Operation Manual

6.55 Organ 114
6.55 Organ
The Organ module simulates a simple polyphonic street pipe organ. Every
note played on the organ excites a pipe of different length, thereby changing the
pitch. This module has three inputs and one output. The first input is a gate signal,
generally that from a Keyboard. The second input is the driving pressure signal and
is generally connected to the output from an ADSR module or the gate signal from
a Keyboard module. Finally, the third input is a pitch signal generally connected to
the pitch output from a Keyboard. The output signal is the sound produced by the
instrument.
Three parameters can be adjusted while playing. The noise knob sets the amount
of turbulence noise in the sound. The tone knob controls the jet behavior which affects the tone
color of the organ sound. The labium knob sets the position of the edge of the labium of each organ
pipe relative to the jet. In its center position, the jet blows exactly in front of the pipe labium
Typical Use
This module is generally played with a Polykey module as shown in Figure 60.
Figure 60: An Organ module controlled with a Polykey.
Note: This module is designed to be played with a Polykey or Polyvkey module. Although it
works with one voice, you will hear clicks with note changes as the output switches abruptly from
one pipe to the other. For monophonic flute-like sounds, use the Flute module.
6.56 Outlet (1-12)
These modules are used to define the outputs of a sub-patch so that it can be connected in another
patch. These modules have no output but between 1 and 12 inputs which are connected to the
outputs of the sub-patch which you want to connect to inputs in another construction. These inputs
will correspond to the outputs of the sub-patch icon which will appear in the construction window
when later you include this sub-patch in another construction. These modules have no front panel.
Sub-patches may have between 0 and 12 inputs and 0 and 12 outputs but they must always
have at least one input or output. As soon as an Inlet or Outlet module is included in a patch, the