Korg Soundlink DRS OASYS PCI Patches & Effects Manual page 202

Percussion Synth 2
Noise EG. This adds noise to the output; you can control the timbre of the noise
using the controls under Noise Color, below. The noise has a dedicated envelope,
whose decay time is controlled by the Speed knob. The Depth knob controls the
level of the noise. The pitch of the oscillator will not be modulated.
Envelope. The oscillator pitch will be modulated by a simple envelope, whose
decay time is controlled by the Speed knob. The Depth knob controls the amount of
pitch modulation. When using negative Depth settings, you may need to set the
oscillator Pitch fairly high.
Speed
0.0-100.0. The Speed control changes in meaning according to the Type selection.
With Saw, Square, Triangle, and Random, the Speed sets the frequency of the LFO.
With Noise EQ and Envelope, the Speed sets the envelope decay time.
Depth
0-100. The Depth control changes in meaning according to the Type selection. With
Saw, Square, Triangle, Random, and Envelope, the Depth sets the amount of pitch
modulation. With Noise EQ, the Depth sets the amount of the noise added to the
oscillator output (in addition to the level set under Noise, below).
Noise
This section controls the timbre of the noise generator, and also affects the sample-
and-hold LFO when the Oscillator Pitch Mod Type is set to Random. The filter
settings do not affect the timbre of the oscillator.
Filter
Lowpass, Bandpass, Bandstop, Highpass. This controls the type of filter dedicated
to the noise generator.
Cutoff
0-100. This controls the cutoff frequency of the filter dedicated to the noise
generator.
Resonance
0-100. This controls the resonance of the filter.
Level
0-100. This sets the volume level of the noise generator.
Amplifier
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.
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Percussion
OASYS PCI