2OPFM

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.    Power Requirements: +12V: 45mA -12V: -5mA  While the look of 2OPFM has changed, this demo video from version 1 modules still is a great int