Elektron Octatrack - Manual (Page 174)

Appendix B: EFFECTS REFERENCE B-9
COMB FILTER
The comb filter introduces metallic sounding, pitch tuned, resonant overtones to sounds and samples.
COMB FILTER MAIN
PTCH controls the resonant frequencies of the
comb filter.
TUNE changes the pitch by up to 2 semitones
up or down.
LP controls the cutoff frequency of the low
pass filter that is implemented in the feedback
signal.
FB controls the gain of the feedback signal.
MIX controls the dry/wet signal.
COMB FILTER SETUP
No setup parameters are available.