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Convention Paper

Loudspeaker Rub Fault Detection by Means of a New Nonstationary Procedure Test

Authors: Delgado, Miguel; Ortega, Juan Antonio; Ruiz, German; Sala, Vicent

AES Convention 129 · Paper 8237 · November 2010

Abstract

This paper addresses rub defect loudspeaker detection. The study includes a simulation with a rub model based on classical static coulomb friction added to the loudspeaker nonlinearities parametric model to demonstrate the electric current signal viability to rub failure detection. The electric current signal is analyzed by means of Zhao-Atlas-Marks distribution (ZAMD). A failure extractor based on relevant ZAMD frequency regions segmentation and Mahalanobis distance is presented. The simulation and experimental results show the goodness and reliability of rub detection method presented.

Details

Published in
AES Convention 129
AES Convention
129
Paper number
8237
Publication date
November 6, 2010
Session subject
Loudspeakers and Microphones
Affiliation
UPC-Universitat Politecnica de Catalunya, Terrassa, Spain (See document for exact affiliation information.)
Type
Convention Paper