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Aspects of Digital Waveguide Networks for Acoustic Modeling Applications
Overview This paper collects together various facts about digital waveguide networks (DWN) used in acoustic modeling, particularly results pertaining to lossless scattering at the junction of intersecting digital waveguides. Applications discussed include music synthesis based on physical models and delay effects such as artificial reverberation. Connections with Wave Digital Filters (WDF), ladder/lattice digital filters, and other related topics are outlined. General conditions for losslessness and passivity are specified. Computational complexity and dynamic range requirements are addressed. Both physical and algebraic analyses are utilized. The physical interpretation leads to many of the desirable properties of DWNs. Using both physical and algebraic approaches, three new normalized ladder filter structures are derived which have only three multiplications per two-port scattering junction instead of the four required in the well known version.
| Publisher | Stanford Knowledgebase | File Format | HTML |
|---|---|---|---|
| Date Published | December 1997 | Downloads | 10 |
| Format | White Papers | ||
| Topics | |||
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