Avid Technology Pro Tools HD MADI, Manual

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Pro Tools | HD MADI Guide
20
Clock Source
The Pro Tools Hardware Setup dialog lets you se-
lect the Clock Source for the system.
Internal If you are recording an analog signal
directly into Pro Tools, you will usually use the
Pro Tools
Internal clock source.
External If you are transferring material into
Pro Tools from an external digital device, or if you
utilize a common house clock signal, you will syn-
chronize Pro Tools to that digital device or com-
mon signal. The external options for HD MADI
are dependent on the sample rate and include:
To select the Clock Source:
1
Choose Setup > Hardware.
2
From the Clock Source pop-up menu, select the
clock source.
3
Click OK .
Identify
If you have multiple audio interfaces of the same
type connected to your system, you should confirm
the identity of each interface. This ensures that you
select the appropriate interface in the Peripherals
list when defining its inputs and outputs, and other
settings, in the Hardware Setup dialog.
To identify audio interfaces in your system:
1
Choose Setup > Hardware.
2
From the Peripherals list, select an audio
interface connected to your system.
3
Select the Identify option, located in the lower
left corner of the Hardware Setup dialog. This
illuminates all the LEDs on the front panel of
the selected audio interface.
4
Make a note of which interface in your studio
setup corresponds to the identified interface.
5
Repeat the above steps for each additional audio
interface in your setup.
Configuring
Pro Tools | HD MADI
To configure controls for HD MADI:
1
Choose
Setup > Hardware
.
2
From the Peripherals list, select either
HD MADI DigiLink 1 or HD MADI DigiLink
2 and configure the options as desired.
Available Clock Sources for HD MADI
44.1/48 kHz 88.2/96 kHz 176.4/192 kHz
SYNC/SYNC
HD (if present) SYNC/SYNC
HD (if present) SYNC/SYNC
HD (if present)
Internal Internal Internal
MADI IN MADI IN MADI IN
Word Clock
(44.1/48 kHz)
Word Clock
(44.1/48 kHz)
Word Clock
(44.1/48 kHz)
Word Clock
(96 kHz)
Word Clock
(176.4/192 kHz)
Your digital input device must be connected
and powered on for Pro Tools to synchronize
to it. If your input device is not powered on,
leave the Clock Source set to Internal.
Use the Up and Down Arrow keys to scroll
though the Peripherals list in the Hardware
Setup dialog.