User`s guide

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If your original file is in stereo, each module of SFX Machine Pro is
actually two identical sub-modules: a left and a right.
If you select “Left In” as your source, both the left and right sub-
modules will use the left channel of your audio selection as their
input. Similarly, “Right In” will feed the right channel of your audio
selection into both sub-modules. If you select “L+R In,” the average
of the two input channels will feed each of your sub-modules.
In each of these first three cases, the left and right sub-modules act
on the same input signal, though with possibly varying amounts of
incoming modulation from other modules.
Finally, if you select “Stereo In” as your source, the left channel of
the selection will feed the left sub-module and the right will feed
the right.
A mono file is regarded as being on the left channel. If your original
file is mono, Right In, L+R In and Stereo In are disabled (grayed-
out). Only left channel inputs and outputs will be available. (The
mono output will, however, play out through both speakers.)
You can create new Presets while using either a mono or a stereo
sound file, but it is best if you are consistent. If you create a Preset
using a stereo sound file and later modify and save it while using a
mono file, some of the Preset’s stereo characteristics may be lost.
This is only true of Presets that use Left In, Right In, L+R In, or non-
matching Left and Right outputs.
Note that some host programs, can only process one mono track at
a time using plug-ins. As a result, certain stereo effects will be
unavailable.
Noise
The Noise menu item selects white noise as your input source. You
may filter this noise to change its frequency spectrum. You can also
Sample and Hold the noise at a specified time interval (which can
itself be modulated) and use the output to frequency modulate
other waveforms.