Apple Logic Express 8 - Manual (Page 555)

Chapter 23 Adjusting the Tempo of Audio Regions 555
3 Choose Options > Tempo > Adjust Tempo using Region Length and Locators (or use
the corresponding key command, default: Command-T).
A dialog will ask if you want to change the tempo of the entire project, or create a
tempo change for the section of the project occupied by the selected region.
4 Do one of the following:
 Click Globally to adjust the tempo of the complete project to the audio region.
 Click Create to create a tempo change that spans the length of the audio region.
The project tempo is recalculated to conform with the audio length (and locators).
Time Stretching Regions
Logic Express allows you to change the length of audio regions (without changing their
pitch) directly in the Arrange area—using menu or key commands.
When applying these functions to a region in the Arrange area, a new file—consisting
of the resulting material—will be created, leaving the original intact. Both new and old
files are accessible in the Audio Bin.
Logic Express offers different time stretching and compression algorithms in the
Arrange area’s Audio > Time Machine Algorithm menu. The different algorithms are
best suited for particular types of musical material. For more information, see “
Using
the Time and Pitch Machine ” on page 534.
Note: You can also time stretch selected audio regions directly in the Sample Editor,
using the Time and Pitch Machine.