Setup guide
Chapter 4: Configuring Your Pro Tools System 25
Pro Tools Hardware Settings
In the Hardware Settings dialog, Pro Tools lets 
you set the default sample rate and clock source 
for your system, and configure the digital inputs 
on the 003 family interface.
Default Sample Rate
The Sample Rate setting appears as the default 
sample rate when you create a new session. (This 
setting is available in the Hardware Setup dialog 
only when no session is open.)
To change the default Sample Rate:
1 Choose Setup > Hardware. 
2 Select the sample rate from the Sample Rate 
pop-up menu.
3 Click OK.
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 (or using an external ana-
log or digital device for effects), you will usually 
use the Internal setting. 
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 synchronize Pro Tools to the digital device 
or common signal. The external clock source 
corresponds to the connector on the back of the 
003 family interface that is receiving your clock 
signal: S/PDIF (RCA), Optical, or Word Clock. If 
you are using an optical device, you also need to 
set the Optical Format (ADAT or S/PDIF). 
To select the Clock Source:
1 Choose Setup > Hardware. 
You can change the sample rate when 
creating a new Pro Tools session by selecting 
a different sample rate in the New Session 
dialog. See 
the Pro Tools Reference Guide for 
details.
Hardware Setup dialog
You can use only one pair of S/PDIF inputs 
(either RCA or Optical) at a time. At 
96 kHz, it is recommended that you use the 
S/PDIF (RCA) port.
Note that S/PDIF (RCA) output is still 
available when S/PDIF Optical is selected.










