User guide

Mbox Pro Setup Guide22
Using S/PDIF Input
If you are using Pro Tools, use the Hardware
Setup dialog in Pro Tools.
If you are using the S/PDIF input on Mbox with
a third-party CoreAudio-or ASIO-compliant ap-
plication, use the Mbox Control Panel to config-
ure the input. See “General Setup” on page 26.
To enable S/PDIF when using Pro Tools:
1 Make sure your have connected the external
digital device to the correct Mbox Pro S/PDIF
connector (In and Out).
2 Make sure the external device is powered on,
that it is set to the correct sample rate, and that
it is configured to provide S/PDIF clock (if rele-
vant to your device).
3 Launch Pro Tools.
4 Choose Hardware > Setup.
5 Click the Clock Source pop-up menu and
choose “S/PDIF.”
Once enabled in the Hardware Setup dialog, the
S/PDIF inputs become active and will pass audio
to Mbox Pro.
To enable S/PDIF when using a third-party
application:
1 Do one of the following:
• On Mac, launch System Preferences (Apple
menu > System Preferences), then double-
click Avid Mbox. (You can also open the
Driver Control Panel from the Applications
menu.)
– or –
• On Windows, choose Start > Control Panel >
Mbox.
2 In the Control Panel, choose Setup.
3 Select S/PDIF from the Clock Source pop-up
menu.
Mbox Pro supports external sync at sample
rates of up to 192 kHz.
S/PDIF inputs on Mbox Pro can sync to an
external Word clock. See “Word Clock” on
page 23 for configuration information.