Setup guide
Chapter 4: Configuring Your Pro Tools System 45
To change the default Sample Rate in the
Playback Engine:
1 Choose Setup > Playback Engine.
2 Select the sample rate from the Sample Rate
pop-up menu.
3 Click OK.
Delay Compensation Engine
The Delay Compensation Engine determines
how much DSP resources are dedicated for Delay
Compensation, which managing DSP delays in
the Pro Tools mixer.
Within a session, you can choose to enable or
disable Delay Compensation (Options > Delay
Compensation).
Delay Compensation automatically manages
DSP delays that occur on audio tracks, Auxiliary
Inputs, or Master Faders because of plug-in use
and mixer routing. With Delay Compensation
enabled, Pro Tools maintains phase coherent
time alignment between track outputs that have
plug-ins with differing DSP delays, tracks with
different mixing paths, tracks that are split off
and recombined within the mixer, and tracks
with hardware inserts.
To maintain phase coherent time alignment,
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
System Delay is shown in the Session Setup win-
dow.
Delay Compensation should be enabled during
mixing and playback for phase coherent time
alignment between track outputs.
When recording, in most cases Delay Compen-
sation can be enabled. However, it is still recom-
mended that you disable Delay Compensation
for certain dubbing workflows (such as when re-
cording to multiple audio tracks in series).
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.
You can change the sample rate when
creating a new Pro Tools session by
selecting a different sample rate in the
New Session dialog.
You can also change the default Sample
Rate in the Hardware dialog, as long as
no session is open.
With Delay Compensation enabled, it is
recommended that you do not use any in-
serts on any Auxiliary Input or Master
Fader tracks you may be using to control the
cue mix volume. Also, you should avoid us-
ing inserts on any record tracks. (Some low
latency inserts may be acceptable depend-
ing on the talent
∂
s preference.)
For more information on using Delay Com-
pensation, see the Pro Tools Reference
Guide.