Spectral Gate controls in Final Cut Pro for Mac
Spectral Gate includes the following controls.
To add the Spectral Gate effect to a clip and show the effect’s controls, see Add Logic effects to clips in Final Cut Pro for Mac.

- Threshold slider and field: Set a threshold level for dividing frequency ranges. When the threshold is exceeded, the frequency band defined by the Center Freq. and Bandwidth parameters is divided into upper and lower frequency ranges. 
- Speed slider and field: Set the modulation frequency for the defined frequency band. 
- CF (Center Frequency) Modulation slider and field: Set the intensity of center frequency modulation. 
- BW (Bandwidth) Modulation slider and field: Set the amount of bandwidth modulation. 
- Graphic display: Shows the frequency band defined by the Center Freq. and Bandwidth parameters. 
- Center Freq. (Frequency) knob and field: Set the center frequency of the band that you want to process. 
- Bandwidth knob and field: Set the width of the frequency band that you want to process. 
- Super Energy knob and field: Control the level of the frequency range above the threshold. 
- High Level slider and field: Mix the frequencies of the original signal—above the selected frequency band—with the processed signal. 
- Sub Energy knob and field: Control the level of the frequency range below the threshold. 
- Low Level slider and field: Mix the frequencies of the original signal—below the selected frequency band—with the processed signal. 
- Gain slider and field: Set the output level of Spectral Gate. 
Download this guide: PDF