State Variable designs since all three filters provide low, high and
bandpass outputs. More than likely they use OTAs for the voltage control
circuitry.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
bandpass outputs. More than likely they use OTAs for the voltage control
circuitry.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
> -----Original Message-----
> From: kirkdegiorgio [mailto:kirk.degiorgio@...]
>
> I've been doing some newbie research into the actual circuits of
> VCF's and wondered what design the Serge filters are based around?
> I've read some brain-boggling facts about diode ladders, transistor
> ladders, sallen-key, OTA based designs, etc but am not much the wiser
> lol... but out of curiosity what category would the Serge filter
> designs come under?
>