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Convention Paper

Practical Applications of Chameleon Subwoofer Arrays

Authors: Hill, Adam J.; Hawksford, Malcolm O. J.

AES Convention 132 · Paper 8665 · April 2012

Abstract

Spatiotemporal variations of the low-frequency response in a closed-space are predominantly caused by room-modes. Chameleon subwoofer arrays (CSA) were developed to minimize this variance over a listening area using multiple independently-controllable source components and calibrated with one-time measurements. Although CSAs are ideally implemented using hybrid (multiple source component) subwoofers, they can alternatively be realized using conventional subwoofers. This capability is exploited in this work where various CSA configurations are tested using commercially-available subwoofers in a small-sized listening room. Spectral and temporal evaluation is performed using tone-burst and maximum length sequence (MLS) measurements. The systems are implemented with practicality in mind, keeping the number of subwoofers and calibration measurements to a minimum while maintaining correction benefits.

Details

Published in
AES Convention 132
AES Convention
132
Paper number
8665
Publication date
April 6, 2012
Session subject
Spatial Audio
Affiliation
University of Essex, Colchester, Essex, UK (See document for exact affiliation information.)
Type
Convention Paper