Doesn’t do what you might think. For instance with LFO modulating Vol it gives a nice controllable attack, which can then be varied with LFO Fde and Sph. Works nicely with tone machine, also usable with kick with interesting interactions with the initial pitch sweep of that machine when LFO Dest is also set to pitch.
Does my head in trying to mentally picture what start phase might be doing with a one-shot envelope running in reverse but the results are usable.
Sample LFO settings to start:
Speed: -64
Rst: On
Fde: 0
Sph: 24
Wav: Env
Mul: 64
Dst: DIST
Dep: 64
Track Decay: 80
Track Volume+Dist: 0