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Convention Paper

Improved Methods for Controlling Touring Loudspeaker Arrays

Authors: Thompson, Ambrose

AES Convention 127 · Paper 7828 · October 2009

Abstract

Users of modern array loudspeakers, used for high level sound reinforcement, demand more precise control of these systems. Current methods of control were examined and found to be inadequate for meeting a new more stringent set of user requirements. We investigate how these requirements may be formed into a mathematical model of the system suitable for numerical optimisation. The primary design variable for optimisation was the complex transfer functions applied to each acoustic source. We then describe how the optimised transfer functions were implemented with FIR filters on typically available hardware. Finally, comparison was made between the predicted and measured output for a large array.

Details

Published in
AES Convention 127
AES Convention
127
Paper number
7828
Publication date
October 6, 2009
Session subject
Music Production
Affiliation
Martin Audio, London, UK (See document for exact affiliation information.)
Type
Convention Paper