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Convention Paper

Characterization of Spherical Loudspeaker Arrays

Authors: Kassakian, Peter; Wessel, David

AES Convention 117 · Paper 6283 · October 2004

Abstract

The synthesis and rotational control of radiation patterns produced by spherical arrays of loudspeakers is studied. We identify operating regions, in terms of complexity of patterns and frequency ranges, over which patterns can be accurately synthesized. By considering an inner product space of far-field patterns, we can reason geometrically about approximation errors when using the systems to synthesize and control target responses. Bounds for normalized error across subspaces, in particular subspaces corresponding to the control operation of rotation, are calculated using singular value decomposition. The bounds can be interpreted as the best and worst case errors encountered when dynamically steering the patterns.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6283
Publication date
October 6, 2004
Session subject
Signal Processing
Affiliation
Center for New Music and Audio Technologies (CNMAT), UC, Berkeley, CA (See document for exact affiliation information.)
Type
Convention Paper