<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">regarding reversing sync, i imagine the output amplitude will drop if the sync input exceeds the oscillator base frequency (just like the common DCO design problem)<div><br></div><div>am i misguided or is this a problem that has to be addressed while designing a soft-syncable oscillator?<br><br><div id="AppleMailSignature">Sent from outer space</div><div><br>On Dec 18, 2018, at 12:12 PM, Mattias Rickardsson <<a href="mailto:mr@analogue.org">mr@analogue.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">I'd rather define it like:<div><br></div><div>"Hard sync" syncs the slave every time,</div><div><br></div><div>"soft sync" syncs the slave sometimes, i.e., when it has completed enough of its cycle.</div><div><br></div><div>Then the actual sync type in both these above sync methods can be either "reset sync" or "reversing sync".</div><div><br></div><div>/mr</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, 18 Dec 2018 at 06:45, Michael E Caloroso <<a href="mailto:mec.forumreader@gmail.com">mec.forumreader@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">"Hard sync" means that the charging core is prematurely reset by an<br>
external trigger. It is intended to create a complex waveshape with<br>
altered harmonics. By altering the frequency of the sync'd VCO above<br>
that of the master VCO, you sweep the harmonics.<br>
<br>
"Soft Sync" means the slave VCO is oscillating at the same frequency<br>
of the master VCO.<br>
<br>
MC<br>
<br>
On 12/17/18, Tim Ressel <<a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a>> wrote:<br>
> Hi,<br>
><br>
> I have made a triangle core oscillator that works really well except for<br>
> the sync. I implemented what I thought would be hard and soft sync but<br>
> the results were disappointing. As I understand it my "hard sync" is<br>
> known as "reversing sync" i.e. a rising edge causes the steering flip<br>
> flop to change state and thus the wave reverses. My "soft sync" changes<br>
> the upper set point on the window comparator.<br>
><br>
> I would like the soft sync to sound like the Doepfer A-110-2 oscillator<br>
> soft sync if possible. Thoughts?<br>
><br>
> --<br>
> --Tim Ressel<br>
> Circuit Abbey<br>
> <a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a><br>
><br>
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