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Finite Element Methods and Equivalent Electrical Models for Loudspeaker Characterization.
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.
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