This Logic Pro breakdown from Mastering.com dives into the Modulator's envelope, the attack, hold, and release stage that shapes how a modulation effect builds, sustains, and fades over time.
Attack controls how fast the envelope kicks in, hold determines how long it sits at that peak, and release sets how it tapers off. There's no decay stage here, just a delay control for when the envelope starts, workable in milliseconds or BPM-locked subdivisions.
Trigger modes switch the envelope between LFO-driven movement and MIDI-note triggering, with envelope-to-LFO rate, steps per pass, and output/offset settings dialing in how deep and wide that modulation swings.
The real payoff comes when this envelope gets mapped to a filter cutoff. Logic's mod-wheel learn function has a catch: the target plugin has to sit below the MIDI plugin on the same channel strip, so an EQ's low-pass filter stands in as the workaround.