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SergeModular

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Message

Re: Pulse, Sync, Sequencers and Shuffle

2004-04-30 by John Loffink

That's true, if the sequence row out is fed to a DSG tracking 1 volt/octave
you could get very close the sawtooth sync.

I would use a PCO/NTO for the reset pulse. That's where you want the
frequency accuracy. You can use a DSG/DTG for the clock input, but as it
must be a multiple of the step number this will only work for lower notes
due to the DSG/DTG frequency limit around 2 KHz.

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: John P [mailto:johnp299792@...]
> Sent: Thursday, April 29, 2004 7:08 PM
> To: SergeModular@yahoogroups.com
> Subject: Re: [SergeModular] Pulse, Sync, Sequencers and Shuffle
>
> Yes, cool, I was wondering about that.
> You can make a pseudo-saw (staircase) waveform with the sequencer... and
> if you run it thru a slew limiter, you can round things off a little.
>
> Another reset pulse source could be a DSG or DTG.... even the 'smooth'
> part of the SSG can be used as a clock.
>
> John Loffink wrote:
>
> >You could do hard sync by using a sequencer as the waveform generator.
> Feed
> >PCO #1 into the sequencer clock at a multiple of the desired frequency, 5
> x
> >for a 5 step sequence, for instance. Use PCO #2 to reset the sequencer.
> >Output of the sequencer row is your synced waveform. This is limited to
> >pulse step type waveforms, however, while sawtooths tend to be more
> >interesting as hard sync swept waveforms.
> >
> >You may have to invert the PCO sawtooth for it to trigger/reset the
> >sequencer properly, use a comparator/Schmitt trigger, or use the variable
> >pulse out of NTOs.
> >
> >These are a lot of modules to tie up for one effect.
> >
> >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: Scott E. [mailto:yahudinyhwh@...]
> >>Sent: Thursday, April 29, 2004 12:35 PM
> >>To: SergeModular@yahoogroups.com
> >>Subject: Re: [SergeModular] Pulse, Sync, Sequencers and Shuffle
> >>
> >>John,
> >>
> >>You are correct, the DSG must finish it's cycle before it can be
> >>retriggered. The rise and fall times must therefore be set to complete
> >>before the next trigger. This really is not hard sync at all, but as
> >>close as one might come on a Serge, I guess.
> >>
> >>Regards, Scott
> >>========================================================
> >>John P wrote:
> >>
> >>
> >>>And actually, y'know, now that I'm thinking about it, you can't do hard
> >>>sync with a DSG either.
> >>>Doesn't hard sync *force* a waveform cycle to restart with every sync
> >>>pulse input?
> >>>The DSG won't do that. It completes a whole cycle when triggered, it
> >>>doesn't retrigger.
> >>>
> >>>
> >>>
> >
> >
> >
> >
> >
> >Keep on Patchin'!
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
>
>
> Keep on Patchin'!
>
> Yahoo! Groups Links
>
>
>
>

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