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Convention Paper

On the Sound Field of a Membrane in an Infinite Baffle

Authors: Kärkkäinen, Leo; Mellow, Tim

AES Convention 118 · Paper 6419 · May 2005

Abstract

The sound radiation characteristics of a fluid-loaded membrane are calculated analytically and using a finite element model. It is shown that good correlation between the two calculation methods can be achieved, providing the elements are small enough. The model can be applied to electrostatic or other membrane type loudspeakers with a very large back cavity. Although this is seldom possible in practice, this model provides an indication of what the theoretical limit of the bass performance actually is as well as an analytical benchmark for the finite element modeling of fluid-structure coupled problems.

Details

Published in
AES Convention 118
AES Convention
118
Paper number
6419
Publication date
May 6, 2005
Session subject
Loudspeakers
Affiliation
Nokia; Nokia Research Center (See document for exact affiliation information.)
Type
Convention Paper