A theory of smart loudspeaker arrays is described where a modified Fourier technique yields complex filter coefficients to determine the broadband radiation characteristics of a uniform array of micro drive units. Beam width and direction are individually programmable over a 180-degree arc, where multiple agile and steerable beams carrying dissimilar signals can be accommodated. A novel method of diffuse filter design is also presented that endows the directional array with diffuse radiation properties.

Author: Hawksford, Malcolm J.
Affiliation: Centre for Audio Research and Engineering, University of Essex, UK
AES Convention: 110 (May 2001) Paper Number: 5362
Publication Date: May 1, 2001
Subject: Signal Processing for Audio

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