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Conference Paper

Measurement of Loudspeaker Parameters Considering a Better Fitting for the Mechanical Impedance - A Fast Way to Do It

Authors: Moreno, Jorge; Medina, Raul

AES Conference: 51st International Conference: Loudspeakers and Headphones · Paper 2-3 · August 2013

Abstract

A fast multichannel laser based method to measure the parameters of a loudspeaker is presented. A truncated generalized Maxwell (TGM) model is used to describe more closely the behavior of the real and imaginary parts of the mechanical impedance at low frequencies. As in previous papers related to the subject presented by one of the authors, no extra mass or compliance are needed to estimate the loudspeaker parameters. The method presented here, has been automated and the required measurements: voltage, current circulating in the voice coil, and cone velocity, are registered in parallel. The calculations are completed by post processing using dedicated software.

Details

Published in
AES Conference: 51st International Conference: Loudspeakers and Headphones
Paper number
2-3
Publication date
August 6, 2013
Session subject
Testing and Measurement
Affiliation
Pontificia Universidad Catolica del Peru, Lima, Peru (See document for exact affiliation information.)
Type
Conference Paper