Reaktor effect
AMOTA is a filter/distortion/mangler effect based mostly on amplitude modulation and analog-style filters. It is essentially the filter and most of the modulation sections from Noisebot RKV (https://www.native-instruments.com/en/reaktor-community/reaktor-user-library/entry/show/14133/) as an effect processor with a couple extra toys.
The input is sent first through an amplitude modulator (AmpMod) with built-in carrier oscillator, then through the „Scatter“ effect (a granular-style pitch shifter/delay), then through a saturator (distortion), then the filters, then finally another saturator before going on to the output (with positive and negative feedback). The feedback re-enters the signal path before the Scatter effect.
Signal flow:
————
Input –> AM –> Feedback mix (from output) –> Scatter –> Saturator 1 –> Filters –> Saturator 2 –> Output
Each of the two filters includes a custom analog-style filter (4-pole) which can be set to lowpass, highpass, or bandpass modes. There is also a „Pro 52“ style lowpass filter included, because why not? Rather than a standard serial/parallel routing choice, the input section includes level knobs (ToFlt1 and ToFlt2) to send the signal to either or both filters. Both filters then have an output level knob, and Filter 1 includes a „ToFlt2“ knob to send its output to Filter 2 as well. For the equivalent of a serial routing, set the Input’s „ToFlt2“ knob to 0, and the „ToFlt1“ knob to some level above 0. Then, set Filter 1’s Output knob to 0, and the „ToFlt2“ knob to some level above 0. Filter 2’s Output knob is now the output level of the filter section.
Note that Filter 1’s „ToFlt2“ knob can be set to negative values, which can be used with the BPF mode to create notch effects, among other things.
CAUTION: turning up the feedback (via the !Feed! knob) can cause things to get out of control. There is an additional saturator in the signal path to help keep things from getting too loud, but it is still possible to create sounds which can damage your ears or equipment. It is recommended that you take extra precautions, such as low volume levels and perhaps limiters in the signal path after AMOTA, when making use of this feature.
by Kevin B.
