[sdiy] VCO - sine output - why bother?

Roman Sowa modular at go2.pl
Fri Aug 26 11:05:37 CEST 2016


if you're going that route then why do you think VCF is simpler than 
sine waveshaper, even if it uses OTA? VCF will usually take 4 OTAS.

Roman

W dniu 2016-08-26 o 10:30, Steve pisze:
>
> Now I'm not a super synth expert, also not in sound design with such.
> What I've always wondered, if I look at VCO circuits, why people go to
> the lenghts that they do wave-shaping a more or less pure sine as a
> waveform output, my heart ached when I saw a circuit that used an OTA +
> yet other stuff just for that.
> What more does a dedicated sine output provide that one can't get with
> using triangle -> lowpass VCF with keyboard tracking on? So maybe it
> doesn't shave off all harmonics totally, but is the sound difference
> really that big?
>
> Steve
>
> *Gesendet:* Freitag, 26. August 2016 um 06:42 Uhr
> *Von:* "David G Dixon" <dixon at mail.ubc.ca>
> *An:* "'Quincas Moreira'" <quincas at gmail.com>, "'Richie Burnett'"
> <rburnett at richieburnett.co.uk>
> *Cc:* "'synth-diy DIY'" <synth-diy at dropmix.xs4all.nl>
> *Betreff:* Re: [sdiy] SAW core VCO flyback time
> I stopped building sawcore VCOs because I didn't like flyback.  That's
> why I only build tricores now, and shape them into saws.  They sound
> better anyway, and sync in a more interesting way.
>
>
>     ------------------------------------------------------------------------
>     *From:* Synth-diy [mailto:synth-diy-bounces at dropmix.xs4all.nl] *On
>     Behalf Of *Quincas Moreira
>     *Sent:* Thursday, August 25, 2016 5:41 PM
>     *To:* Richie Burnett
>     *Cc:* synth-diy DIY
>     *Subject:* Re: [sdiy] SAW core VCO flyback time
>
>
>     crickets....
>
>     lol.  I wish I was enough of a badass designer to be able to brag on
>     this thread ;)
>
>
>     Cheers
>
>     -Quincas
>
>     On Tue, Jul 5, 2016 at 7:10 AM, <rburnett at richieburnett.co.uk> wrote:
>
>         What sort of reset times are people getting with their
>         sawtooth-core analogue VCO designs?
>
>         I'm curious what figure is the current state of the art.
>
>         -Richie,
>         _______________________________________________
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>         Synth-diy at dropmix.xs4all.nl
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>
>
>
>     --
>     Quincas Moreira
>     Test Pilot at VBrazil Modular
>
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