FVC - Polyphonic Four Voice Controller for Eurorack
Eurorack version designed for Behringer 2-XM (Works with any MIDI equipped synth with 0-10V CV inputs) Envelope - ADSR plots There are no Digital to Analogue Converters -DACs used in this design. The only additional components on the FVCs are op-amps to boost the 5v output to 10V. The ProMicro supports analogue output using PWM. If this happens at a very high frequency the output is very smooth. The output is filtered with a simple RC filter and there is no digital noise picked up by the synth. The Attack is 0-10s with Decay and Release up to 15s. The envelope is exponential. Here are some plots from various ADSR settings: Basic Version - No CV Control FVC-1 Four Voice Controller with Keyboard Logic and Faux Vibrato All functions are controlled with CC numbers so you need a controller keyboard Polyphonic control of 4 MIDI chann...