Specifications

IO Setup Improvements 27
Input and Output Signal
Routing
To better understand the routing of audio sig-
nals to and from physical I/O and the Pro Tools
mixer, consider the following two examples.
Signal Path Routing for Audio
Input
Figure 1 on page 28 shows the signal path from
the physical analog input of an HD OMNI audio
interface, and then through the Pro Tools audio
input path to the Input of an audio track in the
Pro Tools mixer:
(1) Physical Input For Pro Tools|HD interfaces
such as the HD OMNI, the physical inputs that
are available to Pro Tools are set on the Main
page of the Hardware Setup (this selector is mir-
rored in the Input page of the I/O Setup).
(2) Input Path Main input paths and sub-paths
are routed (patched) to physical inputs using
cross-point matrix mapping in the I/O Setup. In
this example, audio input is routed from HD
OMNI physical inputs Analog 1–2 to Pro Tools
Input channels A 1–2.
(3) Track Input Input paths and sub-paths are
routed to track inputs in the Pro Tools mixer by
selecting the path (or sub-path) from the Track
Input selector. In this example, input sub-path
A1 is routed to the input of track “Audio 1.”
Signal Path Routing for Audio
Output
Figure 2 on page 29 shows the signal path from
the output of an audio track, through an output
bus mapped to an output path that is routed to
a physical output on an HD I/O audio interface:
(1) Track Output Audio is played back from disk
and routed from the Track Output to Output
Bus “B 1–2.”
(2) Output Bus Path The Output Bus is defined
on the Bus page of the I/O Setup. On the Bus
page of the I/O Setup, the Output Bus “B 1–2” is
mapped to Output “B 1–2,” which is defined on
the Output page of the I/O Setup.
(3) Output Path On the Output page of the I/O
Setup, the Grid is used to route the output path
(to which the output bus is mapped) to physical
outputs.
(4) Physical Output For Pro Tools|HD interfaces
such as the HD OMNI, the physical outputs that
are available to Pro Tools are set on the Main
page of the Hardware Setup (this selector is mir-
rored in the Output page of the I/O Setup).
For Pro Tools systems such as the Mbox and
the 003, physical inputs are fixed. For third-
party and built-in hardware, click the
Launch Setup App button for available con-
figuration options.
For Pro Tools systems such as the Mbox and
the 003, physical outputs are fixed. For
third-party and built-in hardware, click the
Launch Setup App button in the Hardware
Setup for available configuration options.