<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div><br/>
well not a dedicated VCF, but one that you already have in the usual chain. That's why it looked to me like a lot of effort for dubious gain - but since it is so common, there had to be a good reason, which is why this thread exists. :)<br/>
Probably I'm thinking more in terms of voicecard, while the other reply I already got on this thread and yours are more in the realm of "modular and free" ;-)<br/>
(or / and I just haven't seen enough architecture differences in typical fixed-topology synths, I've only seen a few, all rather similar, and assumed "this is how it's done")<br/>
<div>
<div>Then again, when I think in the box of "subtractive synthesis", in a strict sense anyway, the suggestions of using a single sine wave to add a fundamental after a VCF feels kinda odd :-D<br/>
I guess users of more complex (routing wise) synths have more tricks like that up their sleeves, which kinda forms this idea in my mind that next to my imagined designs to build there needs to be more room for MUX ICs on the PCB...</div>
<div> </div>
<div>Steve<br/>
</div>
<div style="margin: 10.0px 5.0px 5.0px 10.0px;padding: 10.0px 0 10.0px 10.0px;border-left: 2.0px solid rgb(195,217,229);">
<div style="margin: 0 0 10.0px 0;"><br/>
<b>Von:</b> "Roman Sowa" <modular@go2.pl><br/>
if you're going that route then why do you think VCF is simpler than<br/>
sine waveshaper, even if it uses OTA? VCF will usually take 4 OTAS.<br/>
<br/>
Roman<br/>
<br/>
W dniu 2016-08-26 o 10:30, Steve pisze:<br/>
><br/>
> Now I'm not a super synth expert, also not in sound design with such.<br/>
> What I've always wondered, if I look at VCO circuits, why people go to<br/>
> the lenghts that they do wave-shaping a more or less pure sine as a<br/>
> waveform output, my heart ached when I saw a circuit that used an OTA +<br/>
> yet other stuff just for that.<br/>
> What more does a dedicated sine output provide that one can't get with<br/>
> using triangle -> lowpass VCF with keyboard tracking on? So maybe it<br/>
> doesn't shave off all harmonics totally, but is the sound difference<br/>
> really that big?<br/>
><br/>
> Steve<br/>
><br/>
> *Gesendet:* Freitag, 26. August 2016 um 06:42 Uhr<br/>
> *Von:* "David G Dixon" <dixon@mail.ubc.ca><br/>
> *An:* "'Quincas Moreira'" <quincas@gmail.com>, "'Richie Burnett'"<br/>
> <rburnett@richieburnett.co.uk><br/>
> *Cc:* "'synth-diy DIY'" <synth-diy@dropmix.xs4all.nl><br/>
> *Betreff:* Re: [sdiy] SAW core VCO flyback time<br/>
> I stopped building sawcore VCOs because I didn't like flyback. That's<br/>
> why I only build tricores now, and shape them into saws. They sound<br/>
> better anyway, and sync in a more interesting way.<br/>
><br/>
><br/>
> ------------------------------------------------------------------------<br/>
> *From:* Synth-diy [mailto:synth-diy-bounces@dropmix.xs4all.nl] *On<br/>
> Behalf Of *Quincas Moreira<br/>
> *Sent:* Thursday, August 25, 2016 5:41 PM<br/>
> *To:* Richie Burnett<br/>
> *Cc:* synth-diy DIY<br/>
> *Subject:* Re: [sdiy] SAW core VCO flyback time<br/>
><br/>
><br/>
> crickets....<br/>
><br/>
> lol. I wish I was enough of a badass designer to be able to brag on<br/>
> this thread ;)<br/>
><br/>
><br/>
> Cheers<br/>
><br/>
> -Quincas<br/>
><br/>
> On Tue, Jul 5, 2016 at 7:10 AM, <rburnett@richieburnett.co.uk> wrote:<br/>
><br/>
> What sort of reset times are people getting with their<br/>
> sawtooth-core analogue VCO designs?<br/>
><br/>
> I'm curious what figure is the current state of the art.<br/>
><br/>
> -Richie,<br/>
> _______________________________________________<br/>
> Synth-diy mailing list<br/>
> Synth-diy@dropmix.xs4all.nl<br/>
> <a href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br/>
><br/>
><br/>
><br/>
> --<br/>
> Quincas Moreira<br/>
> Test Pilot at VBrazil Modular<br/>
><br/>
> _______________________________________________ Synth-diy mailing list<br/>
> Synth-diy@dropmix.xs4all.nl<br/>
> <a href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br/>
><br/>
><br/>
> _______________________________________________<br/>
> Synth-diy mailing list<br/>
> Synth-diy@dropmix.xs4all.nl<br/>
> <a href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br/>
><br/>
_______________________________________________<br/>
Synth-diy mailing list<br/>
Synth-diy@dropmix.xs4all.nl<br/>
<a href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a></div>
</div>
</div>
</div></div></body></html>