Abstract:
Woodwind tonehole parameters measured by Keefe [D. H. Keefe, J. Acoust. Soc. Am. 72, 676--699 (1982); ibid. 88, 35--51 (1990)] are converted to traveling-wave scattering parameters suitable for digital waveguide implementation. Digital filters are designed to approximate the reflection and transmission transfer functions implied by the Keefe data. The final result is that each tonehole is modeled using a single, first-order digital filter. The digital waveguide discrete-time simulation technique requires significantly less computation time than traditional multiconvolution time-domain methods, without loss of accuracy. The results of a digital waveguide six-hole flute bore implementation are compared to Keefe (1990), with excellent agreement.