[sdiy] ADSR Plus - 8 parameters?

[Matthias Herrmann-DEU]

> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
> bounces at dropmix.xs4all.nl] On Behalf Of Andre Majorel
> Sent: Thursday, February 03, 2011 11:28 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] ADSR Plus - 8 parameters?
> 
> On 2011-02-03 18:43 +1030, Matthew Smith wrote:
> 
> > I've figured out my digital ADSR generator - microcontroller feeds
> > DAC, is controlled by an 8-input SPI ADC connected to a set of 8
> > pots. (This section nicked from my notes on how I might build a
> > replacement for a Roland PG-800.)
> >
> > 7 pots accounted for:
> >
> > * Attack time
> > * Attack shape (straight line, curving inwards)
> > * Decay time
> > * Decay shape (as above)
> > * Sustain level
> > * Release time
> > * Release shape (ditto)
> >
> > As I have an extra channel going spare, is there another useful
> > parameter I could put in there, bearing in mind that I'm not going
> > to be doing aftertouch?
> 
> VC input. Every volt above 0 divides attack time, decay time and
> release time by 2. Every volt below 0 multiplies by 2.
> 
> --
> André Majorel http://www.teaser.fr/~amajorel/

An overall time control! Great.