Specifications

Pro Tools Reference Guide594
The tables below list the delay incurred by each
type of analog and digital output available in
Pro Tools|HD and Pro Tools|24 MIX systems.
Bouncing Tracks
Bus-based Bounces When you bus a track to an-
other track and record the result, the following
delays are incurred:
Bounce to Disk The File > Bounce To Disk com-
mand causes no delay on a TDM-equipped sys-
tem since delay compensation for the bounce
function is built in. This form of bouncing may
be more desirable than bus-based bouncing. For
details, see “Bounce to Disk” on page 482.
HD-series I/O characteristics
Interface and
I/O Port
Surround Mixer Stereo Mixer
192 I/O or
192 Digital
I/O
AES/EBU
24 samples 22 samples
192 I/O
Analog
105 samples 103 samples
96 I/O
AES/EBU
21 samples 19 samples
96 I/O
Analog
79 samples 77 samples
I/O characteristics for MIX-series audio interfaces
connected to HD Legacy Port
Interface and
I/O Port
Surround Mixer Stereo Mixer
888|24 I/O
AES/EBU
18 samples 16 samples
888|24 I/O
Analog
82 samples 80 samples
888|20 I/O
AES/EBU
20 samples 18 samples
888|20 I/O
Analog
18 samples 16 samples
ADAT Bridge
Optical
18 samples 16 samples
ADAT Bridge
S/PDIF
76 samples 74 samples
1622 I/O
Optical
18 16 samples
1622 I/O
S/PDIF
76 74 samples
On the 888|24 I/O, the Digital I/O delay in-
curred when using AES/EBU or S/PDIF is
identical.
I/O characteristics for MIX-series audio interfaces
connected to MIX-series systems
Interface A/D/A delay Digital I/O
888|24 I/O 81 samples 17 samples
882|20 I/O 75 samples 17 samples
1622 I/O 75 samples 17 samples
Bus-based bounce delays for each Pro Tools system
Pro Tools System Delay
Pro Tools|HD-series
(Stereo Mixer)
10 samples
Pro Tools|HD-series
(Surround Mixer)
8 samples
Pro Tools|24 MIX-series 10 samples