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Convention Paper

Preliminary Results of Calculation of a Sound Field Distribution for the Design of a Sound Field Effector Using a 2-Way Loudspeaker Array with Pseudorandom Configuration

Authors: Iijima, Yoshihiro; Ashihara, Kaoru; Kiryu, Shogo

AES Convention 125 · Paper 7616 · October 2008

Abstract

We have been developing a loudspeaker array system which can be controlled sound field in real time for live concerts. In order to reduce the sidelobes and to improve the frequency range, a 2-way loudspeaker array with pseudorandom configuration is proposed. A software has been developing to determine the configuration. For now, the configuration is optimized for a focused sound. The software calculates the ratio between the sound pressure of the focus point and the average of the sound pressure around the focus. It was shown that the sidelobe can be reduced with a pseudorandom configuration.

Details

Published in
AES Convention 125
AES Convention
125
Paper number
7616
Publication date
October 6, 2008
Session subject
Loudspeakers
Affiliation
Musashi Institute of Technology; Advanced Industrial Science and Technology (See document for exact affiliation information.)
Type
Convention Paper