
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 key-
board 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 fea-
tures very comprehensive velocity 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 representing 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 positive value is set, the volume will increase the harder
you strike a key. A negative value inverts this relationship, so
that the volume decreases 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 values invert this relationship.
M. Env This sets velocity control for the Mod Envelope Amount pa-
rameter. 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 re-
tained. A positive 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 parame-
ter. A positive value will increase the filter frequency the
harder you play. Negative values invert this relationship.
F. Env This sets velocity control for the Filter Envelope Amount pa-
rameter. 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 pa-
rameter. A positive value will increase the Decay time the
harder you play. Negative values invert this relationship.
Osc Mix This sets velocity control for the Osc Mix parameter. A posi-
tive value will increase the Osc 2 Mix amount the harder you
play. Negative values invert this relationship.
A. Attack This sets velocity control for the Amp Envelope Attack param-
eter. A positive value will increase the Attack time the harder
you play. Negative values invert this relationship.
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