Digital Waveguides

• Digital waveguide models are built out of digital delay-lines and filters (and nonlinear elements), and they can be understood as propagating and filtering sampled traveling-wave solutions to the wave equation (PDE), such as for air, strings, rods, and the like

• Strings, woodwinds, and brasses comprise three of the four sections of an orchestra (all but percussion)

• Digital waveguides have also been extended to propagation in 2D, 3D, and beyond

• They are not finite-difference models, but paradoxically they are equivalent under certain conditions)

• A summary of historical aspects appears in an appendix of the text