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Convention Paper

Nonlinear Adaptive Controller for Loudspeakers with Current Sensor

Authors: Klippel, Wolfgang

AES Convention 106 · Paper 4864 · May 1999

Abstract

Nonlinear loudspeaker distortions are predictable and can be compensated by inverse: preprocessing of the electric input signal. Control schemes developed so far require an: acoustic or mechanic output signal measured at the speaker. An additional sensor increases: the costs and is impractical under harsh environment. However, a motional signal can also be derived from the back-induced EMF by monitoring the input current of the transducer only. Following this approach a novel nonlinear adaptive detector system is presented providing a robust and cost-effective DSP solution.

Details

Published in
AES Convention 106
AES Convention
106
Paper number
4864
Publication date
May 6, 1999
Session subject
Loudspeakers
Affiliation
Klippel GmbH, Dresden, Germany (See document for exact affiliation information.)
Type
Convention Paper