The ADDAC220 is a stereo envelope follower that combines analog signal shaping with digital processing to extract dynamic CV and gate information from audio.
Each channel features adjustable gain, clipping detection, and a slew-limited, smoothed CV output that responds with nuanced detail. A digital Savitsky-Golay filter provides low-noise envelope tracking, while the Response Curve control mimics traditional envelope shapes (logarithmic/linear/exponential).
Features
- Stereo or dual mono analog/digital envelope following
- Gain, offset, attack/decay, and curve controls for shaping
- Inverted and averaged CV outputs (+/-10V range)
- Gate output with threshold and visual indicators
- Built-in smoothing and dynamic range mapping
- 12-bit ADC with Savitsky-Golay filtering
- CV range up to 0–10V (or -10 to 0V inverted)
Video: https://youtu.be/lC3vWeToXWY
Product Specs
- Item Number: 37337
- Make: ADDAC System
- Model: ADDAC220 Dual Envelope Follower+
- Condition: Brand New
- Finish: Black
- Categories: keyboards-and-synths ⇒ eurorack
- Made In: Portugal
- MPN: ADDAC220