Korg Opsix Owner's Manual page 42

When "MODE" is set to RING (Ring Modulation)
This uses AM (amplitude modulation) to multiply the input signal from the modulator with the
oscillator.
DEPTH (Ring Depth)
Sets the balance between the ring modulator and oscillator signals. A setting of 100% outputs only
the ring modulator signal, and a setting of 0% outputs only the oscillator signal.
SHAPE
This is used to rectify the input signal from the modulator. A setting of 50% rectifies the waveform
halfway, and a setting of 100% produces a fully rectified waveform. The higher the value, the brighter
the tone will sound.
When "MODE" is set to FLTR (Filter)
Filters the input signal to cut out a specified tonal range. You can also mix in the oscillator sound for
output. The cutoff frequency works in conjunction with the oscillator pitch.
TYPE (Filter Type)
Sets the type of filter used in the Operator.
OSCMIX (OSC Mix Level)
Sets the oscillator level inputted into the filter.
CUTOFF (Cutoff)
Although the filter cutoff frequency works in conjunction with the oscillator pitch, you can use this
parameter to add an offset. This is set in semitones.
RESO (Resonance)
Emphasizes the frequencies around the cutoff frequency.
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