Specifications

Pro Tools|HD Getting Started Guide62
Connecting Effects Units Digitally
To use your audio interface’s inputs and outputs
as effects sends and returns to a digital effects
device, set your interface’s Clock Source to Inter-
nal in the Hardware Setup dialog (unless it is ref-
erenced to another clock source or peripheral).
You should then set your digital effects devices
to accept an external digital clock so that they
will synchronize themselves to Pro Tools. Make
sure you set the channel pair to the digital input
in the Hardware Setup dialog (or I/O Setup dia-
log).
Connecting MIDI Devices
By adding a compatible MIDI interface to your
system, you can take advantage of all the MIDI
features of Pro Tools, including recording and
editing MIDI tracks, and synchronizing to MIDI
Time Code or MIDI beat clock.
USB MIDI interfaces work effectively with
Pro Tools systems on Windows or Mac. Serial
MIDI interfaces are supported on Windows sys-
tems only.
To connect MIDI devices to your system:
1 Connect the MIDI interface to your computer
according to the MIDI interface’s documenta-
tion.
2 Install any MIDI driver software required by
the MIDI interface. (Once you have installed
your MIDI interface hardware and software,
confirm that it is working properly using the
procedure given in the interface’s documenta-
tion.)
3 Connect the MIDI OUT of your MIDI device
to the MIDI IN of your MIDI interface.
4 Connect the MIDI IN of your MIDI device to
the MIDI OUT of your MIDI interface.
Connecting SMPTE
Synchronization Devices
If you intend to synchronize Pro Tools to exter-
nal devices with SMPTE, your system must be
connected properly. For details on SMPTE and
synchronization, see the Pro Tools Reference
Guide or the SYNC I/O Guide.
Digidesign SYNC I/O
Digidesign’s SYNC I/O is a multi-purpose syn-
chronization peripheral that provides all the
functions and connections needed to synchro-
nize to a variety of devices with Pro Tools|HD.
SYNC I/O lets you synchronize Pro Tools to
LTC, VITC, and Bi-Phase/Tach, or internal for
positional reference (time code), and supports
all major clock references.
Only USB MIDI interfaces are compatible
with Pro Tools systems on Mac OS X.
Modem-to-serial port adapters and serial
MIDI devices are not supported.
See Appendix C, “Configuring MIDI Studio
Setup (Windows Only)”or Appendix D,
“Configuring AMS (Mac OS X Only)” for
detailed information on how to identify ex-
ternal MIDI devices connected to your MIDI
interface and configure your MIDI studio
for use with Pro Tools.