[sdiy] [OT] Analog synths with 2 pole filters
tom at electricdruid.net
Fri Feb 22 20:07:38 CET 2013
On 22 Feb 2013, at 17:35, cheater cheater <cheater00 at gmail.com> wrote:
> Hi Tom,
> regarding the SSM2164 VCF, why not compensate the feedback as the
> cutoff CV changes?
> On the topic of cutoff-dependent resonance, the WWAYM NWSynth VST
> plugin had something like this (you could set the resonance make-up
> via several sliders, like a graphical EQ, and then you had an overall
> resonance knob). That made its tired old DSP code actually sound
It's a possible solution, but it's compensating for the problem, rather than actually solving the problem. In that respect, it's not such a good solution.
Still, if the filter was being driven by a microprocessor which had control over the "resonance" (damping) that's probably exactly the approach I'd take - stick a compensation table in the code. Dirty, but simple and effective.
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