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Limitations of Digital Filter Design

Digital filter design works best for linear, time-invariant elements.

Approaches for nonlinear, time-varying systems:

Both the digital waveguide and wave digital modeling frameworks have precise physical interpretations. They both therefore classify as physically meaningful explicit finite difference schemes.


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``Recent Developments in Musical Sound Synthesis Based on a Physical Model'', by Julius O. Smith III, (Stockholm Musical Acoustics Conference (SMAC-03), August 6--9, 2003).
Copyright © 2006-02-19 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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