Apple Logic Express 8 - Manual (Page 517)

Chapter 21 Editing Audio in the Sample Editor 517
You can change the start and end points of the selected area while looped playback is
happening. This makes it easy to edit the start and end points of a drum loop, for
example, until it loops perfectly. When you’re satisfied with the loop, you can make the
selected area a new region with the Edit > Selection → Region function.
To control playback with the overview:
m Simply click-hold at the point you want playback to begin. Release the mouse button
to stop playback.
You can also start monitoring from any position by double-clicking on the overview.
To scrub audio:
m Click-hold on the ruler and move the mouse.
The audio playback will follow the speed and direction of your mouse movements.
Advanced Playback Commands
You can use the following key commands for a number of advanced playback options:
 Play/Stop All (default: Shift-Control-Option-Space bar): Plays back the whole audio
file, regardless of the current selection area.
 Start/Stop Region: Toggles between playback of the audio file’s region start and end
points—regardless of the selection area.
 Play/Stop Region to Anchor (default: Shift-Control-Space bar) and Play/Stop Region
from Anchor (default: Control-Option-Space bar): These key commands allow you to
check the region anchor position, by listening to the parts just before and after the
anchor.