Operation Manual

6.44 Mix2, Mix3, Mix4 and Mix5 106
• Excitation point-y: y-coordinate, in meters, of impact point from the lower left corner of the
membrane.
• Listening point-x: x-coordinate, in meters, of listening point from the lower left corner of the
membrane.
• Listening point-y: y-coordinate, in meters, of listening point from the lower left corner of the
membrane.
Note: For more details on this module and especially the front panel controls, see the Multimode
module.
6.44 Mix2, Mix3, Mix4 and Mix5
These modules are used to mix signals together with no relative gain coefficient. The number of
inputs can vary between two and five, depending on the module chosen. The output is the sum of
the inputs. This module has no front panel control.
Typical Use
A Mix3 module is used for mixing the output of three filters in the example of Figure 33 under
Bandpass2. In Figure 42 under Damper, a Mix2 module is used to perform a logical OR function
of two gate signals (output is on when either input is on) in order to reproduce the behavior of a
piano damper pedal.
6.45 Modulation Wheel
This module is used to receive signal from a MIDI modulation wheel (MIDI controller number
1). It has one output, the modulation wheel signal, which lies between 0 and 1, depending on the
modulation wheel position. This module has no input and no front panel control.
The default value of the following parameter is set at construction
• MIDI channel: MIDI channel used by the modulation wheel.
6.46 Multimode
The Multimode module is used to simulate mechanical objects such as strings, plates, membranes,
beams. The output of this module is the acoustic signal that would be produced by these objects
given a certain geometry, material, type of excitation, listening point and damping. The function-
ing of this module is based on modal analysis. This technique is well-known in areas of physics