Improving the robustness of the iterative solver in state-space modelling of guitar distortion circuitry

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Abstract

Iterative solvers are required for the discrete-time simulation of nonlinear behaviour in analogue distortion circuits. Unfortunately,these methods are often computationally too expensive for realtime simulation. Two methods are presented which attempt to reduce the expense of iterative solvers. This is achieved by applying information that is derived from the specific form of the non linearity.The approach is first explained through the modelling of an asymmetrical diode clipper, and further exemplified by application to the Dallas Rangemaster Treble Booster guitar pedal, which provides an initial perspective of the performance on systems with multiple nonlinearities.
Original languageEnglish
Title of host publicationProceedings of the 18th International Conference on Digital Audio Effects (DAFx-15)
PublisherDAFx
Number of pages8
Publication statusPublished - Dec 2015
Event18th International Conference on Digital Audio Effects (DAFx-15) - Norwegian University of Science and Technology, Trondheim, Norway
Duration: 30 Nov 201503 Dec 2015

Publication series

NameDAFx Conference Proceedings
ISSN (Print)2413-6700
ISSN (Electronic)2413-6689

Conference

Conference18th International Conference on Digital Audio Effects (DAFx-15)
Country/TerritoryNorway
CityTrondheim
Period30/11/201503/12/2015

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