User Manual

SUBTRACTOR SYNTHESIZER
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Setting Number of Voices - Polyphony
This determines the polyphony, i.e. the number of voices a Subtractor Patch can play simultaneously. This can be
used to make a patch monophonic (=a setting of “1”), or to extend the number of voices available for a patch. The
maximum number of voices you can set a Subtractor Patch to use is 99. In the (unlikely) event you should need more
voices, you can always create another Subtractor!
! Note that the Polyphony setting does not “hog” voices. For example, if you have a patch that has a polyphony
setting of ten voices, but the part the patch plays only uses four voices, this won’t mean that you are “wasting”
six voices. In other words, the polyphony setting is not something you need to consider much if you want to
conserve CPU power - it is the number of voices actually used that counts.
About the Low Bandwidth button
This can be used to conserve CPU power. When activated, this function will remove some high frequency content
from the sound of this particular device, but often this is not noticeable (this is especially true for bass sounds).
External Modulation
Subtractor can receive common MIDI controller messages, and route these to various parameters. The following MIDI
messages can be received:
• Aftertouch (Channel Pressure)
• Expression Pedal
• Breath Control
If your MIDI keyboard is capable of sending Aftertouch messages, or if you have access to an Expression Pedal or a
Breath controller, you can use these to modulate parameters. The “Ext. Mod” selector switch sets which of these
message-types should be received.
These messages can then be assigned to control the following parameters:
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Destination
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Description
F. Freq This sets External modulation control of the Filter 1 Frequency parameter. A positive value will increase
the frequency with higher external modulation values. Negative values invert this relationship.
LFO 1 This sets External modulation control of the LFO 1 Amount parameter. A positive value will increase the
LFO 1 amount with higher external modulation values. Negative values invert this relationship.