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SergeModular

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Re: True AD EG

2004-09-11 by John Loffink

Without the inverting/bias stage this results in a gate voltage that is
high 99% of the time, rather than low.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: James R. Coplin [mailto:moog@...]
> Sent: Friday, September 10, 2004 8:53 PM
> To: SergeModular@yahoogroups.com
> Subject: RE: [SergeModular] Re: True AD EG
>
> The main problem is trying to change the clock as a gate stream to a pulse
> stream to avoid the sustain stage of the USG. I just took the gates from
> the
> clock or whatever into the trigger in on one part of the USG with the
> attack
> and decay set to zero. Take the output of this input the input of the
> other
> part of the USG and set your slopes accordingly. The attack time of the
> first usg seemed plenty fast to not have to use the gate and go through an
> inverter etc. Any objections to this approach?
>
> As an aside, if you are using the USGs as a envelope with a sustain stage,
> the level of the sustain is equal to the voltage present at the input.
> Sticking an attenuator on your gates gives nice control of the height. I'm
> particularly fond of running the gates through a vca of some sort using a
> sin to set the envelope height.
>
> Another good USG envelope trick is to use you sequencer outs to control
> "chains" of sustain stages for more complex envelope shapes!
>
> I probably should invest in a whole panel of USGs at some point as they
> are
> by far my favorite module on the whole planet in any system!
>
> James R. Coplin
> ***************
> If anyone asks of my whereabouts,
> simply tell them i've gone out the window
> for a spot of tea and am not
> expected back any time soon.
> ***************
> > -----Original Message-----
> > From: John Loffink [mailto:jloffink@...]
> > Sent: Friday, September 10, 2004 8:28 PM
> > To: SergeModular@yahoogroups.com
> > Subject: RE: [SergeModular] Re: True AD EG
> >
> > Here's the patch. It will take two stages of a DTG or DSG with the post
> > 1994 GATE OUTs as opposed to the old END out, as well as a scaling
> > processor
> > stage.
> >
> > GATE to TRIG IN on first DSG stage, set Rise/Fall to short values. GATE
> > OUT
> > gives an inverted trigger.
> >
> > GATE OUT of first DSG stage to Scaling Processor INPUT2, Bias with +5V
> on
> > Input 1 and full invert of INPUT2 (you could also use a Dual Processor).
> > This gives a positive biased trigger.
> >
> > OUTPUT of Scaling Processor to second DSG stage INPUT. OUTPUT is your
> > triggered AD. Set Rise and Fall to taste, but if Fall exceeds the time
> > between GATES then you'll get envelopes that retrigger at the falling
> > slope
> > point, which is normal retriggerable envelope action.
> >
> > John Loffink
> > The Microtonal Synthesis Web Site
> > http://www.microtonal-synthesis.com
> > The Wavemakers Synthesizer Web Site
> > http://www.wavemakers-synth.com
> >
> >
> > > -----Original Message-----
> > > From: cuari7 [mailto:medejd@...]
> > > Sent: Friday, September 10, 2004 7:47 PM
> > > To: SergeModular@yahoogroups.com
> > > Subject: [SergeModular] Re: True AD EG
> > >
> > >
> > > Actually feeding the gate into the input jack gives you
> > > an "attack/release envelope, with sustain that is present for as
> > > long as the key is depressed (so its actually an
> > > attack/sustain/release envelope). What I want is something that will
> > > allow me to get attack/release (up/down) even if I keep pressing the
> > > key. This is excellent for percussive, staccatto notes. I know of at
> > > least 2 synths which allow this option: the Moog Sonic Six and the
> > > Buchla 200 (the Quad Function generator). They lett you choose
> > > between A/D or A/R envelopes.
> > > To better understand what I mean, take a conventional ADSR, the
> > > program the following: Attack time: 0, Decay time: 50%, Sustain: 0,
> > > Release time: 0. This gives you nice percussive notes (keep in mind
> > > I don't use sequencers; only keyboards and body appendages ;-D...).
> > > So, any ideas?
> > > I kow there's a modification for the MOTM lag processor which allows
> > > the same options (making it a VC-AD/AR EG. Kewl!!).
> > > I just wish somebody came up with an idea to do the same for the
> > > DSG. It would make it the PERFECT module!!
> > >
> > > cuari7
> > >
> > > PS: Panel still FS....
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Keep on Patchin'!
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> > Keep on Patchin'!
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
>
>
>
>
> Keep on Patchin'!
>
> Yahoo! Groups Links
>
>
>
>

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