AR Envelope Generator

This is a simple non-linear AR envelope generator with scalable output voltage. It provides Re-trigger input which allows re-triggering the envelope in the Single trigger mode.

Inputs

• Gate: The envelope can be triggered at any positive voltage.
• Retrig.: restarts the envelope any time. It only works during the gate is on.

Outputs

• Out: is the output of the envelope signal. The output voltage is scaled by the setting of the output level knob.
• EOA: The End Of Attack output emits 5v gate signal at the end of attack phase. The voltage is fixed and not affected with the output knob.

Knobs

• A: sets attack time up to approximately 10sec. The output voltage rises to roughly 10v at the end of attack phase.
• R: sets release time up to approximately 10sec.
• Output Level: This small knob sets the scaling percentage of output voltage with a discrete value ranged from 10% to 100%. (100% = 10v, 90% = 9v, 80% = 8v...10% = 1v)

Switch

• Envelope Speed (fast/slow): doubles the time of attack, decay and release phases in "slow" setting.