SPATIAL SOUND REPRODUCTION SYSTEMS USING HIGHER ORDER LOUDSPEAKERS
Spatial and Multichannel Signal Processing
Přednášející: Thushara D. Abhayapala, Autoři: Mark Poletti, Industrial Research Ltd, New Zealand; Thushara D. Abhayapala, Australian National University, Australia
Sound reproduction systems aim to produce a desired sound field over a region of space. At high frequencies, the number of loudspeakers required is prohibitive. This paper shows that the use of Nth order loudspeakers, in which each loudspeaker produces polar responses up to cos(N.phi) and sin(N.phi), produces accurate reproduction over N times the area of a first order array and can largely eliminate any exterior field. This allows a significant reduction in the number of loudspeaker units, at the expense of increased complexity in each loudspeaker unit.
Informace o přednášce
Nahráno: | 2011-05-25 14:25 - 14:45, Club A |
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Přidáno: | 14. 6. 2011 21:35 |
Počet zhlédnutí: | 24 |
Rozlišení videa: | 1024x576 px, 512x288 px |
Délka videa: | 0:20:55 |
Audio stopa: | MP3 [7.15 MB], 0:20:55 |
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