User Manual

Mbox User Guide24
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 di-
rectly into Pro Tools, you will usually use the
Pro Tools Internal clock source.
S/PDIF Use this setting if you are recording
through the Mbox S/PDIF input from an exter-
nal digital device. This setting will synchronize
Pro Tools to that digital device.
To select the Clock Source:
1 Choose Setup > Hardware.
2 Choose the clock source from the Clock Source
pop-up menu.
3 Click OK.
Configuring I/O Setup
Using the I/O Setup dialog, you can label
Pro Tools LE input, output, insert, and bus signal
paths. The I/O Setup dialog provides a graphical
representation of the inputs, outputs, and signal
routing of the Mbox.
Pro Tools LE has default I/O Setup settings that
will get you started. Use the I/O Setup dialog
only if you want to rename the default I/O
paths.
To rename I/O paths in I/O Setup:
1 Choose Setup > I/O.
2 Click the Input, Output, Insert, or Bus tab to dis-
play the corresponding connections.
3 To change the name of a path or subpath, dou-
ble-click directly on the Path Name, type a new
name for the path, and press Enter.
4 Click OK.
Configuring MIDI Setup
If you plan to use any MIDI devices with Pro Tools,
do one of the following:
 On Mac, configure your MIDI setup with Au-
dio MIDI Setup. See Appendix C, “Configuring
AMS (Mac OS X Only)” for details.
– or –
 On Windows, configure your MIDI setup with
MIDI Studio Setup. See Appendix D, “Configur-
ing MIDI Studio Setup (Windows Only)” for de-
tails.
Your digital input device must be connected
and powered on for Pro Tools to synchro-
nize to it. If your input device is not powered
on, leave the Clock Source set to Internal.
I/O Setup dialog for Mbox
See the Pro Tools Reference Guide (Help >
Pro Tools Reference Guide) for more infor-
mation on renaming I/O paths.