A passive nonlinear digital filter design which facilitates physics-based sound synthesis of highly nonlinear musical instruments
Pierce, J. R.
Van Duyne, S. A.
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Recent work has led to highly efficient physics-based computational models of wave propagation in strings, acoustic tubes, membranes, plates, and rooms using the digital waveguide filter, the 2-D digital waveguide mesh, and the 3-D tetrahedral digital waveguide mesh, all of which are suitable for real-time musical synthesis applications. A simple first-order nonlinear filter structure derived from a passive nonlinear impedance circuit is described which extends the usefulness of these models, and which avoids the difficulties of energy conservation when memoryless nonlinearities are inserted in resonant feedback systems
Pierce, J. R., and S. A. Van Duyne. 1997. "A passive nonlinear digital filter design which facilitates physics-based sound synthesis of highly nonlinear musical instruments." Journal of the Acoustical Society of America 101(2): 1120-6. doi:10.1121/1.418017 © 1997 Acoustical Society of America