018-08-23 Investigation of reduction method of noise occurring outside audiospot Shinichiro Osanai, Kazuhiro Kondo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A parametric speaker is a device capable of outputting sound waves of strong directivity using the straight of ultrasonic waves． In recent years, a technique has been developed that uses this parametric speaker to create a space (audio spot) where sounds can be heard locally in three dimensional space． This makes it possible to reproduce different sounds depending on places even in the same room, so expectations are expected to be applied to space sharing and the like． However, in the creation of the audio spot using the existing method, it was found that an unintended audible sound is generated outside the range of the originally assumed audio spot region． Considering the use of audio spots, it is not preferable to hear the noise outside the spot, so in this research we examined and evaluated the method to reduce the noise． |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Parametric speaker / Audiospot / Sideband / Self demodulation |
| Paper # | EA2018-36 |
| Date of Issue | 2018-08-16 (EA) |
| Conference Information | |
| Committee | EA / ASJ-H |
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| Conference Date | 2018/8/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Gakuin Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics |
| Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / 小澤 賢司(山梨大) |
| Vice Chair | Kenichi Furuya(Oita Univ.) / Kanji Watanabe(Akita Pref. Univ.) / 中川 誠司(千葉大) |
| Secretary | Kenichi Furuya(Shizuoka Inst. of Science and Tech.) / Kanji Watanabe(NHK) / 中川 誠司(尚絅大) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) |
| 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) | Investigation of reduction method of noise occurring outside audiospot |
| Sub Title (in English) | |
| Keyword(1) | Parametric speaker |
| Keyword(2) | Audiospot |
| Keyword(3) | Sideband |
| Keyword(4) | Self demodulation |
| 1st Author's Name | Shinichiro Osanai |
| 1st Author's Affiliation | Yamagata University(Yamagata Univ.) |
| 2nd Author's Name | Kazuhiro Kondo |
| 2nd Author's Affiliation | Yamagata University(Yamagata Univ.) |
| Date | 2018-08-23 |
| Paper # | EA2018-36 |
| Volume (vol) | vol.118 |
| Number (no) | EA-190 |
| Page | pp.pp.51-56(EA), |
| #Pages | 6 |
| Date of Issue | 2018-08-16 (EA) |