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Journal Article

Model-Based Adaptive Filtering of Dielectric Elastomer Loudspeakers

Authors: Garnell, Emil; Doaré, Olivier; Rouby, Corinne

Journal of the Audio Engineering Society · Volume 69 · Issue 6 · pp. 389–397 · June 2021

Abstract

Dielectric elastomers are soft actuators that can reach deformations by more than 500% when a high voltage is applied. They have been considered for use as loudspeakers because of their quick response. One of their limitations is an inhomogeneous frequency response, due to the modal behavior of the membrane. In this study, we set up a sensor-free adaptive filtering strategy that relies on a finite element model of the loudspeaker, to improve the frequency response.

Details

Publication
Journal of the Audio Engineering Society
Volume
69
Issue
6
Pages
389–397
Publication date
June 6, 2021
Affiliation
IMSIA, CNRS, ENSTA Paris, EDF, CEA, Institut Polytechnique de Paris, Paris, France (See document for exact affiliation information.)
Type
Journal Article