Recent Extensions to Topological and Nonlinear Aspects of Wave Digital Filter Theory

Kurt James Werner

Research output: Contribution to conferenceAbstract

Abstract

The Wave Digital Filter approach can be used to create computational models of lumped reference systems, including rectilinear mechanical, rotational mechanical, acoustical, and electronic systems. When they are applicable, Wave Digital Filters enjoy properties including modularity, accuracy, and guaranteed incremental passivity that make them attractive in the context of musical instrument and audio effect simulation. However, the class of reference systems that can be modeled with Wave Digital Filters has historically been restricted to systems with simple topologies (which can be decomposed entirely into series and parallel connections) and which contain only a single “nonadaptable” element (e.g., a diode, ideal source, or switch). This talk details recent Wave Digital Filter advances from Stanford University's Center for Computer Research in Music and Acoustics (CCRMA), which broaden the applicability of Wave Digital Filters to reference systems with any topology and an arbitrary number of nonlinearities or other nonadaptable elements. These advances have enabled many new and previously intractable musical circuit simulations at CCRMA, including active tone stages and transistor/diode/feedback clipping from guitar distortion pedals, the electromechanical Hammond organ vibrato/chorus system, guitar tube pre-amplifiers and tone stacks, circuits involving operational amplifiers, drum machine circuits, and transistor amplifiers.
Original languageEnglish
Pages3092–3092
Number of pages1
DOIs
Publication statusPublished - 29 Nov 2016
Externally publishedYes
Event5th joint Meeting of the Acoustical Society of America and Acoustical Society of Japan - Hilton Hawaiian Village Waikiki Beach Resort, Honolulu, United States
Duration: 28 Nov 201602 Dec 2016
Conference number: 5
http://acousticalsociety.org/content/5th-joint-meeting-acoustical-society-america-and-acoustical-society-japan

Conference

Conference5th joint Meeting of the Acoustical Society of America and Acoustical Society of Japan
Abbreviated titleASA/ASJ
CountryUnited States
CityHonolulu
Period28/11/201602/12/2016
Internet address

Bibliographical note

invited talk

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  • Activities

    • 1 Participation in conference

    5th joint Meeting of the Acoustical Society of America and Acoustical Society of Japan

    Kurt Werner (Participant)

    28 Nov 201602 Dec 2016

    Activity: Participating in or organising an event typesParticipation in conference

    Cite this

    Werner, K. J. (2016). Recent Extensions to Topological and Nonlinear Aspects of Wave Digital Filter Theory. 3092–3092. Abstract from 5th joint Meeting of the Acoustical Society of America and Acoustical Society of Japan, Honolulu, United States. https://doi.org/10.1121/1.4969638