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Spatial Sound Reproduction Systems Using Higher Order Loudspeakers

Poletti, Mark; Abhayapala, Thushara


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 (Nφ) and sin (Nφ), 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...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
Source: On the Construction of Low-pass Filters on the Unit Sphere
DOI: 10.1109/ICASSP.2011.5946327


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