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Chapter 25 Preferences, project settings, and key commands 854
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Low Latency Mode checkbox and Limit slider: You need to select the Low Latency Mode
checkbox in order to turn on Low Latency mode and use the Limit slider. The Limit slider lets
you determine a maximum amount of allowable delay that can be caused by plug-ins when
Low Latency mode is turned on (by clicking the Low Latency Mode button in the control bar).
In Low Latency mode, plug-ins are bypassed to ensure that all delays (across the entire signal
ow 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.
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Crossfade Time slider: Determines a default time value for all crossfade operations in the
Tracks area.
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Crossfade Curve slider: Determines a global curve type for all crossfade operations in the
Tracks area.
When Advanced Editing is selected in Advanced preferences, the following is available:
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Sample Accurate Automation pop-up menu: As the name implies, sample-accurate automation
is the most precise type of automation, but it’s very processor intensive. It places higher
overheads on system resources, which may aect performance (depending on the nature of
your projects, and available computing power). This is most likely to happen during heavy
project sections where a lot of software instruments and eects are in use. Logic Pro oers
three settings:
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O: Minimal overhead on computer performance for automation playback. Automation is
less precise when this setting is active.
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Volume, Pan, Sends: Only these parameters are automated with sample accuracy.
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Volume, Pan, Sends, Plug-in Parameters: All of these parameters are automated with sample
accuracy. Not all Audio Units plug-ins can be automated in this way.