Measures and parameter estimation of triodes, for the real-time simulation of a multi-stage guitar preamplifier

Abstract : This paper deals with the real-time simulation of a multi-stage guitar preamplifier. Dynamic triode models based on Norman Korens model, and "secondary phenomena" as grid rectification effect and parasitic capacitances are considered. Then, the circuit is modeled by a nonlinear differential algebraic system, with extended state-space representations. Standard numerical schemes yield efficient stable simulations of the circuit, and are implemented as VST plug-ins. Measures of real triodes have been realized, to develop new triode models, and to characterize the capabilities of aged and new triodes. The results are compared for all the models, using lookup tables generated with the measures, and Norman Korens model with its parameters estimated from the measures.
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Communication dans un congrès
129th Convention of Audio Engineering Society, Nov 2010, San Francisco, United States
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https://hal.archives-ouvertes.fr/hal-00631747
Contributeur : Ivan Cohen <>
Soumis le : jeudi 13 octobre 2011 - 10:22:07
Dernière modification le : lundi 29 mai 2017 - 14:25:19
Document(s) archivé(s) le : samedi 14 janvier 2012 - 02:26:45

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Ivan Cohen, Thomas Hélie. Measures and parameter estimation of triodes, for the real-time simulation of a multi-stage guitar preamplifier. 129th Convention of Audio Engineering Society, Nov 2010, San Francisco, United States. <hal-00631747>

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