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Signal Generators: Waveguide Physical Modeling

repluck, wgpluck2

  ar      repluck    iplk, xam, icps, kpick, krefl, axcite
  ar      wgpluck2   iplk, xam, icps, kpick, krefl

Description

wgpluck2 is an implementation of the physical model of the plucked string, with control over the pluck point, the pickup point and the filter. repluck is the same operation, but with an additional audio signal, axcite, used to excite the 'string'. Both opcodes are based on the Karplus-Strong algorithms.

Initialization

icps - The string plays at icps pitch.

iplck - The point of pluck is iplk, which is a fraction of the way up the string (0 to 1). A pluck point of zero means no initial pluck.

Performance

xamp – Amplitude of note.

kpick – Proportion of the way along the string to sample the output.

kabsp - absorption coefficient at the bridge where 1 means total absorption and 0 is no absorption.

Author

John ffitch
University of Bath/Codemist Ltd.
Bath, UK
1997


Use Non-Frames Version Previous Page Next Page
Signal Generators: Waveguide Physical Modeling