[sdiy] VC Resonance

[Oscar Salas]

Here a very interesting article by Sergio Franco explaining it with OTAs
www.yusynth.net/archives/ElectronicDesign/S-Franco-OTA-VCF-1974.pdf
Actually I'm designing a filter which I want implement that with VCAs.
Oscar.
--- On Sun, 9/12/10, Tim Ressel <madhun2001 at yahoo.com> wrote:

> From: Tim Ressel <madhun2001 at yahoo.com>
> Subject: Re: [sdiy] VC Resonance
> To: "David G. Dixon" <dixon at interchange.ubc.ca>, "sdiy DIY" <synth-diy at dropmix.xs4all.nl>
> Date: Sunday, September 12, 2010, 10:33 PM
> Allow me to up the ante:
> 
> Increasing Q also increases gain, which causes clipping.
> Would it be 
> advantageous to place another VCA in front of the filter to
> decrease the signal 
> for increasing Q? Paia did this (manual Q pot, not VCA) on
> their 4700 series 
> filter.
> 
> --tr
>  
> 
> 
> 
> 
> ----- Original Message ----
> From: David G. Dixon <dixon at interchange.ubc.ca>
> To: sdiy DIY <synth-diy at dropmix.xs4all.nl>
> Sent: Sat, September 11, 2010 10:51:37 PM
> Subject: [sdiy] VC Resonance
> 
> Pretty slow day on the list...
> 
> I'm in the process of organizing yet another 2164-based
> filter module, and
> I'd like to do a little survey, if I may.  Here's the
> question:
> 
> How important is voltage-controlled resonance to you? 
> Do you make much use
> of it, and if so, how?
> 
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