Apple Logic Pro 9 - Manual (Page 49)

What Can’t Be Processed on a Node
The Node buttons are available for all audio and software instrument tracks. There are,
however, some exceptions:
• EXS instruments: These are always calculated on the host. The reason for this is the
potentially demanding transfer of samples via the network, resulting in a slowdown of
audio processing over the network. The sample library needs to be present on the host
computer itself.
• Multi-output instruments such as Ultrabeat: Further to this, Ultrabeat also has a similar
problem to the EXS24 with sample-based kits.
• Audio Units software instruments: When an Audio Units software instrument track is
selected, the Node button is automatically turned off.
The Logic Pro Node application can process Audio Units effects.
It is possible, however, that some Audio Units effects may not support the Node
functionality of Logic Pro. You can disable the Node processing for incompatible
Audio Units effects in the Audio Units Manager.
It is not possible to calculate input, output, bus, or aux channels on a Node.
49 Chapter 2 Setting Up Your System