Filters
A low-pass filter emulating a 4-pole transistor ladder.
It attenuate around 24dB/octave.
It tries to recreate the classic warm sound of the original analog transistor-ladder filter.
CUTOFF
With the cutoff attenuator turned fully clockwise the cutoff CV input will modulate with 1V/octave.
DRIVE
The drive control the input gain. Lower gain will make the filter give a more linear response, it can also increase the ratio of resonant peak versus passband gain. At higher gains the non-linear response of the filter can start to distort the passband also, which can lead to some compelling sounds.
RESONANCE
When input is unplugged, go silent or drive is turned fully counter-clockwise at very high resonance setting it can self-oscillate, if resonance is dialed too low again, it will stop and the procedure have to be repeated to get it going again.
The self resonance is a sine wave, not programmed that way, but just appears as a consequence of how the way the filter replicates the analog circuit.
The Dirt module has been removed from the plugin.