Apple Logic Pro 8 - Manual (Page 102)

102 Chapter 4 Setting Up Your System
The Track Node buttons have four possible status indicators:
 Disabled: The track is calculated on the local host (in Logic Pro, as per usual).
 Enabled/Inactive: This track can potentially be calculated on the Node.
 Enabled/Active (glowing): The track is actually being calculated on the Node.
 Sync Pending: Data synchronization between the host and Node has not yet been
established (if the Node is not running, for example).
4 Click on the desired Track Node button in the track list, to offload that track’s
processing duties to a Node.
∏
Tip: You can use track button slide activation to enable distributed audio processing
on multiple tracks (see “
Using Track Button Slide Activation ” on page 206).
5 Click on an active Track Node button to disable distributed audio processing for the
track.
Important Information on Using Nodes
Logic Pro will automatically determine if enabled tracks are actually calculated on a
Node (and which Node, if multiple Node machines are available), or on the host
computer. This is dependent on system resources and network traffic.
The distribution of tasks to Nodes is based on an estimate of the processing resources a
certain stream will cost the host CPU. While the CPU load of audio effects is relatively
constant, the performance of software instruments may vary greatly, depending on the
chosen setting, and on the number of simultaneously played voices.
Compensation of latencies caused by the network and processing occurs on playback
tracks—audio or software instrument, resulting in perfect timing—but this is obviously
not possible for live performance tracks.
Disabled
Enabled/Inactive
Enabled/Active
Sync Pending