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Conference Paper

Acoustic Element and Array Design Approaches

Authors: Huon, Graeme

AES Conference: 52nd International Conference: Sound Field Control - Engineering and Perception · Paper 2-3 · September 2013

Abstract

Wave propagation theory relevant to array design is summarised. Broad-fire and End-fire array types are considered with regard to array element directivity and point source behaviour in particular. Factors including the aperture limit, spatial aliasing, truncation effects and driver directivity control techniques are considered and strategies summarised. A novel approach to driver design allowing flexible control over directivity at manufacture is then explored and a prototype reported on. It is verified that the aperture limit can be exceeded. The implications for array design and reciprocal capture approaches are considered. Patent applications apply to aspects of this work.

Details

Published in
AES Conference: 52nd International Conference: Sound Field Control - Engineering and Perception
Paper number
2-3
Publication date
September 6, 2013
Session subject
Spatial Field Control Theory and Applications
Affiliation
HuonLabs Pty. Ltd., Melbourne, Australia (See document for exact affiliation information.)
Type
Conference Paper