User Manual

Pro Tools Reference Guide50
Opening the I/O Setup
The I/O Setup can be opened from the application
window (with a session closed), or from within a
session (when a session is open).
To open the I/O Setup:
1 Make sure your audio interfaces are enabled
and configured properly in the Hardware Setup.
See “Configuring Hardware Settings in
Pro Tools” on page 95.
2 Choose Setup > I/O.
Closing the I/O Setup
To close the I/O Setup and save changes:
 Click OK.
Pro Tools checks several settings for routing valid-
ity (to prevent feedback loops). If there are any
overlapping or invalid settings, you will be re-
quired to correct them (see “Valid Paths and Re-
quirements” on page 75).
To close the I/O Setup without saving changes:
 Click Cancel.
Navigating in the I/O Setup
To scroll left or right in the I/O Setup:
 Press Option+Page Up/Down (Mac) or
Alt+Page Up/Down (Windows).
Pro Tools Software Signal
Paths
A signal path is a logical grouping of multiple in-
puts, outputs, or busses that has a single name and
(channel) format. The I/O Setup lets you create,
define and name paths according to the configura-
tion of your studio and the needs of each project.
24 busses are created by default, but you can create
as many as you need.
Main Paths and Sub-Paths
Paths in Pro Tools tracks and I/O Setup include
main paths and sub-paths.
Main Paths
Main paths are logical groupings of inputs, inserts,
busses, or outputs. For example, a master stereo
output path will include both its left and right chan-
nels.
Sub-Paths
A sub-path represents a signal path within a main
path. For example, a default stereo output bus path
consists of two mono sub-paths, left and right.
Mono tracks and sends can be routed to either
mono sub-path of the stereo output bus path.
Main and sub-paths in I/O Setup (Input page)