Digital waveguide modeling of woodwind toneholes
Year: 1997
Type: article
Abstract: This paper demonstrates a digital waveguide implementation of a six-hole woodwind tonehole lattice, based on theory and measurements published by Keefe (1981). Woodwind tonehole transmission-matrix parameters are converted to traveling-wave scattering parameters suitable for digital waveguide implementation. Second-order digital filters are designed to approximate the reflection and transmission transfer functions implied by the Keefe data. In this way, the tonehole is implemented by a two-port scattering junction which accounts for both series and shunt complex impedances. Alternatively, the tonehole can be implemented as a one-multiply, one-filter, threeport scattering junction. The results of a digital waveguide six-hole flute bore implementation using both models are compared to Keefe (1990), with excellent agreement. In this way, the best available acoustic theory regarding toneholes is e#ciently and accurately simulated in discrete-time.
Authors: Gary Scavone, Julius O. Smith
Language: English
Subfield: Music
Field: Arts and Humanities
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W2240489060