Specifications

Pro Tools Reference Guide42
Additional pages are available to configure other
controls for each audio interface (such as setting
operating levels). For details, refer to the Getting
Started Guide for your system, or to the guide for
your audio interface.
To configure audio interfaces on a Pro Tools|HD
system:
1 Choose Setups > Hardware Setup.
2 From the Peripherals list, select the Digidesign
audio interface connected to the first card in
your system. This will be the interface at the top
of the list.
3 Click the Main tab.
4 From the Clock Source pop-up menu, select
the appropriate clock source for the system. In
most cases, you will use Internal. The other
choices are for resolving Pro Tools to external
clock sources. Depending on your audio inter-
face, Clock Source options can include:
AES/EBU [Encl], S/PDIF, Optical [Encl], AES/EBU
1–8, TDIF, ADAT, and Word Clock (optional
Word Clock rates are available when operating
at higher sample rates).
5 From the Ext. Clock Output pop-up menu, se-
lect the appropriate clock output to send to de-
vices attached to your audio interface.
6 Select which digital I/O port on your audio in-
terface enclosure is active under Digital Format.
Choices include: AES/EBU, S/PDIF, and Optical
(S/PDIF). Selecting Optical (S/PDIF) resets the
Optical I/O port (which is, by default, eight
channels of ADAT I/O) to two channels of
S/PDIF Optical I/O.
7 For S/PDIF compatibility with Tascam DA-30
DAT recorders select the Tascam option under
S/PDIF Format.
8 For the 96 I/O, click the Meters pop-up menu
and select whether to meter the input or output
signal.
9 From the Input and Output pop-up menus, se-
lect the physical ports (such as Analog 1–2 or
Optical 1–2), that will be routed to the corre-
sponding Pro Tools input and output channels
(such as Ch 1–2 or Ch 3–4), listed on the left side
of the Main page.
Inputs and outputs of similar format are differ-
entiated in the input and output channel pop-
up menus. For example, the AES/EBU inputs
and outputs in the 192 I/O enclosure are listed
as AES/EBU [Encl], while the AES/EBU inputs
and outputs on the factory-installed Digital I/O
card are listed (in pairs) as AES/EBU 1–2,
AES/EBU 3–4, AES/EBU 5–6, and AES/EBU 7–8.
For 192 I/Os equipped with the optional
Digital I/O Card, the additional AES/EBU I/O
ports on the optional card are listed as AES/EBU
9–10, AES/EBU 11–12, AES/EBU 13–14, and
AES/EBU 15–16.
10 Click other tabs (such as Analog In and Ana-
log Out) for additional configuration options
specific to the audio interface. These include:
Hardware Setup dialog for 192 I/O (Analog In page)
You can identify audio interface connec-
tions at any time by selecting the interface
name in the Peripherals list, then clicking
Identify. All the LEDs on the interface front
panel will illuminate.