Korg Soundlink DRS OASYS PCI Patches & Effects Manual page 210

VPM 2 OP
Ratio
1.0-31.0. This selects the basic tuning for the oscillator. Changing the modulator's
ratio will affect the timbre of the carrier.
Fine
0.0-100.0. This allows you to fine-tune the ratio. You can think of this as the digits to
the right of the decimal. For instance, setting the Ratio to 3.0 and Fine to 53.0 results
in an actual ratio of 3.53. Setting Fine to 100 is the same as increasing the Ratio by 1.
Settings other than 0.0 can cause dramatic differences in the timbre of the carrier.
Detune
+/-10.00. This allows you to detune the oscillator, in cents (1/100 of a semitone).
Settings other than 0.0 can cause dramatic differences in the timbre of the carrier.
Waveform
Sine, Sine + 1st Harmonic, Sine + 1st & 2nd Harm. This sets the waveform for the
oscillator. Changing the modulator's waveform will affect the timbre of the carrier.
Feedback
+/-100. Feedback allows the operator to self-modulate, which changes the shape of
the waveform. At high levels of feedback, the waveform will approach a sawtooth
shape.
Envelope
This envelope allows you to change the level of the modulator over time, which in
turn changes the timbre of the carrier. This affect is conceptually similar to the filter
envelope in an analog synth, although the actual change in timbre can be quite
different.
Attack
0-100. This sets the attack time of the amplitude envelope, which controls how long
it takes from the moment that the key is pressed until the envelope reaches its peak.
Decay
0-100. This sets the decay time of the amplitude envelope, which controls how long
it takes the envelope to fall to the sustain level after the attack is complete.
Sustain
0-100. This sets the sustain level for the amplitude envelope. After the decay time is
complete, the envelope will stay at this level as long as the note is held.
Release
0-100. This sets the release time of the amplitude envelope, which controls how
long it takes the envelope to fall to zero after the note is released.
Level
0.0-100.0. This is the output volume for the operator, which controls the overall
amount of modulation to the carrier.
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VPM
OASYS PCI