Small-room sound reproduction is strongly affected by room-modes in the low-frequency band. While the spectral impact of room-modes is well understood, there is less information on how modes degrade the spatiotemporal response of a sound reproduction system. This topic is investigated using a bespoke finite-difference time-domain (FDTD) simulation toolbox to virtually test common subwoofer configurations using tone bursts to judge waveform fidelity over a wide listening area. Temporal accuracy is compared to the steady-state frequency response to determine any link between the two domains. The simulated results are compared to practical measurements for validation.

Authors: Hill, Adam J.; Hawksford, Malcolm O. J.
Affiliations: University of Derby, Derby, Derbyshire, UK; University of Essex, Colchester, Essex, UK(See document for exact affiliation information.)
AES Convention: 133 (October 2012) Paper Number: 8715
Publication Date: October 25, 2012
Subject: Spatial Audio Over Loudspeakers

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