Sub
This knob controls the volume of the oscillator s sub-
oscillator. The sub
-
oscillator is a square w
ave which is
one octave lower than the normal oscillator pitch.
The sub
-
oscillator pitch is always connected to the oscillator pitch, so if you detune the oscillator, the sub
-
oscillator detunes along with it.
Spread
This is a special Predator function. If
you open this control knob, a multiple oscillator sound is generated
using one oscillator.
The spread knob controls the level of detuning for these multiplied oscillators.
If you keep spread to 0 level, a normal oscillator is generated.
PWM
PWM stands f
or Pulse Width Modulation. This controls the maximum PWM modulation amount of the LFO
(see
speed
parameter).
PWM alters the symmetry setting (the middle point) of the oscillator over time.
You can use PWM on any waveform, but it is most commonly used with
the square wave where it alters the
pulse width of the waveform.
Speed:
The amount of
PWM
(Pulse Width Modulation) is altered over time by a sine
-
wave LFO.
With speed you control the speed of this LFO.
Of course you need to open the PWM amount to hear
the result of any speed changes.
Volume
With volume you control the volume of the oscillator before it goes into the 'Filter section'.
NB if you set the filter
pre
-
filter distortion
to
edgy
, the volume of the oscillator influences the distortion of the
f
ilter, and so you can add distortion with lower oscillator volume settings.
Output
This controls whether an oscillator is output to the 'filter section'.
With FM and Ring modulation you do not want the modulating oscillator output to be fed into the filte
r.
So with Osc.1 and Osc.2 you have the option to shut off the output to the filter, when you are using them as
a modulation oscillator.
FM Mode
This controls the FM or ring modulation options for Osc 2 and Osc 3. When you use either in FM or ring
modu
lation, you ll need to keep the modulation oscillator
on
but not heard, so you can turn
off
the output of
the oscillator to the filter using the output button.
With FM modulation the oscillator modulates the pitch of the target oscillator, so you get over
tones to the
original sound. With Ring modulation, both oscillators are multiplied together and you get sound that uses a
combination of both sources.
FM Amount
This controls how much the oscillator is frequency or ring modulated.
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