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Author(s): Vítor Teixeira
Jorge Ribeiro
Francisco José de Oliveira Restivo
Diamantino Rui da Silva Freitas
Title: Study of loudspeaker electromechanical nonlinearities and their compensation
Issue Date: 1996
Abstract: A typica l loudspeaker has somenonlinearities that interfere with its behaviorcausing the well-known distortions. In thispaper, we study two of the majorelectromechanical nonlinearities, the motorforce factor and the suspension compliance.First we found a model for nonlinearloudspeaker simulation. The results werecompared with experimental observation,validating the model. Two types ofcompensation were introduced, one openloop and one closed loop approaches,showing that it is possible to improveloudspeaker performance considerably.This paper describes a preliminary study ofthis type of compensation, aiming tosubsequent implementation using a digitalsignal processor (DSP).
Subject: Acústica, Engenharia electrotécnica, electrónica e informática
Acoustics, Electrical engineering, Electronic engineering, Information engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia electrotécnica, electrónica e informática
Engineering and technology::Electrical engineering, Electronic engineering, Information engineering
Source: Proceedings of the 7th International Conference on Signal Processing Applications & Technology - ICSPAT'96
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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