Fade audio files
You can destructively fade in or out on an entire audio file, or a selected area in the Audio File Editor. Your changes are written to the file.
Fade In: Volume is set to 0 at the start point of the selected area, and the fade in occurs over the length of the selection.
Fade Out: Volume is set to 0 at the end point of the selected area, and the fade out occurs over the length of the selection.
The fade in or fade out time is determined by the selected area within the audio file.
Create a fade in or fade out
Select a section of the audio file to determine the length of the fade in or fade out area.
Do one of the following:
To create a fade in: Choose Functions > Fade In from the Audio File Editor menu bar (default key command: Control-I).
To fade passages out automatically: Choose Functions > Fade Out from the Audio File Editor menu bar (default key command: Control-O).
Tip: If you use the Silence function (see Trim or silence audio files) to remove unwanted background noise from silent passages, small jumps in volume can sometimes occur at the silence start and end points. If this happens, zoom in and select a small area surrounding—just before and after—the start point of the signal, then use the Fade In function.
Adjust the fade curves
Choose Functions > Settings from the Audio File Editor menu bar to open the Function Settings window.
Edit the Curve value to change the shape of the fade in or fade out curve.
Select the S Curve checkboxes if you want to create S-shaped curves.
These settings are automatically stored in Logic Pro X preferences when the application is closed, and they apply to all projects.
Tip: The Fade tool in the main window offers a flexible, nondestructive fade option. For more information, see Create fades.