Effect 6: Ring Modulator

Plug an external audio source into INPUT and bring up the INPUT fader. Effect set-up from the manual: DRONE mode, LP filter, minimal resonance, CUTOFF fader all the way up. The PITCH fader sets the ring modulation's carrier. Alternatively, TRI into Y and XY into ACCENT to control the amount; use PULSE (or mix it with TRI in XY) for a harsher sound. Control the oscillator from the sequencer or MIDI.

Source: Softpop SP2 manual (Bastl Instruments), Effect Patch Ideas, page 44.