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J Acoust Soc Am. 2013 Feb;133(2):EL76-81. doi: 10.1121/1.4773287.

Derivation of a new banded waveguide model topology for sound synthesis.

Author information

1
School of Arts, Media and Engineering, SenSIP Center, School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA. alex.fink@asu.edu

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.

PMID:
23363197
DOI:
10.1121/1.4773287
[Indexed for MEDLINE]

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