[sdiy] ADSR Plus - 8 parameters?

[David G. Dixon]

> Either start delay, a delay before attack, helpful with modulation
> envelopes, or a repeat speed, the envelope keeps cycling as long as the
> gate
> is high. I think with a bit of switchery, the same pot might do both.

I don't know about the microcontroller world, but in analog the AR repeat
time is dependent upon the envelope falling to a certain threshold voltage.
Hence, this doesn't require any control -- just a switch to tell the circuit
that you want it to repeat.

For an overall time control (which I think is cool, and painfully easy to
achieve in analog -- it makes one wonder why it is so seldom seen), you
could use a switch to make one of your time pots into the overall "time
gain" pot momentarily, store this value in memory, and then multiply all of
the times by that value when the switch is not engaged, like the enable on a
latch or something (sorry, I'm thinking in terms of CMOS logic here -- it's
all I know).  That way you wouldn't actually have to add another control.

For the eighth control, count another vote for hold time (between attack and
decay).