User guide

286 Chapter 11 Adding Pre-Recorded Media
A Note on Importing Compressed Audio Files
Logic Express allows you to directly play back the following compressed audio file
formats:
 AAC
 Compression format: MPEG4 AAC
 Sample rates: 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz,
48 kHz, 64 kHz, 88.2 kHz, or 96 kHz
 MP3
 44.1 kHz files
 Stereo files encoded at 48 or higher kbps, mono files encoded at 32 or more kbps
 iTunes/Logic encoded files
 Apple Lossless files
These files are not automatically converted when imported into Logic Express. The
compressed audio file is added to the Arrange area, and a region that encompasses the
complete audio file is created. You can edit this region in the same fashion as a normal
audio region in the Arrange area: You can cut it, loop it, rename it, and so on.
Note: It is not possible to assign fades to compressed audio files, nor can you
destructively edit them.
Audio regions that point to compressed audio files are denoted by the following symbol:
You can convert compressed AAC, MP3, and Apple Lossless audio files by doing one
of the following:
m Select the audio regions pointing to the desired audio file in the Arrange area, then
choose Audio > Convert Regions to New Audio Files in the local Arrange area menu
(or use the Convert Regions to New Audio Files key command;
default: Option-Command-F).
The part of the audio file spanned by the audio region is converted to a new audio file.
m Select the audio files in the Audio Bin, then choose Audio File > Copy/Convert File(s) in
the local Audio Bin menu (or use the Copy/Convert File(s) key command).
Important: Compressed audio files protected by the DRM (Digital Rights Management)
scheme can not be opened in Logic Express. Music bought in the iTunes Store is
usually protected by DRM.
Compressed audio file
symbol