I/O Setup Primer8
Signal Path Routing for Audio Output
Figure 2 below 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 Audio is played back from disk and routed
from the Track Output to Output Bus “B 1–2.”
2 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 On the Output page of the I/O Setup, the
cross-point matrix routes the output path (to
which the bus output is mapped) to physical
outputs on your audio interfaces.
4 The physical outputs on your audio interface
that are available to Pro Tools outputs are set on
the Main page of the Hardware Setup (this selec-
tor is mirrored in the Output page of the I/O
Setup as shown here).
Figure 2. Output signal path from an audio track to a physical output as mapped in I/O Setup
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