CHAPTER 21. LIVE AUDIO EFFECT REFERENCE
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Marimba,
a specialized variant of the Beam model, reproduces the characteristic tuning
of marimba bar overtones which are produced as a result of the deep arch-cut of the
bars.
String
simulates the sound produced by strings of different materials and sizes.
Membrane
is a model of a rectangular membrane (such as a drum head) with a variable
size and construction.
Plate
simulates sound production by a rectangular plate (a at surface) of different
materials and sizes.
Pipe
simulates a cylindrical tube that is fully open at one end and has a variable
opening at the other (adjusted with the Opening parameter.)
Tube
simulates a cylindrical tube that is fully open at both ends.
The quality chooser controls the tradeoff between the sound quality of the resonators and
performance by reducing the number of overtones that are calculated. Basic uses minimal
CPU resources, while Full creates more sophisticated resonances. This parameter is not
used with the Pipe or Tube resonators.
The Material knob adjusts the variation of the damping at different frequencies. At lower
values, low frequency components decay slower than high frequency components (which
simulates objects made of wood, nylon or rubber). At higher values, high frequency com-
ponents decay slower (which simulates objects made of glass or metal). This parameter is
not used with the Pipe or Tube resonators.
The Radius parameter is only available for the Pipe and Tube resonators. Radius adjusts the
radius of the pipe or tube. As the radius increases, the decay time and high frequency sustain
both increase. At very large sizes, the fundamental pitch of the resonator also changes.
The Decay and Material/Radius parameters can also be controlled with the X-Y controller.
Ratio is only available for the Membrane and Plate resonators, and adjusts the ratio of the
object's size along its x and y axes.
The Brightness control adjusts the amplitude of various frequency components. At higher
values, higher frequencies are louder. This parameter is not used with the Pipe or Tube
resonators.
