Specifications

IO Setup Improvements 31
Pro Tools 8.1 and Higher
When exchanging sessions among systems run-
ning Pro Tools 8.1 or higher, it is generally rec-
ommended that the Sessions Overwrite Current
I/O Setup When Opened option be disabled. This
maintains any system I/O settings when open-
ing a session from another system (see “Sessions
Overwrite Current I/O Setup When Opened” on
page 22).
Pro Tools 8.0.4 and Lower
When exchanging sessions with systems run-
ning lower versions of Pro Tools, it is generally
recommended that the Sessions Overwrite Cur-
rent I/O Setup When Opened option be enabled
(see “Sessions Overwrite Current I/O Setup
When Opened” on page 22). In this case, any
custom settings saved with the session that do
not match your system may need to be reconfig-
ured manually in the I/O Setup to match your
current studio setup.
Opening Older Sessions in Pro Tools 8.1
and Higher
When opening sessions created in Pro Tools
8.0.4 and lower in Pro Tools 8.1 or higher, out-
put paths from the legacy session are re-created
as output buses. If the Sessions Overwrite Current
I/O Setup When Opened option is enabled, the
output buses are mapped to session output
paths.
Path Order and Overlapping Output
Paths
When exchanging sessions between Pro Tools
8.1 or higher and Pro Tools 8.0.4 and lower, out-
put paths and sub-paths are changed as follows,
depending on the order in which they appear in
the I/O Setups.
 If a session created in Pro Tools 8.1 or higher
contains overlapping paths with a larger path
created above smaller paths in the I/O Setup, the
smaller paths are converted to sub-paths of the
larger path when the session is opened in
Pro Tools 8.0.4 and lower.
 If a session created in Pro Tools 8.1 or higher
contains overlapping paths where a smaller
path appears above a larger path in the I/O
Setup, the larger path will be made inactive
when the session is opened in Pro Tools 8.0.4
and lower.
Show Last Saved Setup and Show
Current Setup
When a session is opened that contains path
definitions for unavailable I/O interfaces, the
I/O Setup lists those paths in italics.
Clicking the Show Last Saved Setup button dis-
plays the audio interfaces used in the original
session. This temporary display lets you check
the last saved I/O configuration for reference
while configuring the I/O settings for your sys-
tem.
Once a session has been opened with unavail-
able I/O retained, you can then reassign tracks
to available I/O paths.
If you created a backup of your I/O settings
by exporting your I/O settings, you can im-
port settings after opening the session. “Im-
porting I/O Settings” on page 25.
If your hardware configuration has
changed, you may need to manually recon-
figure output assignments the I/O Setup
Grid.