Envelope Generator for Wind Controller

Features

• Receives MIDI channel 1
• Two-channel output for VCA (exponential curve) and VCF (linear curve)
• Four analog input parameters, 0-5V, 1023 steps:
  1. Attack
  2. Decay
  3. Total Level
  4. Reserved
• Three control modes, rotated by control switch: BOTH -> VCF -> VCA
• Reads NOTE ON/OFF with velocity and BREATH CONTROL in MIDI messages

Schematic