10.6

Table Of Contents
511Logic Pro User Guide
Create Loops in the Audio File Editor in Logic Pro
The Audio File Editor Loop commands, available from the Edit menu, are ideal for use with
Sampler.
You can also use these functions to generate audio files that contain the loop settings in
the file header. This allows you to make full use of these files in any app that can read the
loop information in the file header.
Use the Audio File Editor Loop commands
1. In Logic Pro, choose either of the following commands from the Edit menu:
Sample Loop → Selection: The loop area (defined by the loop start and end points) is
used to select a portion of the overall audio file.
Selection → Sample Loop: The selected area is used to set the loop start and end
points.
2. Choose Edit > Write Sample Loop to Audio File.
The new loop values are written to the file header.
Undo Audio File Editor edits in Logic Pro
Most Audio File Editor functions in Logic Pro, are destructive, changing the files stored on
your hard disk. However, you can use the Undo feature if things do not go your way.
Compare (or undo) your edits with the original audio file
Choose Edit > Undo (or press Command-Z).
Cancel a destructive edit that is in progress
Press Command-Period (.).
The audio file is retained in its original state, even if it appears that a portion of the editing
function has occurred.
You can configure the Audio File Editors Undo function in the Preferences > Audio > Audio
File Editor pane. See Audio File Editor preferences in Logic Pro.
Backup audio files in the Audio File Editor in Logic Pro
Although the Undo History and standard Undo functions are available in Logic Pro, try to
get in the habit of creating backups before processing or editing. This provides a safety
copy of your audio recordings in case something unexpected happens, due to a processing
error or other unforeseen event.
You can make manual backups of the file you’re editing, or replace it with a backup version
at any time, using a variety of functions.
Duplicate the audio file you’re working on
In Logic Pro, choose Audio File > Create Backup from the Audio File Editor menu bar (or
pressControl-B).
A copy of the audio file (with the extension .dup) is created in the same folder as the
source file.