Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops

Many systems featuring nonlinearities and delay-free loops are of interest in digital audio, particularly in virtual analog and physical modeling applications. Many of these systems can be posed as systems of implicitly related ordinary differential equations. Provided each equation in the network i...

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Main Author: David Medine
Format: Article
Language:English
Published: MDPI AG 2016-05-01
Series:Applied Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-3417/6/5/134
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author David Medine
author_facet David Medine
author_sort David Medine
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description Many systems featuring nonlinearities and delay-free loops are of interest in digital audio, particularly in virtual analog and physical modeling applications. Many of these systems can be posed as systems of implicitly related ordinary differential equations. Provided each equation in the network is itself an explicit one, straightforward numerical solvers may be employed to compute the output of such systems without resorting to linearization or matrix inversions for every parameter change. This is a cheap and effective means for synthesizing delay-free, nonlinear systems without resorting to large lookup tables, iterative methods, or the insertion of fictitious delay and is therefor suitable for real-time applications. Several examples are shown to illustrate the efficacy of this approach.
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spelling doaj.art-bc5147fcf5d249a3ad73bcc19b1906652022-12-21T19:23:21ZengMDPI AGApplied Sciences2076-34172016-05-016513410.3390/app6050134app6050134Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free LoopsDavid Medine0Department of Music, University of California, San Diego, CA 92093, USAMany systems featuring nonlinearities and delay-free loops are of interest in digital audio, particularly in virtual analog and physical modeling applications. Many of these systems can be posed as systems of implicitly related ordinary differential equations. Provided each equation in the network is itself an explicit one, straightforward numerical solvers may be employed to compute the output of such systems without resorting to linearization or matrix inversions for every parameter change. This is a cheap and effective means for synthesizing delay-free, nonlinear systems without resorting to large lookup tables, iterative methods, or the insertion of fictitious delay and is therefor suitable for real-time applications. Several examples are shown to illustrate the efficacy of this approach.http://www.mdpi.com/2076-3417/6/5/134digital signal processingsound synthesis and modelingdynamical systemsvirtual analogphysical modeling
spellingShingle David Medine
Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
Applied Sciences
digital signal processing
sound synthesis and modeling
dynamical systems
virtual analog
physical modeling
title Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
title_full Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
title_fullStr Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
title_full_unstemmed Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
title_short Dynamical Systems for Audio Synthesis: Embracing Nonlinearities and Delay-Free Loops
title_sort dynamical systems for audio synthesis embracing nonlinearities and delay free loops
topic digital signal processing
sound synthesis and modeling
dynamical systems
virtual analog
physical modeling
url http://www.mdpi.com/2076-3417/6/5/134
work_keys_str_mv AT davidmedine dynamicalsystemsforaudiosynthesisembracingnonlinearitiesanddelayfreeloops