CHAPTER 23. LIVE INSTRUMENT REFERENCE
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The type chooser allows you to select from seven types of physically modeled resonant
objects:
Beam
simulates the resonance properties of beams of different materials and sizes.
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 closed 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 Decay slider adjusts the internal damping of the resonator, which determines its decay
time. Off Decay determines the extent to which MIDI note off messages mute the resonance.
At 0%, note offs are ignored, and the decay time is based only on the value of the Decay
parameter. This is similar to how real-world mallet instruments such as a marimbas and
glockenspiels behave. At 100%, the resonance is muted immediately at note off, regardless
of the Decay time.
The Material slider 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. This slider adjusts