Delay Compensation - DigiDesign Pro Tools Reference Manual

Creating a Master Send Level Control
A Master Fader can control the overall level of
bus and output paths.
To create a Master send level control:
Choose Track > New.
1
Specify the track type (Master Fader), and
2
mono, stereo, or any of the supported multi-
channel formats for surround mixing.
Click Create.
3
Do one of the following:
4
• Set the output of the Master Fader to the
same path that you are using to send to an
Auxiliary Input track.
• Set the output of the Master Fader to match
the path that you have chosen for your ef-
fects send.
You can then adjust send levels to balance the
source tracks, and use the Master Fader as a mas-
ter level control for the entire submix.
Soloing Tracks in a Submix
Soloing any tracks implicitly mutes all other
tracks, including Auxiliary Inputs. Solo-safing
an Auxiliary Input prevents this implicit muting
and lets the Auxiliary Input continue to pass au-
dio when its source tracks are in Solo.
To solo safe an Auxiliary Input:
Control-click (Windows) or Command-click
■
(Mac) the Solo button on the Auxiliary Input
track.
To solo an individual track that is part of a group:
Start-click (Windows) or Control-click (Mac)
■
the Solo button.
Generating Stereo Output from a Mono
Send/Return
You can use an Auxiliary Input to generate a ste-
reo output from a mono send. Set the send des-
tination to a mono Auxiliary Input track and
place a mono to stereo plug-in on the Auxiliary
Input. The output of the Auxiliary Input be-
comes stereo.
To create a "stereo" effect from a mono source,
you must use reverb, delay, or other time do-
main effects.

Delay Compensation

(Pro Tools HD Only)
Pro Tools provides Delay Compensation for
managing DSP delays that occur on audio, Aux-
iliary Input, Master Fader, or Instrument tracks
because of plug-in use and mixer routing. With
Delay Compensation enabled, Pro Tools main-
tains time-alignment between tracks 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 time alignment, Pro Tools adds the
exact amount of delay to each track necessary to
make that particular track's delay equal to the
delay of the track that has the longest delay.
Delay Compensation should be enabled during
mixing and playback for optimal delay-compen-
sated sound. In some cases when recording, De-
lay Compensation should be turned off.
To enable Delay Compensation:
Choose Options > Delay Compensation.
■
Chapter 25: Basic Mixing 553