2OPFM is a digital 2-operator FM voice in 6HP. It features 2 sine wave oscillators and a decay envelope to control their amplitudes. Perfect for growling percussion and plucky melodies.
: The length of the internal decay envelope. The associated jack is an offset to the slider.
FM: The amount of FM modulation of the carrier. The associated CV input is an offset to the slider.
KHz: The base frequency of the carrier oscillator. The associated CV input is an offset to the pot.
RATIO: The ratio of modulator frequency to carrier frequency.
OP1: The main output.
TRIG: A rising edge triggers the built in decay envelope. This envelope modulates the amplitude of the carrier, as well as the modulator (at a slightly faster rate) Incoming triggers are ignored when the envelope is active, thus allowing for frequency division based on the decay slider.
Note: -12V was left unmarked on the power header on these modules (who would do such a thing?!) The red stripe on your power cable should go DOWN. -12V is DOWN.