User Manual-MADI

HD OMNI Guide24
Clock Source Selects the appropriate clock
source for the system. In most cases, you can
simply use Internal. The other options are for re-
solving Pro Tools to external clock sources.
Depending on the selected Digital 1–2 Input
Format, Clock Source options include: Internal,
AES/EBU, S/PDIF, Optical (S/PDIF), ADAT 1–8 (at
44.1 kHz and 48 kHz), ADAT S/MUX 1–8 (at
88.2 kHz and 96 kHz), ADAT S/MUX 1–4 (at
176.4 kHz and 192 kHz), and Word Clock (multi-
ple Word Clock rates are available when operat-
ing at higher sample rates).
Sample Rate Determines the default sample rate
when you create a new session. This setting is
available only when there is no session open.
Otherwise, the current session sample rate is dis-
played, but cannot be changed.
Input Selects the physical inputs (such as Analog
1–2 or ADAT 1–2), that will be routed to the cor-
responding Pro Tools input channels (such as
Ch 1–2 or Ch 3–4), listed on the left side of the
Main page.
Output Selects the physical outputs (such as An-
alog 1–2, Analog 3–4, AES/EBU 1–2, and so on),
used for the corresponding Pro Tools output
channels (listed on the left side of the Main
page).
The available Output options update to reflect
the configuration of the Monitor page of the
Hardware Setup (see “Monitor” on page 26).
Mono and stereo Monitor paths are always auto-
matically assigned to the first Output selector
(Pro Tools channel outputs 1–2) and cannot be
changed. Larger Monitor path formats similarly
use subsequent Outputs as needed (depending
on the channel width of the Monitor path).
Physical outputs (such as “Analog 1–2”) are un-
available when they are assigned to Monitor
(but Pro Tools output channels assigned to
“Monitor” sound through the corresponding
physical outputs).
Digital 1–2 Input Format Selects the digital input
format for channels 1 and 2:
•AES/EBU
•S/PDIF
• 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
Optical Output Format Selects the digital output
format for the Optical output:
• ADAT—Provides eight channels of ADAT
optical output at 44.1 and 48 kHz.
• ADAT S/MUX—Provides eight channels of
ADAT S/MUX optical output at 88.2 and
96 kHz, and four channels of ADAT S/MUX
optical output at 176.4 and 192 kHz.
• Optical (S/PDIF)—Provides two channels of
S/PDIF optical output at sample rates up to
96 kHz.
Physical outputs not assigned to Monitor
output paths in Main tab of the Hardware
Setup can cause speaker damage if you are
not careful. Note that the front panel Mute
button and the Monitor encoder (used for
adjusting the Control Room monitoring
path levels) only apply to assigned monitor
paths, they do not have any effect on other
outputs.