•
The
sustain
stage starts at the end of the decay phase, and remains at the
sustain value long as a keyboard key is held down or a gate signal remains
full on. The sustain level is variable between zero (no sustain) and the
envelope’s maximum value.
•
Finally, the
release
stage starts upon releasing the key, and sets the amount
of time for the level to decrease from the sustain level down to zero.
4.1.6 Player interface
To play a tune with your synthesizer, as a player you need a player interface. The
MiniBrute provides you with a two-octave, piano-type keyboard. Besides offering a
way to play notes, this keyboard provides additional controls for adding
expressiveness:
•
Aftertouch
generates a signal that corresponds to how hard you press on a
key after it’s down. You can use this signal to modulate vibrato, filter cutoff,
and other parameters.
•
Velocity
corresponds to the dynamics of your playing, and similarly to
aftertouch, can modulate multiple parameters.
•
Transposition
allows shifting the keyboard’s note range over six octaves.
•
The
pitch bend
wheel allows adding real-time pitch changes, like bending
strings on a guitar.
•
The
modulation
wheel allows applying real-time modulation changes to
various parameters. For example, it could add vibrato, or change the filter
cutoff as you move it.
•
An
arpeggiator
automates the creation of repeating sequences of notes.
Alternative ways of playing the synthesizer are available through MIDI control and
external CV/GATE signals.
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4 General description
