Specifications

Pro Tools Reference Guide150
MMC ID
The MMC ID setting lets you specify the MMC ID
number for which MMC information will be sent.
MMC commands contain an ID number to identify
which machine should respond to the MMC com-
mand. There are 128 MMC ID numbers, from
0–127. The default of ID #127 is a special setting
that transmits to all 128 MMC IDs. With a setting
of 127, Pro Tools will transmit MMC commands
to all MMC IDs.
Preroll
The Preroll setting lets you specify a pre-roll time
in frames for your MMC slave device. Pre-roll is
needed to provide the device with sufficient time
to lock to the timecode transmitted by Pro Tools.
This value will vary depending on the external de-
vice. If the pre-roll time is insufficient, the device
may not be ready to lock until after the current
timecode position has passed.
MIDI Machine Control (Slave)
Pro Tools provides the following for configuring
MIDI Machine Control (Slave) settings.
Enable
When the Enable option is selected, Pro Tools is
the slave and it receives MMC commands from the
master device and sends MTC information back to
the slave device.
MMC ID
The MMC ID setting lets you specify the MMC ID
number for which MMC information will be re-
ceived.
9-Pin Machine Control (Deck
Control)
(Avid HDX, Pro Tools|HD, and HD Native
Systems with MachineControl Only)
The 9-Pin Machine Control (Deck Control) settings
let you configure a Machine Control device for Se-
rial Deck Control mode with Pro Tools. Serial
Deck Control mode is available whenever Ma-
chine Control is connected using the Serial Deck
Control cable. When connected for Serial Deck
Control mode, Machine Control enables all
Pro Tools track arming, synchronization, and
Transport features, as available on your system.
Serial Deck Control mode also supports 9-pin se-
rial timecode.
Enable
When the Enable option is selected, Pro Tools is in
Serial Deck Control mode.
Port
The Port setting lets you select the 9-pin Machine
Control port. The available choices depend on
your platform and configuration
Machine Type
After you select a port, Pro Tools automatically
polls the port to see what kind of machine is con-
nected. If the machine is recognized, Pro Tools
loads the corresponding
Machine Type. This in-
cludes the corresponding track layout and auto-
matically enters the name of that machine into the
Machine Track Arming window. However, if the
machine is not recognized, the “Generic 1” per-
sonality is automatically loaded.