
SUBTRACTOR SYNTHESIZER
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Play Parameters
This section deals with two things: Parameters that are affected by how you play, and
modulation that can be applied manually with standard MIDI keyboard controls.
These are:
• Velocity Control
• Pitch Bend and Modulation Wheel
• Legato
• Portamento
• Polyphony
Velocity Control
Velocity is used to control various parameters according to how hard or soft you play
notes on your keyboard. A common application of velocity is to make sounds brighter
and louder if you strike the key harder. Subtractor features very comprehensive veloc-
ity modulation capabilities. By using the knobs in this section, you can control how
much the various parameters will be affected by velocity. The velocity sensitivity
amount can be set to either positive or negative values, with the center position repre-
senting no velocity control.
The following parameters can be velocity controlled:
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Destination
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Description
Amp This let’s you velocity control the overall volume of the sound. If a pos-
itive value is set, the volume will increase the harder you strike a key.
A negative value inverts this relationship, so that the volume de-
creases if you play harder, and increases if you play softer. If set to
zero, the sound will play at a constant volume, regardless of how hard
or soft you play.
FM This sets velocity control for the FM Amount parameter. A positive
value will increase the FM amount the harder you play. Negative val-
ues invert this relationship.
M. Env This sets velocity control for the Mod Envelope Amount parameter. A
positive value will increase the envelope amount the harder you play.
Negative values invert this relationship.
Phase This sets velocity control for the Phase Offset parameter. This applies
to both Osc 1 & 2, but the relative offset values are retained. A posi-
tive value will increase the phase offset the harder you play. Negative
values invert this relationship.
Freq 2 This sets velocity control for the Filter 2 Frequency parameter. A pos-
itive value will increase the filter frequency the harder you play. Nega-
tive values invert this relationship.
F. Env This sets velocity control for the Filter Envelope Amount parameter. A
positive value will increase the envelope amount the harder you play.
Negative values invert this relationship.
F. Dec This sets velocity control for the Filter Envelope Decay parameter. A
positive value will increase the Decay time the harder you play. Nega-
tive values invert this relationship.
Osc Mix This sets velocity control for the Osc Mix parameter. A positive value
will increase the Osc 2 Mix amount the harder you play. Negative val-
ues invert this relationship.
A. Attack This sets velocity control for the Amp Envelope Attack parameter. A
positive value will increase the Attack time the harder you play. Nega-
tive values invert this relationship.
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