GateKeeper Docs
OSC NOISE MODE
These are self oscillating feedback circuits that are interconnected between the 4072 and the MULTA filters. Although the Filters, Distortions and VCA can act as independent modules, the feedback circuits cross invisible lines sending one point of the circuit to another along the Intended signal path.
So if your you are using the two filters independently and engage A, B, C, or D even I’m not sure what’s going to happen. Your signals may cross pollinate.
Again, please remember to use your LIMIT toggle when first experimenting with this. Switch LIMIT off at times to compare what the full dynamic signal sounds like.
MODE A will be least intensive and works mainly with the RESONANCE of the MULTA FILTER. You may not notice a difference in the signal until you increase the RESONANCE of the MULTA FILTER and turn the MULTA filter frequency down.
MODE B will push the oscillations into full low pulsating clicks/thuds. With a little experimentation it’s possible to get to more transparent and useful setting.
MODE C is a constant self oscillation. It can be very aggressive erasing the tones of your source audio. Very easy to create a variety of tom drum sounds.
MODE D will increase the low end response of the INTENDED SINGAL PATH. Try this when running a fast sequence. I hope you have a sub speaker for full effect. You have a sub speak right?
You will notice all these modes will vary greatly depending on the positions of the resonance and frequency knobs. The responses may be fluid when twisting knobs. There are occasional thresholds that kick in or off. At times even needing a “kick start” knob twist to start the oscillation. This is normal.
ADSR and CV knobs will affect the tones of the OSC MODEs. This is key to getting the most out of The GateKeeper. As the frequencies of the filters change so does the pitch of the oscillations. ***Try the OSC MODEs while running sequences. Adjust the 4072 CV and MULTA CV potentiometers along with GATE triggering the ADSR envelope. The pitch of the oscillations will follow the ADSR envelope.
Pro-Tip: There is a whole world of potential for artist making sound banks. It may be difficult to tune some of these oscillations to traditional notes “live”. However It may be fun to record these waves and make some sampled instruments out of them.
Mixing and matching the different modes simultaneously will produce unexpected results. …And that is ok.