Ableton/Live/UG/31 Instrument Reference/03 Drift/03 Filter Section
- A switchable low-pass filter with key tracking and resonance, a high-pass filter, and two modulation slots.
- Freq — low-pass cutoff. Type — Type I, 12 dB/octave DFM-1 that feeds distortion back internally, from gentle sweeps to warm drive; or Type II, 24 dB/octave Cytomic MS2, a Sallen-Key design with soft clipping that limits resonance.
- Key — 0.00 ignores note pitch; 1.00 makes cutoff follow it.
- Res — low-pass resonance. HP — high-pass cutoff.
- Clicking the section shows an X-Y view: the left dot sets HP, the right dot sets LP cutoff horizontally and resonance vertically.
- Freq Mod — two sources for LP cutoff, each -100% to 100%.
