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Convention Paper

Determination of Loudspeaker Parameters Using a System Identification Technique

Authors: Knudsen, Morten H.; Rubak, Per

AES Convention 82 · Paper 2445 · March 1987

Abstract

To measure the parameters, the loudspeaker driver is excited by a low-pass filtered step or square-wave voltage input. From recordings of the voltage and the corresponding current and coil velocity by a micro computer, a linear discrete time model of the loudspeaker is determined, using the prediction error system identification method. Application of the described method on a number of loudspeakers indicate that it is both fast and accurate.

Details

Published in
AES Convention 82
AES Convention
82
Paper number
2445
Publication date
March 6, 1987
Session subject
Loudspeakers
Affiliation
Institute of Electronic Systems, Aalborg University, Aalborg, Denmark (See document for exact affiliation information.)
Type
Convention Paper