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SergeModular

Index last updated: 2026-04-28 23:13 UTC

Message

Re: Filter comparisons

2002-12-06 by fdisynth

Hi. Wich is the bandwidth range of the variable BP VCF? It is very
tight when closed at max? Say 10Hz? And wich is it's the slope in
dB/oct?
Fernando




--- In SergeModular@y..., "Carbon111" <carbon111@c...> wrote:
> > > The VCFS also has an -18db / Oct slope for sounds with
more bite
> > > than the -12db filters.
> >
> > Is that really true? All the VCFSs I've seen have only two
> > stages, giving a final slope of -12dB/octave. I was under
> > the impression that the "real" slope could only be varied
> > between -6B/oct and -12dB/.oct and that higher "slopes"
> > were achieved by internally raising the resonance. The
> > catalogue seems to indicate this too. Anyone know the
> > truth?
>
> I'm just going on what Rex told me.
>
> With the slope control at max, the resonance is boosted a little
bit but not
> enough to notice much - the Serge filters tend to be very well
behaved
> (unless patched to be unruly) ^_^
>
> The catalog may not be the best place to look for confirmation
as they have
> the -12db and the -6db slope labels reversed. ;)
>
> Regards, James
> --
> My Waldorf MicrowaveXT page:
> http://www.carbon111.com/mwxt.html
> My Gallery:
> http://www.carbon111.com

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