M-AUDIO Pro Tools Recording Studio - Manual (Page 1045)

Chapter 47: Working with Synchronization 1027
Taking a Device Offline
Use the Online pop-up menu in the Transport
Master selector to take a MIDI (or Machine) de-
vice offline.
To take a device offline:
1 Click the Transport Master selector.
2 In the Transport, click on the Online pop-up
menu and deselect the device (Machine or
MIDI). Device choices depend on the current
Transport Master and which devices have been
set up in Pro Tools.
To bring a device back online, click and reselect
it in the Online pop-up menu.
Setting Minimum Sync Delay
Lock-up time delay is the initial amount of
prime time your system’s devices need to
achieve synchronization “lock.” This amount
varies for each device. Pro Tools lock up delay is
set by entering a value for Minimum Sync Delay in
the Synchronization preferences. The lowest
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 Digidesign
MachineControl, enabling the Use Serial Time
Code setting in the Session Setup window will
make machines lock up much faster. (Serial time
code requires both the SYNC peripheral and ex-
ternal devices to be locked to house video refer-
ence.)
To set a Minimum Sync Delay:
1 Choose Setup > Preferences, and click the
Synchronization tab.
2 Enter a number of frames in the Minimum Sync
Delay field.
3 Click OK to close the Preferences 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
Deselecting a device to take it offline
The Online pop-up menu will only display
devices that have been properly set up in
Pro Tools.
To set up MIDI devices, see “Enabling MIDI
Machine Control in Pro Tools” on
page 1024.
To set up machine devices, see the
MachineControl Guide.
Online pop-up menu