ADAT Bridge I/O
34
Hardware Setup
When used with a MIDI Interface, the BRC
can function as the transport master while
Pro Tools (via the ADAT Bridge I/O) is the
clock master. This configuration is best for
synchronized audio playback, recording,
and track transfer from Pro Tools to ADAT
with 1/4 frame accuracy or better.
About 44.1 Sessions with the BRC
The BRC’s 48k clock input allows you to re-
solve the BRC to the ADAT Bridge’s word
clock out. With the ADAT XT, this requires
that all sessions be at 48k in order to avoid
clock anomalies (clicks and pops).
To connect this setup:
1
Make your primary connections as de-
scribed in “Primary Connections (Bridge
I/O to Pro Tools and ADAT)” on page 10.
2
Connect a 9-pin sync cable from the
BRC’s Remote Out port to the (master)
ADAT’s Sync In port.
3
Connect the Word Clock Out of the
ADAT Bridge I/O to the BRC 48 kHz In.
4
Connect the MIDI In and MIDI Out of
the BRC to the appropriate MIDI In/Out of
your MIDI Interface.
5
Make sure that your MIDI interface is
connected to your computer and other de-
vices, and that it is installed and configured
correctly.
BRC Settings for Pro Tools-to-ADAT Transfer
◆
Enable EXT SYNC on the BRC, then
check that the BRC external clock/sync
source is at 48kHz Input. (To change this
setting, press EDIT, then press EXT SYNC
until Clock Source is displayed in the LED.
Use the lowercase/uppercase increment ar-
rows to scroll to 48kHz Input. Press EDIT
again to exit.)
For highest-quality ADAT-to-Pro Tools
transfers with this setup, the BRC needs to
be the clock and positional master. The ex-
ample that follows shows how Digidesign’s
USD can be used to achieve this configura-
tion.
Using a Digidesign USD with a BRC
Digidesign’s USD is a high-quality, multi-
purpose synchronization peripheral. By
adding the USD to your system, you can
transfer from ADAT to Pro Tools or
Pro Tools to ADAT with near sample accu-
racy, using the BRC as your transport mas-
ter.
To integrate a USD with a BRC and ADAT
Bridge/Pro Tools system:
1
Make the primary connections as de-
scribed in “Primary Connections (Bridge
I/O to Pro Tools and ADAT)” on page 10.
2
Make sure your USD is connected to the
DigiSerial Port, and that your MIDI inter-
face is properly connected to your CPU.
3
Connect the BRC as described in “Hard-
ware Setup” on page 34, except:
4
Use a BNC cable to connect the USD’s
Slave Clock Out to the Slave Clock In of
your master Pro Tools audio interface.
5
Daisy-chain the Slave Clock signal to all
your audio interfaces as explained in your
Pro Tools System Installation Guide.
Summary of Contents for ADAT Bridge I/O
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