AutoFilter LFO controls in Final Cut Pro
The AutoFilter effect’s low-frequency oscillator (LFO) is used as a modulation source for filter cutoff.
On/Off button: Turn the LFO section on or off.
Sync button: Synchronize the LFO with the clip tempo. You can set bar values, triplet values, and more with the Rate knob and field.
Rate knob and field: Set the speed of LFO modulation. See AutoFilter extended controls in Final Cut Pro.
Sync Phase knob and field: When Sync is active, rotate to set the phase relationship between the LFO rate and the project tempo. This control is dimmed when Beat Sync is turned off.
Stereo Phase knob and field: Set the phase relationship of the LFO modulations between the two channels (stereo only).
Retrigger button: Turn on to retrigger the LFO waveform from the start of the cycle each time.
Waveform buttons: Select the shape of the LFO waveform. Choose descending sawtooth, ascending sawtooth, triangle, pulse wave, or random.
Pulse Width knob and field: Alter the curve shape of the selected waveform.