| Presentation | 2014-01-27 An Envelope Method for Improving the Product Directivity Models of the Parametric Loudspeaker Chuang SHI, Hideyuki NOMURA, Tomoo KAMAKURA, Woon-Seng GAN, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The directivity of a parametric loudspeaker is roughly described by the product directivity principle or more accurately estimated by the product directivity models. There are two types of discrepancies observed between experimental directivities and those obtained based on the product directivity principle or models. Firstly, experimental beamwidths of the demodulated wave are wider than those numerically calculated. Secondly, sidelobes of the demodulated wave occur in the simulation, but they are rarely observed in the measurement. An envelope method is suggested in this paper, which can improve the product directivity principle or models in predicting the directivity of a parametric loudspeaker. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Parametric loudspeaker / Product directivity / Envelope method |
| Paper # | US2013-91,EA2013-104 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2014/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Envelope Method for Improving the Product Directivity Models of the Parametric Loudspeaker |
| Sub Title (in English) | |
| Keyword(1) | Parametric loudspeaker |
| Keyword(2) | Product directivity |
| Keyword(3) | Envelope method |
| 1st Author's Name | Chuang SHI |
| 1st Author's Affiliation | Nanyang Technological University:The University of Electro-Communications() |
| 2nd Author's Name | Hideyuki NOMURA |
| 2nd Author's Affiliation | The University of Electro-Communications |
| 3rd Author's Name | Tomoo KAMAKURA |
| 3rd Author's Affiliation | The University of Electro-Communications |
| 4th Author's Name | Woon-Seng GAN |
| 4th Author's Affiliation | Nanyang Technological University |
| Date | 2014-01-27 |
| Paper # | US2013-91,EA2013-104 |
| Volume (vol) | vol.113 |
| Number (no) | 413 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |