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Convention Paper

A Microcomputer Program for Central Loudspeaker Array Design

Authors: Albertz, David; Eargle, John; Keele, Jr., D. B. (Don); Means, Ronald

AES Convention 74 · Paper 2028 · October 1983

Abstract

A microcomputer program is described which accurately calculates the direct-field SPL at points on a seating area generated by an arbitrary configuration of loudspeakers. The program solves inverse square losses as seen through the loudspeaker's directional pattern at up to 230 points on the searing plane. When multiple loudspeakers are used, their coverage patterns are merged by two strategies: phasor summation takes into account interference phenomena, while non-phasor combination provides the maximum envelope of response that can be expected of the combination of loudspeakers. When acoustical data is provided, direct-to-reverberant ratios can be calculated, and estimates of intelligibility, using the method of Peutz, can be made. A graphics portion of the program provides front, side, and top orthographic views of the loudspeaker array.

Details

Published in
AES Convention 74
AES Convention
74
Paper number
2028
Publication date
October 6, 1983
Session subject
Sound Reinforcement
Affiliation
JBL Incorporated, Northridge, CA (See document for exact affiliation information.)
Type
Convention Paper