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Convention Paper

Optimizing Placement and Equalization of Multiple Low Frequency Loudspeakers in Rooms

Authors: Birkedal Nielsen, Sofus; Celestinos, Adrian

AES Convention 119 · Paper 6545 · October 2005

Abstract

Every room has strong influence on the low frequency performance of a loudspeaker. This is often problematic to control and to predict. The modal resonances modify the response of the loudspeaker depending on placement and listening position. In order to anticipate the behaviour of low frequency loudspeakers in rooms a simulation tool has been created based on finite-difference time-domain approximations (FDTD). Simulations have shown that by increasing the number of loudspeakers and modifying their placement a significant improvement is achieved. A more even sound pressure level distribution along a listening area is obtained. The placement of loudspeakers has been optimized. Furthermore an equalization strategy can be implemented for optimization purpose. This solution can be combined with multi channel sound systems.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6545
Publication date
October 6, 2005
Session subject
Multichannel Sound
Affiliation
Aalborg University (See document for exact affiliation information.)
Type
Convention Paper