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Derivation of a new banded waveguide model topology for sound synthesis

Author(s): Fink, Alex M; Spanias, Andreas S; Cook, Perry R

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Abstract: Banded waveguide (BWG) synthesis is an efficient method for real-time physical modeling of dispersive and multidimensional sounding objects, affording simulation of complex interactions, such as bowing. Current implementations, however, use nonphysical design parameters and produce a range of outputs that do not match equivalently designed modal and digital waveguide (DWG) models. This letter proposes a new topology for implementing BWG models without arbitrary parameters. The impulse response of the proposed model is identical to that of equivalent Karplus-Strong type and lumped modal models. Test of a nonlinear bi-directional bowed-string model demonstrates improved attack characteristics relative to prior BWG models.
Publication Date: 2013
Citation: Fink, Alex M., Andreas S. Spanias, and Perry R. Cook. "Derivation of a new banded waveguide model topology for sound synthesis." The Journal of the Acoustical Society of America 133, no. 2 (2013): pp. EL76-EL81. doi:10.1121/1.4773287
DOI: 10.1121/1.4773287
ISSN: 0001-4966
Pages: EL76 - EL81
Type of Material: Journal Article
Journal/Proceeding Title: The Journal of the Acoustical Society of America
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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