User Manual

3.3.3. ENV 2
Envelopes shape voltage levels over time while you're triggering a note on the keyboard.
While it can be routed to additional places in the MOD Matrix (see below), ENV 2 is always
hardwired to control the MatrixBrute's VCAs. VCA stands for voltage-controlled amplifiers,
which means all the sound sources that appear in the Mixer, i.e. the VCOs and/or any
external signals plugged into the back of the instrument.
Start by raising ENV 2's Attack slider all the way up and down to "catch" the
fader's actual position. Play the keyboard while gradually raising it. This has the
effect of fading in the note. A quarter of the way seems like a reasonable setting.
The middle two stages of the envelope, Decay and Sustain, are set to one-size-
fits-all settings in the initialized patch we started from. Attack is how long it takes
the voltage to fade in to its initial level. From there, Decay sets how long it takes
to glide to its Sustain level.
Now for the Release stage of this 4-stage envelope (Attack/Decay/Sustain/
Release, or ADSR). This sets how fast the note fades out when you release the
key. Again, a quarter of the way up might be a reasonable setting.
Notice how every note plays at the same volume, no matter how hard you play
the keyboard? The Velo/VCA fader lets you dial in how responsive the envelope is
to keyboard
velocity
, which is what electronic keyboards use to determine how
hard you intended to play.
When the slider is all the way down, every note plays at full volume; all the way up, and you
have to slam the keyboard to get it to speak up. See whether you like three quarters of the
way up.
The MatrixBrute has two other Envelopes. ENV 1 is hardwired to the two filters' Cutoffs. It
works the same way, so you can experiment with its effect.
Arturia - User Manual MatrixBrute - Guided Tour 12