--- In
motm@yahoogroups.com, "JH." <jhaible@d...> wrote:
>
> Yes. It's a resonant HPF with variable slope. See filter plots at
> http://www.oldcrows.net/~jhaible/jh5/jh5.html (scroll down)
> Hiss is not a problem.
So, what we really want is your new design (variable slope HPF) plus a
low pass equivalent (variable slope LPF) and a filter coupler.
Maybe the coupler could be designed with a "spacing" control - a
frequency CV into the coupler with CV outputs to the LPF and HPF to
spread the filters in BP mode. (Along with the continuously variable
output from LP to BP to HP assuming this is possible.)
seth