Filter envelope
Let the filter open on every note.
Lesson 2 of 2
Instead of moving the cutoff by hand, an envelope can move it on every note: the filter opens when the note starts, then closes again. That gives each note a bright, plucky attack.
A plucked sound
Move Env>Filt and Decay 2.
Drag the squares on the envelope, or turn the knobs: they move together.
Env>Filt+4.0 oct
Decay 2250 ms
Sustain 20%
Env>Filt sets how far the envelope opens the filter, in octaves above the cutoff. At zero nothing happens; turn it up and every note starts brighter.
Decay 2 is how quickly the filter closes again: short for a pluck, long for a slow sweep. Sustain 2 is how far open it stays while the note is held. On Drift this is Envelope 2, separate from the volume envelope.