Current research into electroacoustics tends to determine the global transfert function between an initial electrical signal and the acoustical signal supplied at the ear. Because electrodynamic transducers radiate in a large frequency bandwidth, lumped parameter model such as Thiele and Small's is not sufficient to provide a realistic simulation of the vibro-acoustic behaviour of the system. This study proposes the use of Finite Element and Boundary Element Methods to compute a complex 3D response of a loudspeaker for each mechanical modes and then synthesize an equivalent electrical model that takes into account acoustical coupling between all modes.

Authors: Pellerin, Guillaume; Polack, Jean-Dominique; Morkerken, Jean-Pierre
Affiliation: Laboratoire d'Acoustique Musicale, Paris, France
AES Convention: 114 (March 2003) Paper Number: 5743
Publication Date: March 1, 2003
Subject: Loudspeakers

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