ADDAC System ADDAC220 Dual Envelope Follower+

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