SV: Re: SV: Re: [sdiy] Nonlinearities in IR3109 filters

[karl dalen]

--- Magnus Danielson <cfmd at bredband.net> skrev:


> > For instance many folks says (2pole SVF type ) SEM filter cant resonate
> > in sinus, ofcourse it can.
> 
> I agree. It is designed not to normally, with intention. Just look at a
> normal  cos/sin oscillator core, it is nothing but a normal state-variable
>filter in  a  particular setup.

Exactly, and what do we have there in the feedback path, diodes!

Wich reminds us/me that a VCO is a filter and a filter is a VCO,
wich got me reminding, why is'nt anyone using a ADSR as VCO?

Current/voltage controlled ADSR parameters to the clocked freq gives a
VCO with very easy controll of seamless fading from any start shape
to any end shape oif the shapes given by the ADSR function.

KD