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Low Frequency Sound Field Enhancement System for Rectangular Rooms using Multiple Low Frequency Loudspeakers

Rectangular rooms have strong influence on the low frequency performance of loudspeakers. Simulations of three different room sizes have been carried out using finite-difference time-domain method (FDTD) in order to predict the behaviour of the sound field at low frequencies. By using an enhancement system with extra loudspeakers the sound pressure level distribution along the listening area presents a significant improvement in the subwoofer frequency range. The system is simulated and implemented on the three different rooms and finally verified by measurements on the real rooms.

Authors: Birkedal Nielsen, Sofus; Celestinos, Adrian
Affiliation: Department of Acoustics, Insitute of Electronic Systems, Aalborg University
AES Convention:120 (May 2006) Paper Number:6688 Import into BibTeX
Subject:Multichannel Sound

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