Apple Logic Express 7 - Manual (Page 287)

Chapter 11 Sample Editor 287
Audio File > Revert to Backup
This function completely replaces the current audio file with the backup (provided one
exists, of course). A warning message informs you of the creation date of the backup
file, before the current file is replaced.
You cannot reverse this function with Undo.
Audio File > Save A Copy As
Copies the current audio file to the location of your choice.
Audio File > Save Selection As
Saves the current selection as an independent audio file. You can choose whether you
wish to bring the file into the Audio window, following the save.
An interleaved stereo file is created when the source file is an interleaved stereo file.
Update Arrange Position
Edit > Update Arrange Position, when engaged, means that altering the Region start
point (or, more specifically, the Anchor position) in the Sample Editor also affects the
position of the Region in the Arrange window. This ensures that the position of a given
audio Region stays at the same place in the arrangement. When moving the Region
start point back, the remaining portion of the Region will start playback at a later
position.
Such edits have always been possible with Logic—but you needed to alter the start
point of the Region in the Arrange window. The Update Arrange Position option allows
you to make these edits more precisely in the Sample Editor, without changing the
position of audio in the Arrange. This is dependent on the Region start and Anchor
points being set to the beginning of the audio file (so that dragging the Region
startpoint also drags the Anchor).
This is the most common scenario: Anchor and Region start are always at the
beginning of the audio file, whenever you record audio or add an audio file. Moving
the Region start also moves the Anchor, as the Anchor can not precede the Region’s
start position.
• If Update Arrange Position is engaged, moving the Anchor won’t change the audible
result. The movement of the Anchor in the Sample Editor and the new position in the
Arrange are automatically compensated for. Moving the Region start in the Sample
Editor will lead to the same result as dragging the Region startpoint in the Arrange
window. This is the default setting.
• If Update Arrange Position is disabled, moving the Anchor changes the position of
audio Regions in the Arrange window.