Arturia MatrixBrute User Manual page 40

In all three envelopes:
• Attack sets the time, from 2ms to more than 10 seconds, the voltage
takes to reach its initial level;
• Decay adjusts the time, again from 2ms to more than 10 seconds, it
takes the voltage to go from its initial level to the Sustain level;
• Sustain is the level the signal settles at after it decays. This level is
usually lower than the initial level (hence "decay"), however it can also
be the same - in which case the Decay setting has no effect. It can also
be all the way down, for example if you're programming percussive
sounds, in which case the Release setting has no effect.
• Release is the time it takes the voltage to fade all the way down after
you release the key that's triggering the sound.
• Velo/VCF and Velo/VCA (ENV 1 and ENV 1 only): You can tune ENV
1's and ENV 2's response to key velocity, i.e. the "louder" you play,
the higher the signal voltage. (Unlike pianos, electronic keyboards
measure how fast a key travels - its velocity - to determine how loudly
you intended to play.)
• Velo/VCF (ENV 1 only) This slider offsets the ADSR levels so velocity has
no effect when it's all the way down; the higher you raise it, the more
velocity is required to reach the maximum filter Cutoff level.
• Velo/VCA (ENV 2 only) When this slider's all the way down, the VCOs
sound at their maximum level, no matter how hard or softly you play;
raise the slider to increase the keyboard velocity response.
• ENV 3 is slightly different in two ways. First, it doesn't do anything
until it's assigned in the Matrix. Second, it runs through its stages
independently of keyboard velocity (although you can modulate its
stages in the Matrix).
34 Arturia - MatrixBrute Manual - Operation