4 HP
25 mm deep
Current Draw
25 mA +12V
25 mA -12V
0 mA 5V

Module is available as a DIY project only.

This Module is currently available.

ADSR Envelope Generator with three Length Modes

ADSR is a classic Envelope Generator creating an envelope with an Attack, Decay, Sustain and Release stage.
It can be triggered with a Gate signal and will ouput the envelope with a range of 0V to +8V on the regular output jack and 0V to -8V on the inverted output jack.

The envelope may be re-triggered using the RTRG input as long as the Gate on the Gate Input is high.

ADSR has three different Length Modes from Slow over Moderate to Fast. The envelope can be very short (20uS) up to very long (110s) making it a useful tool for percussion like sounds and evolving soundscapes. The Moderate Mode is the best option for regular synth sounds.

The LED between the A (Attack) and D (Decay) potentiometer indicates the current state of the envelope.

• ADSR Envelope Generator
• Regular and Inverted Ouput
• Re-Trigger Input
• Three Length Modes
• Snappy from 20 micro seconds until evolving to 110 seconds
• Skiff friendly
• Wrong polarity protection

The module consists of two boards:
• Front PCB Panel
• Main PCB


submitted Apr 20th 2019, 17:53 by Stobbert | last Change Dec 13th 2021, 13:47 by Stobbert

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