Specifications

Pro Tools Reference Guide566
Machine Chases Memory Location With this op-
tion enabled, navigating to a specific location in
a session with a Memory Location causes a con-
nected transport to chase to that location.
Machine Follows Edit Insertion/Scrub With this
option enabled, navigating to a specific location
in a session by moving the selection point or by
scrubbing a track causes a connected transport
to chase to that location.
Synchronizing a Sequencer to
Pro Tools on Macintosh
To synchronize Pro Tools 6.x to a sequencer ap-
plication, configure AMS to provide MTC and
MMC (if desired). Configure AMS to provide at
least two nodes for inter-application communi-
cation (in the Pro Tools MIDI Setup window,
these nodes are provided and are labelled
Pro Tools Inputs 1 through 4).
Setting Minimum Sync Delay
Lock-up time delay is the amount of time your
system’s devices need to achieve synchroniza-
tion “lock.” This amount varies for each device.
Pro Tools lock up delay is set by entering a value
for Minimum Sync Delay in the Synchroniza-
tion window of the Peripherals dialog. The low-
est value available is 15 frames. Find the shortest
possible lock-up time that your equipment can
operate at consistently, and set this as the Mini-
mum Sync Delay. On systems utilizing Digide-
sign MachineControl, enabling the Use Serial
Time Code setting will make machines lock up
much faster. (Serial time code requires both the
SYNC I/O and external devices to be locked to
house video reference.)
To set a Minimum Sync Delay:
1 Choose Setups > Peripherals, and display the
Synchronization pane.
2 Enter a number of frames in the Minimum
Sync Delay field.
3 Click OK to close the Peripherals dialog.
Configuring Minimum Sync Delay for External
MMC Devices Locked to House Sync
When controlling a house-synced device from
Pro Tools through MMC, the device will first
lock to the MMC location and then align the
color framing. Within house sync code are 4
frames for ensuring color frame lock. If the min-
imum synchronization setup time is less than
the time required to achieve both location and
color frame lock, playback will begin before the
device has aligned the color frames. In this sce-
nario, you should set the Minimum Sync Delay
to be more than the time required for color
frame lock. This is not a problem with the SYNC
I/O, which will drop out of lock until the color
frame is locked.
Remote Track Arming
Digidesign’s MachineControl™ option for
Pro Tools allows you to remotely arm tracks on
supported 9-pin (or V-LAN for transport only)
decks. Without MachineControl, Pro Tools does
not support remote track arming of external de-
vices. MachineControl lets Pro Tools act as the
master or slave to external Sony 9-pin (or V-LAN
for transport only) machines, in addition to pro-
viding remote track arming from within
Pro Tools. (See the MachineControl Guide for
more information.)