SergeModular

Hi John,

thanks a lot for these interesting answers!

Best,
Jan-Hinnerk

--- In SergeModular@yahoogroups.com, John Papiewski <
johnp299792@a...> wrote:

> This is an interesting question. How to do this with the fewest modules.
>
> A comparator by itself isn't enough afaik. It will follow the gate you
> patch into it and output the same thing. So the comparator accomplishes
> nothing. Or if you set the bias negative enough you will get an
> unchanging 0v output.
>
> A DSG or DTG can give you a couple things... send the gate into the trig
> input and set the rise/fall times to fastest and you get a spike at the
> output jack. Note that this is not a fast rectangular pulse but a spike
> with steep sides. At the GATE output you'll have an inverted pulse -
> normally +5v, dropping to 0v for an instant when the incoming gate
> signal goes high, then returning to +5v.
>
> So here's a handful of ways to do it but they all need 2 modules:
> 1. Send gate to trig input of DSG with rise/fall time set to minimum.
> Send DSG output to comparator.
> 2. Send gate to input of an audio mixer module. Send the output to a
> comparator.
> 3. Send the gate to trig input of DSG as above. Send DSG gate output to
> an inverter in a BLOG.
> 4. Send gate to trig input of DSG as above. Send DSG gate output to a
> processor module set & biased to invert the signal.
>
> I can't think of many reasons why I'd need a short rectangular pulse
> from a gate. If I want to do percussion I'd just patch it into trig of
> DSG and use the DSG's output for enveloping. Or patch it into trig in
> of VCFQ for a variety of percussive effects.
>
> Ditto for using a gate to advance a sequencer stage or sample/hold.
> It'll work fine, you won't need a pulse.
>
> A couple side-notes... you can use the comparator to generate pulses to
> trigger envelopes for arbitrary quantizer transitions. If you feed a
> slow sinewave into a quantizer to get a rising/falling staircase a
> comparator can be used to compare the incoming & outgoing voltage of the
> quantizer and generate a trigger anytime the quantizer output changes.
> Very handy.
>
> Also, did you know the trig button on the random source creates a trig
> output on the trig jack? Not a gate but a fast pulse.
>
> Now back to your patching, all of you ;)
>
> JP
>
> cuari7 wrote:
> > --- In SergeModular@yahoogroups.com, "metafoetus2002" <jan-
> > hinnerk.helms@t...> wrote:
> >
> >>Hm. Does anybody have an idea how to turn a gate signal into a
> >
> > trigger signal
> >
> >>in the Serge?
> >
> >
> >
> > I would think/hope with the comparators.
> > My next 2 panels will have a couple of those, mostly to add
> > squares/pulse/PWM to the PCO's, but maybe I could use them to turn a
> > gate into a brisk, short-lived trigger.
> > What do you think, forum elders?
> >
> > cuari
> >
> >
> >
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> >
> > Keep on Patchin'!
> >
> >
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> >
> >
> >