Apple Logic Pro 8 - Manual (Page 960)

960 Chapter 40 Project Settings and Preferences
Low Latency Mode Checkbox and Limit Slider
You need to turn on the Low Latency Mode checkbox, in order to activate Low Latency
mode, and to use the Limit slider. The Limit slider determines a maximum amount of
allowable delay that can be caused by plug-ins when Low Latency mode is enabled (by
clicking the Low Latency Mode button on the Transport). In Low Latency mode, plug-
ins are bypassed, to ensure that all delays (across the entire signal flow of the current
track) remain under the Limit slider value. This is useful when you want to play a
software instrument with several latency-inducing plug-ins inserted in the channel. For
more information, see “
Working With the Low Latency Mode ” on page 848.
Crossfade Time
Determines a default time value for all crossfade operations in the Arrange area.
Crossfade Curve
Determines a global curve type for all crossfade operations in the Arrange area.
Sample Editor Preferences
 Warning before processing function by key command: Switch this on if you want to be
warned before carrying out a destructive edit in the Sample Editor—using a key
command. This gives you the opportunity to cancel the edit operation, before
altering the data.
 Clear Undo History when quitting: Switch this on to automatically delete the Undo
History for all edited audio files, when you close Logic Pro.
 Record selection changes in Undo History: Switch this on if you wish to undo and redo
changes to selected areas in the Sample Editor.
 Record Normalize operations in Undo History: Disable this setting if you don’t want to
create undo files once the Normalize function is invoked.