ATX1 - ART Analog VCO Crossfader Rise will control the attack

Rise will control the attack and fall controls both the decay and release times

As it is bidirectional

Tweak knobs and enjoy

saw (falling ramp)

ATX1 - ART Analog VCO Crossfader Rise will control the attackATX1 is a classic all analog saw VCO core with 3 switchable modes, ART, 1V Oct, LFO and is recommended as the basic building block for ART systems. It is designed for patching analog polyphonic synths from discrete modules or multi mono patches in ART mode. When using ART the ATX1 takes care of the tuning including accounting for temperature changes. In 1V Oct mode the ATX1 runs as a standard old school modular VCO. LFO mode drops the frequency range