Typically ADSR sets the attack, decay, sustain, release characteristics of filtering a sound based on exactly how you set the controls. On the other hand an envelope follows the natural attack, decay, sustain, release of of sound and uses those as cues for filtering.
That makes sense, and is what I thought, except there's no way to set the A, D, S, or R when the settings are ADSR, so is there simply a default setting? Or can I change the A, D, S, or R? If not, why the two settings?
I'd be happy to know what the exact preset attack, decay, and release times are (and sustain level / time). I believe that it's the same per-stage values across all algorithms, but it's difficult to tell sometimes.
I've always held out hope that as H9 Control developed, it'd be possible to expose some of these preset values to deeper editing (long before NAMM 2015 and the Source Audio-type Neuro network).
I've found it easier to make macro adjustments to envelope sensitivity without any outside influences (compressor, dirt, locked-in pickup settings, etc.). Then I bring in the other eternal effects for the final tweaks.