[sdiy] Modulated ADSR Generator

[James Coplin]

> We had a discussion on the merits of various paramters back in February.
> (I'd forgotten that Andre Majorel suggested CV input back then.)
>
> Parameters for the knobs would be:
>
> * Attack time
> * Attack shape
> * Decay time
> * Decay shape
> * Hold level
> * Sustain level
> * Release time
> * Release shape
>
> ...of which you get to assign six. I *could* do an analogue multiplex

IMO, the only ones useful enough to bother with are (in order of my
perceived importance):
*Release time
*Decay time
*Attack time
*Sustain level

I have several CV enabled envelopes and quite frankly I hardly ever mod
them anyway.  I think having an elegant implementation that doesn't
require a massive panel for functions that aren't essential would be a
better physical design.  Just because you *can* control something doesn't
mean you actually should or that the effort spent on implementation yields
useful performance results in the end.  Just my opinion.

James R. Coplin