Use Spectral Gate in Final Cut Pro for Mac
One way to familiarize yourself with the operation of Spectral Gate would be to start with a drum loop. Set Center Freq. to its minimum value (20 Hz) and Bandwidth to its maximum value (20,000 Hz) so that the entire frequency range is processed. Turn up Super Energy and Sub Energy, one at a time, then try different Threshold settings. This should give you a good sense of how different Threshold levels affect the sound of Super Energy and Sub Energy. When you come across a sound that you like or consider useful, narrow Bandwidth drastically, gradually increase Center Freq., and then use the Low Level and High Level sliders to mix in some treble and bass from the original signal. At lower Speed settings, turn up CF Modulation or BW Modulation.
In the Final Cut Pro timeline, select a clip with the Spectral Gate effect applied, then open the effect’s settings in the Audio inspector.
To add the effect and show its controls, see Add Logic effects to clips in Final Cut Pro for Mac.
Set the frequency band you want to process by using the Center Freq. and Bandwidth controls.
The graphic display shows the band defined by these two parameters.
Drag the Threshold slider to set the appropriate level.
All incoming signals above and below the threshold level are divided into upper and lower frequency ranges.
Rotate the Super Energy knob to control the level of the frequencies above the threshold, and rotate the Sub Energy knob to control the level of the frequencies below the threshold.
To mix the frequencies that fall outside the defined frequency band with the processed signal, do any of the following:
Drag the Low Level slider to blend the frequencies below the defined frequency band with the processed signal.
Drag the High Level slider to blend frequencies above the defined frequency band with the processed signal.
To modulate the defined frequency band, use the Speed, CF Modulation, and BW Modulation sliders.
Drag the Speed slider to determine the modulation frequency.
Drag the CF Modulation slider to define the intensity of the center frequency modulation.
Drag the BW Modulation slider to control the amount of bandwidth modulation.
Drag the Gain slider to adjust the final output level of the processed signal.
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