Doepfer

Also, the Sherman filterbank uses switched capacitor
filters. I like this filterbank because it has a very
distinct sounding, possibly due to the SC-filters, but
they are not extremely steep. However there is a lot
of bleed trough from the clock signal and some
aliasing type behaviour. It really makes a lot of
additional noises. Therefore the Sherman is more
suitable to process electronic things than it is to
process acoustical sounds. That's why I often build a
patch on the a100, much like the sherman but without
the noises.... 

regards,
Christophe

--- Florian Anwander <Florian.Anwander@consol.de>
wrote:

> Hi Bakis
> 
> > it's a Switched Capacitor filter. don't ask me
> though
> > anything more, i do not know. i guess that it
> sounds
> > quite different from the other filter modules?
> dieter?
> All early Akais samplers (S612, S700, S900, S950)
> used switched 
> capacitor filters.
> A SC-Filter can (but must not) be very steep (e.g.
> 96db/Oct). It is not 
> very easy to describe the sound. It sounds like a
> 12dB filter set to 
> high resonance, but without the feedback sound (if
> you can imagine that).
> 
> Regarding the function. With a quick google I found
> a very nice 
> explanation in german: 
>
http://www.elektronik-kompendium.de/public/schaerer/scf1.htm
> 
> And another in english but not as good
> understandable and more mathematical:
>
http://www.swarthmore.edu/NatSci/echeeve1/Ref/FilterBkgrnd/SwitchedCap.html
> 
> 
> Florian
> 



		
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