In a message dated 3/31/2001 12:14:29 PM,
ken.tkacs@... writes:
>How about instead of VC of Sustain level, you have VC of sustain "leakage"
>(obviously one would come up with a nicer name). At 0v to the CV input,
>Sustain stays high forever (as long as the gate is high), just as with
>any
>normal ADSR. But with more voltage applied, the sustain starts to droop,
>to
>simulate natural loss-of-energy in some physical systems more closely.
>
>Maybe you would reverse the CV so that low is high droop, I don't know.
>That
>might make more sense.
>
>I've always thought this to be a natural idea, but haven't seen it on any
>commercial ADSR. In fact, I only ever saw this type of "drooping" on one
>design a while ago, and it may have been one of JH's brain-children...can't
>remember right now.
>
I have to admit, I find this idea much more interesting than a basic VC
sustain level (since I can see little use for increasing the sustain level
over time). I know the old Digisound (it just occurred to me how strange that
name sounds -- "the sound of digital, with the affordability of analog!")
line had a CEM 3310 based EG (or was it a dual EG) that had a couple of
different modes. One of those modes involved a second VC Decay stage which
decayed to the sustain level. I remember this as having a fair number of
components even with the 3310. I could snail you a copy of the schematic and
docs if it ain't already up somewhere.
Good idea, Ken!
JB