Apple Logic Express 7 - Manual (Page 267)

Chapter 9 Audio Window 267
Converting Different Split Stereo Formats
Logic treats audio files with a name that ends in “.L” or “.R” as stereo files. These “name
extensions” are used by ProTools, Session, or SoundDesigner II to identify “split stereo”
files. Logic’s file management functions, such as Rename, Create, or Revert to Backup can
also identify these name extensions.
Manual Stereo Conversion
Convert to SDII Stereo
This command converts two (split-stereo) audio files into a single stereo file—in the
SDII format. This is useful if you want to edit a “split stereo” file using a different
program, such as CD mastering software.
Select the audio files and choose Audio File > Convert to SDII Stereo. Keep in mind that
this only works for split stereo files. You can’t use Convert to SDII Stereo to combine
two mono files into a stereo file.
Logic automatically stores converted SDII files in the same location as the original split
files (provided that there’s enough room on the drive).
Convert to AIFF Stereo
Split stereo files can be converted into an interleaved stereo file—in the AIFF format—
by using the File > Convert to AIFF Stereo command.
Other Functions Involving Audio Files
Reassigning Audio Files (Update File Information)
If Logic cannot find one or more audio files—when opening a song, for example—the
Regions are shown as “blank” gray areas in the Audio window.
If the files are available under a different name, or you want to assign a “replacement”
file, you can do so as follows:
• Double-click the relevant Region, or select Audio File > Update File Information.
• Select Locate in the dialog, and a file selector box opens, allowing you to load the
desired audio file.
What to Do if Logic Cannot Find an Audio File
Sometimes, Logic can’t find a file which was previously used in the song. This could be
due to one of the following:
• You have not connected the relevant hard disk, or you have renamed the volume.
• You have stored the files in a different volume, or moved them to another volume.
• You have renamed the files in the Finder, or renamed them in the Audio window of
another song.
• You have deleted the files.
In these situations, Logic launches a dialog box. You can respond in any of the
following ways: