Digital Waveguide Synthesis of the Geomungo with a Time-varying Loss Filter

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This article proposes a commuted waveguide synthesis model for the geomungo, a Korean traditional plucked-string instrument featuring unusually wide vibrato. To model pitch fluctuation as well as the decay characteristics of its harmonic partials, a time-varying loss filter with a sinusoidal loop gain is used. Filter parameters are estimated by approximating the gains, and excitation signals are generated by inverse filtering the original sound. Real-time implementation of the algorithm for the development of the virtual instrument is also discussed.
Publisher
AUDIO ENGINEERING SOC
Issue Date
2013-01
Language
English
Article Type
Article
Keywords

SOUND SYNTHESIS; INSTRUMENTS; ALGORITHM; MODEL

Citation

JOURNAL OF THE AUDIO ENGINEERING SOCIETY, v.61, no.1-2, pp.50 - 61

ISSN
1549-4950
URI
http://hdl.handle.net/10203/209865
Appears in Collection
GCT-Journal Papers(저널논문)
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