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Convention Paper

Far-Field Loudspeaker Interaction: Accuracy in Theory and Practice

Authors: Meyer, John; Meyer, Perrin; Baird, Justin

AES Convention 110 · Paper 5309 · May 2001

Abstract

The "Far-Field" model of loudspeaker interaction is a widely used technique to model the sound pressure radiated from arrays of loudspeakers. We will provide a quick but thorough introduction to the mathematical foundation of the far-field model, and how the model compares, with regards to accuracy and computational effciency, to other formulations such as series solutions and boundary element methods. We present data from a series solution of a model spherical loudspeaker, and compare this mathematical model to actual high-resolution measurements. Using this model loudspeaker, we discuss methods for calculating and measuring accurate loudspeaker far-field polar (or directivity) patterns, and we discuss how the accuracy of the far-field polar patterns affects the accuracy of the far-field model.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5309
Publication date
May 6, 2001
Session subject
Loudspeakers
Affiliation
Meyer Sound Laboratories Inc., Berkeley, CA (See document for exact affiliation information.)
Type
Convention Paper