Fruity
Fast LP is a lowpass filter with very low processor usage, optimized
for automation. This filter applies the algorithm used when you select
'Fast LP' filter the Instrument
Channel Settings.
Parameters
Cutoff - Sets the "cutoff" frequency used in the filter (the higher the
value, the wider the band passed through the filter).
Resonance - Sets the filter's resonance: this is an amplified frequency
band near the cutoff level used to create special effects.