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Structural and Acoustic Analysis of Multi-Actuator Panels

Multi-Actuator Panels (MAPs) are a possible solution to satisfy the requirement of a large number of loudspeaker channels inherent in wave field synthesis. The structural acoustic behaviour of MAPs has been measured with a Laser Doppler Vibrometer and acoustic radiation simulation has been performed using a discretized Rayleigh I integral. The analysis shows that, due to the large structural damping, the acoustic radiation is almost entirely produced by the near-field around the excitation point on the panel. It is concluded that the model of an infinite panel is more appropriate than that of the widely known Distributed Mode Loudspeaker.

Authors: Beer, Daniel; Brix, Sandra; de Vries, Diemer; Kuster, Martin
Affiliations: Delft University of Technology; Fraunhofer Institut Digitale Medientechnologie(See document for exact affiliation information.)
AES Convention:118 (May 2005) Paper Number:6418 Import into BibTeX
Subject:Loudspeakers

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