Octatrack: Comb Filter Tips

Source: https://www.elektronauts.com/t/ot-comb-filter-how-and-where-to-use/257

From darenager, offering some insight into how he created the sounds in Distant Drums:

It can be nice to use it for harmonies, set the feedback toward either near fully positive or negative, works nice on vocals giving an almost robot/vocoder feel, but also fun on hihats, pads, bass, erm everything. Oh and use an LFO on the pitch or tune to introduce a small amount of vibrato sounds nice too.

I don’t remember how many tracks on the tune in the video I used the comb filter but it was at least 3 IIRC, the sounds on each track were all made from that same scream sample by using very short looped sections, heavy use of filter for things like BD and bass line, hi hats, comb filter to provide body for the melodic sounds and also the kind of tubey/phasey bit via LFO.

(in reference to his album:  https://darenager.bandcamp.com/album/selected-labs-ep)

Edit - ha, just remembered I used to have track 6 of this album as my ringtone. (From about 17 seconds in) 

Edit 2 - Track 3 - Play 4 Ca$h also uses the comb filter quite extensively.

From Jon9:

A technique I use with the Comb Filter is to add harmonic content to beating oscillators and/or tonal shading stops when creating drones using the Octatrack as an effects processor. To add further movement to the Comb Filter harmonic tone send the Feedback as a LFO Destination to oscillate between hard negative or hard positive values. The LFO Depth determines how much Feedback oscillation and the LFO Speed determines how fast the Feedback oscillates. Tonal shading is multiple oscillators set at different intervals. Generally 8va or 8vb octave stops (32' 16' 8' 4' 2' 1').
I've had good results putting the comb filter on sounds that need more low end. Roll the freq way down low and you can get some nice beefing up type of FX. 

 Octatrack Tip Video on the Comb Filter https://www.youtube.com/watch?v=C0bC8eCFa8o