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Journal Article

Robust Two-Dimensional Surround Sound Reproduction for Nonuniform Loudspeaker Layouts

Authors: Poletti, Mark

Journal of the Audio Engineering Society · Volume 55 · Issue 7/8 · pp. 598–610 · July 2007

Abstract

The design of panning functions for surround sound systems with nonuniform loudspeaker layout is considered. It is shown that theoretical solutions exist which are interpolants for nonuniform sampling of periodic functions. However, these solutions produce large interference effects for positions far from the array center, and they are sensitive to phase and magnitude mismatches between loudspeakers. Robust solutions approximate a double complementarity property in which the weights and squared weights sum to 1 for each source angle. A least-squares method is developed for developing robust panning functions which produces a more consistent sound-field directionality than those produced by matching parameters at the origin.

Details

Publication
Journal of the Audio Engineering Society
Volume
55
Issue
7/8
Pages
598–610
Publication date
July 6, 2007
Affiliation
Industrial Research Limited, Lower Hutt, New Zealand (See document for exact affiliation information.)
Type
Journal Article