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Convention Paper

360 Degree Dispersion Frequency Invariant Acoustic Transduction System

Authors: Ferralli, Michael W.; Moulton, David

AES Convention 81 · Paper 2392 · November 1986

Abstract

An acoustic transduction system has been designed which couples the sound field of two transducers in phase and produces a resultant acoustic radiation pattern which has a full 360 degree horizontal by 90+ degree vertical frequency invariant beamwidth. The system incorporates an acoustic lens, rather than a phased array or electronic technique, to couple the sound fields and produce the wide dispersion. The system is used in a loudspeaker to achieve a 360 degree sound field which is devoid of high frequency beam collapse, and combing.

Details

Published in
AES Convention 81
AES Convention
81
Paper number
2392
Publication date
November 6, 1986
Session subject
Audio Reproduction, Transducers, and Sound Reinforcement: Loudspeakers, Microphones, and Directivity
Affiliation
Phase Coherent Audio, Inc.,Girard, PA (See document for exact affiliation information.)
Type
Convention Paper