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Convention Paper

Near Field Analysis and Optimization of Linear Loudspeaker Arrays

Authors: Beigelbeck, Roman; Pichler, Heinrich; Paschke, Fritz

AES Convention 112 · Paper 5608 · April 2002

Abstract

The sound pressure and the sound velocity in the near field of a linear loudspeaker array is proposed and investigated from a mathematical point of view. Four different piston models, employing circular, elliptical and (two different models of) rectangular pistons, are explicitly calculated and closed-form solutions using higher transcendental functions are provided. As a representative overview of results, near field directional diagrams for different frequencies, different distances of the field point, as well as for varying phases of signal, are shown. Based on these results some optimization methods for phases of signal, loudspeaker geometry and array geometry are developed.

Details

Published in
AES Convention 112
AES Convention
112
Paper number
5608
Publication date
April 6, 2002
Session subject
Seminar: Loudspeaker Arrays
Affiliation
Institute of Industrial Electronics and Material Science, Vienna University of Technology, Vienna, Austria. (See document for exact affiliation information.)
Type
Convention Paper