Apple Logic Express 9 - Manual (Page 1234)

• Sample Accurate Automation pop-up menu: As the name implies, sample-accurate
automation is the most precise type of automation. It places higher overheads on
system resources, which may affect 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 effects are in use. Logic Express
offers three settings:
• Off: Minimal overhead on system performance for automation playback. Automation
is less precise when this setting is active.
• Volume, Pan, Sends: Only these parameters are automated with sample accuracy.
• 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.
• Recording File Type pop-up menu: Lets you determine the file type for recorded audio.
The settings are:
• AIFF: The AIFF file format cannot handle audio file recordings larger than 2 GB.
• WAVE (BWF): The most common audio format on Windows PC computers. Files are
stored as Broadcast Wave files, which contain timestamp information in the file
header. The WAV file format cannot handle audio file recordings larger than 4 GB.
• CAF: Choose this setting if you are going to record files larger than 4 GB in size. For
more information, see Choosing the Recording File Type .
• DIM Level slider: This slider lets you set a discrete level for the Dim function. You can
set a dim level from 0 dB to –30 dB. The level chosen here is used when the Dim button
is activated, either from the Master Volume slider on the Transport bar or from the
Master channel strip.
• Plug-in Latency Compensation pop-up menu: Plug-in latency compensation (also called
plug-in delay compensation) is useful for software effect plug-ins, and is particularly
important for DSP (digital signal processing) accelerator hardware (for example,
TC PowerCore and Universal Audio UAD1). It compensates for audio delays that can
be introduced when using plug-ins.
The pop-up menu allows you to activate plug-in latency compensation for either:
• Audio and software instrument tracks
• All (Audio, instrument, auxiliary, and output channels)
You can also turn off compensation entirely. For details, see Working with Plug-in
Latency Compensation .
1234 Chapter 43 Preferences in Logic Express