| Presentation | 1994/8/26 A Spatial Sound Source Made by Focused Parametric Array Sound Beam Junya Yada, Kazunori Kitagawa, Yoshimichi Yonezawa, Kazunori Itoh, Masami Hashimoto, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The spatial sound source system which means a condition of emitting a sound from a point of space as if there was a speaker at the point,was developed.The 40KHz ultra-sonic wave modulated in amplitude by the signal of audible frequency is emitted from a piezo- electric transducer,and the wave is demodulated and sharply directed beam of audible sound is generated by the parametric- array effect.Then the audible sound is reflected on a parabolic surface and focused in a point.The reflected sound wave spreads in a limited area behind the focused point with a wave front just like that of a real sound source located at the,focused point.Then, a listener in the sound spreading area will hear the audible sound as if the sound wave came from the focused point.This is the spatial sound source system we named and expected to be. By the experiments,the audible demodulated sound is heard powerful and the possibility′of spatial sound source is confirmed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Parametric Array / Spatial Sound Source / Man・Machine Interface / Non-linear effect |
| Paper # | EA94-37 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1994/8/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Spatial Sound Source Made by Focused Parametric Array Sound Beam |
| Sub Title (in English) | |
| Keyword(1) | Parametric Array |
| Keyword(2) | Spatial Sound Source |
| Keyword(3) | Man・Machine Interface |
| Keyword(4) | Non-linear effect |
| 1st Author's Name | Junya Yada |
| 1st Author's Affiliation | Faculty of Engineering,Shinshu University() |
| 2nd Author's Name | Kazunori Kitagawa |
| 2nd Author's Affiliation | Faculty of Engineering,Shinshu University |
| 3rd Author's Name | Yoshimichi Yonezawa |
| 3rd Author's Affiliation | Faculty of Engineering,Shinshu University |
| 4th Author's Name | Kazunori Itoh |
| 4th Author's Affiliation | Faculty of Engineering,Shinshu University |
| 5th Author's Name | Masami Hashimoto |
| 5th Author's Affiliation | Faculty of Engineering,Shinshu University |
| Date | 1994/8/26 |
| Paper # | EA94-37 |
| Volume (vol) | vol.94 |
| Number (no) | 202 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |