| Presentation | 2017-12-01 Matrix Driving Method for Multichannel Loudspeaker using Multiplication-output and Delta-sigma Modulator with Multiple inputs Shigeto Takeoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A sound wave is a physical phenomenon in which three-dimensional vibrations are propagated, in principle. It is known that in order to exactly reproduce the wave front of sound based on the Huygens principle, it is necessary to set a control point such as a speaker for each half wavelength of the target frequency band. However, constructing such a large-scale system with the method of individually wiring each element as is currently done is difficult, and a method that can control many points with a simpler structure is desired. We have been studying the individual driving method of multichannel speakers having common wiring lines. This method drives the multiplication output speakers by using the ΔΣ modulator with multiple inputs. In this paper, we report on the higher order multiple-input type modulator and the experimental results of the prototype speaker. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | loudspeaker arraydelta-sigma modulationsuper-multichannel processing1bit signal processingMIDS modulation |
| Paper # | EA2017-83 |
| Date of Issue | 2017-11-23 (EA) |
| Conference Information | |
| Committee | EA / ASJ-H |
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| Conference Date | 2017/11/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Auckland (New Zealand) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics |
| Chair | Suehiro Shimauchi(NTT) / 平原 達也(富山県立大) |
| Vice Chair | Mitsunori Mizumachi(Kyutech) / 中川 誠司(千葉大) |
| Secretary | Mitsunori Mizumachi(Akita Pref. Univ.) / 中川 誠司(Shizuoka Inst. of Science and Tech.) |
| Assistant | TREVINO Jorge(Tohoku Univ.) / Nobutaka Ito(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Auditory Research Meeting |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Matrix Driving Method for Multichannel Loudspeaker using Multiplication-output and Delta-sigma Modulator with Multiple inputs |
| Sub Title (in English) | |
| Keyword(1) | loudspeaker arraydelta-sigma modulationsuper-multichannel processing1bit signal processingMIDS modulation |
| 1st Author's Name | Shigeto Takeoka |
| 1st Author's Affiliation | Shizuoka Institute of Science and Technology(Shizuoka Inst. of Science and Tech.) |
| Date | 2017-12-01 |
| Paper # | EA2017-83 |
| Volume (vol) | vol.117 |
| Number (no) | EA-328 |
| Page | pp.pp.133-138(EA), |
| #Pages | 6 |
| Date of Issue | 2017-11-23 (EA) |