[sdiy] 2 queries

[patchell]

Gavin wrote:

> hey all,
> i've got 2 totally unrelated ?'s
> 1. anyone know have understand the tuning procedure for the yamaha CS-40m.
> I know there are some CSersout there!
> 2. AmI correct in thinking that in the basic state variable filter (2 3080's
> etc.)  MORE resistance in the resonance feedback path equals MORE resonance,
> LESS resistance equals LESS resonance?
> thanks

    Yes, in a standard SVF, more resistance (which corresponds to less gain)
decreases the damping (which is what that feedback path really controls), or
increases resonance.

    If you use an OTA for the resonance control...this translates more current,
more damping (lower resonance) less current, less damping (higher resonance),
zero current = oscilator (well, in theory anyway).

>
> G>

--
 -Jim
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