User guide

Chapter 5: Using the Driver Control Panel 27
Hardware Settings
This section of the Control Panel provides con-
trols for setting parameters on your interface
when it is connected to a computer using a
FireWire cable (called Hosted Mode).
Disable Host Control
This setting lets you wrest control of the Driver
Control Panel from Pro Tools. When you launch
Pro Tools, it takes control of the Driver Control
Panel's first stereo mixer. If you want to obtain
full manual control of the Driver Control Panel,
choose this option.
Clock Source
This setting determines the clock source to
which Mbox Pro is synchronized.
Internal If you are using Mbox Pro by itself (for
example, without other digital devices or an ex-
ternal clock), select the Internal option for the in-
terface to work properly
S/PDIF If you have connected a S/PDIF device to
your Mbox Pro and would like to use that device
as the master clock source, select the S/PDIF op-
tion. This will make Mbox Pro clock to the exter-
nal device’s clock.
Word Clock If you are transferring material into
Pro Tools from an external digital device, or if
you utilize a common house clock signal, you
will need to synchronize Pro Tools to that digital
device or common signal. Select the Word Clock
option.
Sample Rate
This drop-down menu sets the sample rate of
Mbox Pro. Note that when using the interface
with an ASIO or CoreAudio application, the
sample rate can also be determined by your au-
dio application. This parameter may not be ed-
itable from within the Mbox Pro Control Panel
if your audio application is running. In this case,
any changes to the sample rate must be made
through the audio application itself. If the appli-
cation does not provide a way to set the sample
rate, quit the application, then change the sam-
ple rate through the Mbox Pro Control Panel.
When the sample rate is locked to an external
digital clock source, the Mbox Pro’s LED is solid
blue. When the sample rate is set and there is no
digital clock source detected (or cannot lock to it
for some reason), the LED will blink. (A message
appears at the bottom of the Hardware Settings
section stating that: “External clock not de-
tected, Audio Streaming is Disabled.”).
If you want to use the Low Latency Monitor-
ing option in Pro Tools, this option must not
be checked.