[sdiy] filter resonance

[jays at aracnet.com]

John,

Yes and no.

It really depends on the type of filter. Some filters decrease res with more feedback and some increase the res with more. But in general yes putting a VCA in the feedback loop can control the res. Another issue is what type of scale do you want log or linear? Some filters give better control with log scaling on the res some linear.

Has anyone put together anything saying what type of feedback and scaling works best with different filters?

Jay S.

John Mahoney <jmahoney at gate.net> wrote :

> Is increasing a VCF's resonance the same as feeding more of its output
> back to its input? If so, then any filter can have voltage controlled
> resonance by adding a feedback loop with a VCA in it.
> 
> Correct?
> --
> john