User guide

526 Chapter 21 Editing Audio in the Sample Editor
Important: You should never make a gain change that results in a value over 100%, as
this will result in digital clipping.
Fading Audio Files
You can destructively fade in or out on entire, or selected areas of, audio files. The fade-
in or out time is determined by the current selection area within the audio file.
To create a fade in or fade out:
1 Use any of the selection techniques outlined earlier in the chapter to determine the
length of the fade-in or fade-out area.
 Fade-in: Volume is set to zero at the start point of the selection area, and the fade-in
occurs over the length of the selection.
 Fade-out: Volume is set to zero at the end point of the selection area, and the fade-
out occurs over the length of the selection.
2 Do one of the following:
 Choose Functions > Fade In (default key command: Control-I) to create a fade in.
 Choose Functions > Fade Out (default key command: Control-O) to fade passages
out automatically.
∏ Tip: If you use the Silence function (see “Silencing an Audio File Section” on page 527)
to remove unwanted background noise from silent passages, small jumps in volume
can sometimes appear at the silence start and end points. In this situation, zoom in,
and select a small area surrounding (just before and after) the start point of the signal,
then use the fade-in function.
To adjust the fade curves:
1 Open the Functions Settings window by choosing Function > Settings.
2 Edit the Curve value to change the shape of the fade-in or fade-out curve.
3 Turn on the S Curve checkbox if you want to create s-shaped curves.
These settings are automatically stored in the Preferences when Logic Express is closed,
and apply to all projects.