Specifications

Pro Tools|HD Getting Started Guide86
Delay Compensation on Auxiliary
Inputs
Delay Compensation on Auxiliary Inputs can be
bypassed to let you monitor outside sources
(such as the audio tracks of a slaved video deck)
with minimal latency, while still reporting the
track’s delay.
To bypass an Auxiliary Input’s Delay
Compensation:
 Start-Control-click (Windows) or Command-
Control-click (Mac) the Track Compensation in-
dicator. The reported track delay will be zero,
and will appear grayed out.
Delay Factors
With Pro Tools HD, delay is incurred when you
perform the following processes:
• Bouncing tracks. See “Bouncing Tracks” on
page 86.
• Real-time processing with plug-in inserts.
See “Using Plug-in Inserts” on page 86.
• Mixing and routing with sends. See “Using
Sends” on page 87.
• Mixing and routing with hardware I/O
(sends or inserts). “Using Hardware Inserts
or Sends” on page 87.
Bouncing Tracks
Bouncing to tracks causes additional delay, as
follows:
Bus-Based Bounces When you bus a track to an-
other track and record the result, the following
delays are incurred:
With Delay Compensation enabled, Pro Tools
automatically compensates for bus-based de-
lays.
Bounce to Disk The File > Bounce to > Disk com-
mand causes no delay on Pro Tools|HD systems,
because Delay Compensation for the bounce
function is built in. Because of this, Bounce to
Disk may be more desirable than bus recording.
For more information, see the Pro Tools Reference
Guide.
Using Plug-in Inserts
Using plug-in inserts on a track causes addi-
tional delay.
With Delay Compensation enabled, Pro Tools
can automatically compensate for delays due to
plug-in inserts.
Bus-based bounce delays for each Pro Tools system
HD Mixer Delay
Stereo Mixer 10 samples
Surround Mixer 8 samples
For specific information on the delay
amounts for DigiRack or Digidesign plug-
ins, refer to your DigiRack Plug-ins Guide or
Digidesign Plug-ins Guide
.