Published on Oct 18, 2019 Martin Doudoroff
"An exhaustive exploration of the ADSR features and behavior of Klavis Quadigy Quad Programmable Envelope Generator for Eurorack modular synthesizers.
Addenda:
• I didn’t realize until after the video was done that the PUNCH parameter is considered part of ATTACK for the purposes of the FULL ATTACK mode; so, with FULL ATTACK turned on, you’ll get at minimum the full attack and punch of the envelope; good to know
• I should have clarified that the time value of the HOLD parameter is relative to gate/trigger on, not relative to the end of DECAY
• I should have clarified that the HOLD parameter can be used in conjunction with gates as well as with triggers; with gates, the HOLD parameter effectively sets the minimum duration of the envelope (not including RELEASE)"
Update: follow-up video:
Klavis Quadigy: Minimoog-style retriggering behavior
Published on Feb 4, 2020 Martin Doudoroff
"Addendum demonstrating how the Klavis Quadigy implements a retriggering behavior reminiscent of the MInimoog."
via Klavis
"The Quadigy is a complex envelope generator focused on live play. The goal is to allow the user setting up rich, interactive and dynamically evolving envelopes without the risk of breaking up a subtle and intricate patch once on stage. This is achieved by offering two main modes, one where full control is available and a Live mode where only the settings that are sensible using on stage are accessible.
Quad 7-stage envelopes
Pre-delay
Hold
Attack
Punch
Decay
Sustain
Release
Continuous curve shape setting
Inversion
Independent output level
Cycle capability with auto fit-to-clock
Elastic time stretching
5 internal clocks with tap tempo
External clock control
Multiply/divide and offset
Individual cycle ext. control
32 presets with naming
External preset control via CV/Trig
Simultaneous 156-point CV matrix
Morphing on presets and CV Matrix
Multi-editing for polyphonic uses
Live mode for easier/safer control
Graphical display
Real-time envelope stages LED indication
Current state retained over power cycle
Easy firmware update via an audio file
Skiff-friendly and compact module
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