Operation Manual

6.60 Pitch Wheel 120
The Pickup module is used in Figure 67 to construct an electric piano. In Figure 68, a Pickup
module is used as a distortion. The effect is applied to the signal coming out from a Polyphonic
Mixer.
Figure 68: A Pickup used as a distortion.
The default value of the following parameters is set at construction
• symmetry: vertical position of the pickup relative to the oscillating object. This parameter
varies between -2 and 2, 0 is exactly in front of the object.
• distance: proportional to the horizontal distance between the oscillating object and the
pickup. Varies between 0.1 and 2.
• ampin: gain of amplifiers placed at the input of the pickup module.
• ampout: gain of amplifiers placed at the output of the pickup module.
6.60 Pitch Wheel
The Pitch wheel module reads the signal from the pitch wheel of a keyboard. The output signal
lies between -1 and +1, its value depending on the position of the pitch wheel. The output signal
is equal to 0 when the pitch wheel is not moving. 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 pitch wheel.
6.61 Plate
The Plate module simulates sound production by rectangular plates of different materials and sizes.
This module first calculates the modal parameters corresponding to plate-shaped objects according
to the value of the different parameters requested at construction time and, next, calls the Multi-
mode module to simulate the sound. The module has one output, the sound produced by the plate,
and three inputs. The first input signal is a damping signal which, depending on its value, lowers
or raises dampers on the structure. When the input signal is equal to 0, dampers are lowered on