Specifications
Pro Tools Reference Guide564
6 Choose a clock reference from the Clock Ref-
erence selector. Not all clock choices are avail-
able at all sample rates. See “External Clock
Sources” on page 552.)
7 Click the Online button on the Transport,
then click Play. Pro Tools generates and outputs
time code from the SYNC I/O.
Using MIDI Machine Control
Pro Tools provides the capability to transmit lo-
cation information to external devices, and to
control their transports, using MIDI Machine
Control (MMC).
Controlling External Devices
Using MMC
Any device that supports MMC (such as an Ale-
sis ADAT or Tascam DA-88) can be controlled di-
rectly from within Pro Tools, with either the de-
vice or Pro Tools acting as clock master.
The external devices supported by Pro Tools im-
plement “open loop” communications only. Be-
cause of this, while Pro Tools is the transport
master, any direct operation of the receiving de-
vice’s transport will not be communicated back
to Pro Tools. Instead, you can use the Transport
pop-up to select the external device (MMC in
the pop-up) and use the Pro Tools on-screen
transport controls to drive the device.
Pro Tools does not support remote track arming
of MMC-controlled external devices. You need
to manually arm tracks for recording on the ex-
ternal device.
Windows
Pro Tools on Windows uses your Multimedia
Setup to determine which MIDI devices are
available, and what their properties are. Refer to
your device’s installation and usage documenta-
tion to properly configure the device.
Enabling MIDI Machine Control in
Pro Tools
To enable MIDI Machine Control:
1 Choose Setups > Peripherals, then click the
Synchronization tab.
2 Select your synchronization peripheral from
the Synchronization/Device pop-up menu. If
you are using a MIDI interface, select “Generic
MTC Reader.” If using SYNC I/O, set the Port to
DigiSerial.
3 Select the appropriate port for synchroniza-
tion information. This is the port to which your
synchronization peripheral is attached.
Choosing a clock reference (SYNC I/O)
Digidesign’s MachineControl option sup-
ports remote track arming for Sony 9-pin
and V-LAN enabled devices. See “Remote
Track Arming” on page 566.