Derivation of a new banded waveguide model topology for sound synthesis

Alex M. Fink, Andreas Spanias, Perry R. Cook

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)EL76-EL81
JournalJournal of the Acoustical Society of America
Issue number2
StatePublished - Feb 2013

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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