Setup guide

Appendix E: DSP-Induced Delays in Mixing 97
Using Sends
When you send a track to another track and re-
turn it to a track (audio, Auxiliary Input, or Mas-
ter Fader), the following delays are incurred:
Hardware sends also produce delays (see below).
With Delay Compensation enabled, Pro Tools
automatically compensates for delays due to
sends.
Using Hardware Inserts or Sends
When an audio interface is used on an insert or
send, there is delay introduced by going
through the D/A and A/D converter pair (for an-
alog devices) or digital I/O connection (for digi-
tal devices) on the audio interface.
With Delay Compensation enabled, Pro Tools
automatically compensates for these delays.
To compensate for the delay of any external
hardware devices (such as an effects unit) that is
used as a hardware insert in your session, you
can set the amount of Delay Compensation (in
milliseconds) for each external device. The con-
trols for setting hardware insert delay are located
in the I/O Setup dialog. See the Pro Tools Refer-
ence Guide for more information.
Sends delays for Pro Tools|HD systems
HD Mixer Sends Delay
Stereo Mixer Pre-fader send to
bus
10 samples
Post-fader send
to bus
8 samples
Surround
Mixer
Pre-fader send to
bus
8 samples
Post-fader send
to bus
12 samples