Specifications

DigiRack Plug-Ins Guide8
The System Usage window (Windows > Show
System Usage) shows how much DSP is available
on your system, and gives an approximation of
how it is currently being used.
DSP Sharing Between TDM Plug-Ins
With Digidesign’s MultiShell II technology, dif-
ferent types of TDM plug-ins can share the same
DSP chip at the same time. This lets you simul-
taneously use a greater variety of plug-ins by ef-
ficiently managing the DSP available on each
chip in your system.
To take advantage of this capability, plug-ins
must be MultiShell II compatible. All
DigiRack TDM plug-ins with the exception of
Direct Connect and Pitch are MultiShell II com-
patible.
Some third-party plug-ins may not be Multi-
Shell II compatible. To check compatibility,
contact the developer.
RTAS Plug-Ins
RTAS plug-ins rely on and are limited by the pro-
cessing power of your computer’s CPU. The
more RTAS plug-ins you use concurrently in a
session, the greater the impact it will have on
other aspects of your system’s performance,
such as maximum track count, the density of
edits possible, and latency in automation and
recording.
The CPU meter in the System Usage window
(Windows > Show System Usage) shows how
much of your computer’s processing power is
currently being used by Pro Tools, and how
much is still available.
For more information on the System Usage
window, see the
Pro Tools Reference Guide.
System Usage window
See Appendix A, “DSP Requirements for
TDM Plug-Ins” for relative numbers of in-
stances of each DigiRack TDM plug-in that
can be powered by a single DSP chip. DSP
capacity differs with card type.
For more information on the System Usage
window, see the
Pro Tools Reference Guide.