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Convention Paper

A Method of Loudspeaker Directivity Prediction Based on Huygens-Fresnel Principle

Authors: Gloukhov, Arkady

AES Convention 115 · Paper 5985 · October 2003

Abstract

In accordance with the Huygens-Fresnel principle, the radiating device is simulated as an array of point sources in the aperture. The aperture complex pressure can be calculated by means of a model of wave propagation along the waveguide based on the Huygens-Fresnel principle or by means of approximating waveguide procedure using experimental polar data in a traditional form. The method predicts dispersion pattern at any distance with any needed resolution. Phase patterns as well as dispersion vs. distance relationship are demonstrated on samples. Proposed algorithms can be used in high-resolution simulators of loudspeakers and arrays. Results also point to another approach of measurements and presentation of dispersion data.

Details

Published in
AES Convention 115
AES Convention
115
Paper number
5985
Publication date
October 6, 2003
Session subject
Sound Reinforcement
Type
Convention Paper