Setup guide

Appendix E: DSP-Induced Delays in Mixing 91
To configure the Delay Compensation Engine:
1 Choose Setup > Playback Engine.
2 From the Delay Compensation Engine pop-up
menu, select a Delay Compensation setting.
3 Click OK.
Delay Compensation Time Mode
Delay values can be specified in either samples
or milliseconds, as selected with the Delay Com-
pensation Time Mode setting in the Operation
Preferences page.
Delay Compensation Limit
The Delay Compensation limit is displayed in
samples in the Delay Compensation Engine
pop-up menu in the Playback Engine dialog.
This is the maximum amount of Delay Compen-
sation available for the session. This value is dif-
ferent depending on the session sample rate and
which Delay Compensation Engine option is se-
lected.
System Delay
Pro Tools adds the exact amount of delay to
each track necessary to make that particular
track’s delay equal to the total System Delay.
The total system delay is the longest delay re-
ported on a track, plus any additional delay
caused by mixer routing.
The System Delay is shown in the Session Setup
window (Session > Setup). Reference the re-
ported System Delay to monitor whether or not
you are close to exceeding the Delay Compensa-
tion limit.
Delay Compensation View
The Delay Compensation View displays the to-
tal amount of plug-in (TDM and RTAS) and
hardware insert delay on each track, lets you ap-
ply a user offset of track delay, and displays the
total amount of delay that Pro Tools applies to
each track. The Delay Compensation View can
be shown or hidden in the Mix Window.
To view Delay Compensation information:
 Select View > Mix Window > Delay Compensa-
tion.
System Delay in Session Setup window
Delay Compensation View
Delay Compensation view only shows the
insert delay for each track. To view the com-
plete system delay, including mixer delays,
see System Delay in the Session Setup win-
dow (see “System Delay” on page 91).
System Delay
Track
Compensation
Delay indicator
User Offset field
indicator