Modelling Loudspeaker Non-Linearities

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Abstract

This paper investigates different techniques for modelling the non-linear parameters of the electrodynamic loudspeaker. The methods are tested not only for their accuracy within the range of original data, but also for the ability to work reasonable outside that range, and it is demonstrated that polynomial expansions are rather poor at this, whereas an inverse polynomial expansion or localized fitting functions such as the gaussian are better suited for modelling the Bl-factor and compliance. For the inductance the sigmoid function is shown to give very good results. Finally the time varying property of the suspension is studied and it demonstrated that significant part of the variation can be predicted from the dissipated power.
Original languageEnglish
Title of host publicationProceedings of the AES 32nd. International Conference
Number of pages9
Publication date2007
Publication statusPublished - 2007
Event32nd AES International Conference - Hillerød, Denmark
Duration: 21 Sep 200723 Sep 2007
Conference number: 32nd
http://www.aes.org/events/32/

Conference

Conference32nd AES International Conference
Number32nd
CountryDenmark
CityHillerød
Period21/09/200723/09/2007
Internet address

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