| Presentation | 2013-01-24 Vertical Sound Images Control using Parametric Speakers Kumi MAEDA, Takanori NISHINO, Hiroshi NARUSE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Stereophonic sound systems, such as a 5.1-ch surround system, control sound images in the horizon-tal plane, however, their vertical localization remains unsatisfactory. We proposed and evaluated the method of controlling sound images with four parametric speakers that have a super-directivity to achieve the horizontal and vertical sound localization on the screen. Our proposed system uses sounds that are reflected on a wall and controls sound images based on sound level differences among parametric speakers. We evaluated the sound localization performances by subjective tests and roughly achieved horizontal sound localization, however, vertical sound local-ization was difficult. In this report, we examine the vertical angle of the parametric speakers to improve the vertical sound localization. Two experimental conditions to change the irradiation direction of the sound are evaluated. One condition is only changing the installation angle of parametric speakers, and the other is changing the installation angle and the height of parametric speakers. The sound localization performances are evaluated subjectively. From the results, good sound localization was obtained by changing installation angle of parametric speakers. It suggests that a large distance between the irradiation positions is effective to the vertical sound localization. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sound image control / Parametric speaker / Reflected wave / Sound level difference / Subjective test |
| Paper # | US2012-93,EA2012-124 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2013/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Vertical Sound Images Control using Parametric Speakers |
| Sub Title (in English) | |
| Keyword(1) | Sound image control |
| Keyword(2) | Parametric speaker |
| Keyword(3) | Reflected wave |
| Keyword(4) | Sound level difference |
| Keyword(5) | Subjective test |
| 1st Author's Name | Kumi MAEDA |
| 1st Author's Affiliation | Graduate School of Engineering, Mie University() |
| 2nd Author's Name | Takanori NISHINO |
| 2nd Author's Affiliation | Graduate School of Engineering, Mie University |
| 3rd Author's Name | Hiroshi NARUSE |
| 3rd Author's Affiliation | Graduate School of Engineering, Mie University |
| Date | 2013-01-24 |
| Paper # | US2012-93,EA2012-124 |
| Volume (vol) | vol.112 |
| Number (no) | 387 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |