An adaptive loudspeaker correction scheme for subwoofers is presented that is based upon a four-layer neural network algorithm. Compensation for both dominant time-invariant nonlinearities and time-varying changes in cone mass and voice-coil resistance is achieved. Control data for the correction algorithm is derived using a novel method based upon the knowledge of the current and voltage monitored at the drive unit's terminals.
Authors:
Low, Stephen; Hawksford, Malcolm J.
Affiliation:
University of Essex, Colchester, Essex, UK
AES Convention:
95 (October 1993)
Paper Number:
3751
Publication Date:
October 1, 1993
Subject:
Microphones and Loudspeakers
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