User guide

Pro Tools|HD Native User Guide8
Monitoring
• An additional stereo “CUE” output path in
Pro Tools for headphone monitoring from the
front panel headphone jack
• Front panel Control Room (MAIN/ALT) and
Headphone monitoring volume control
• Flexible monitoring with fold-down from all
stereo and surround formats (up to 7.1 sur-
round)
• Input mixer for low latency direct monitoring
of a variety of incoming signals (configured in
the Pro Tools Hardware Setup)
Synchronization
• Loop Sync input and output for connecting
additional Pro Tools|HD interfaces and pe-
ripherals
• External Clock input and output for synchro-
nizing HD OMNI with external Word Clock
devices
HD I/O
HD I/O is a multichannel digital audio interface
designed for use with Pro Tools|HD and
Pro Tools|HD Native systems. HD I/O features
extremely high quality 24-bit analog-to-digital
(A/D) and digital-to-analog (D/A) converters,
and supports sample rates of up to 192 kHz.
HD I/O comes in three standard configurations:
• 8 x 8 x 8 (8 analog in, 8 analog out, and 8
digital in and out)
• 16 x 16 analog in and out
• 16 x 16 digital in and out
You can also add or remove HD I/O Analog Ex-
pansion cards (ADC and DAC) and HD I/O Dig-
ital Expansion cards for custom configurations.
HD I/O Features
HD I/O provides up to 16 discrete channels of
Pro Tools input and output, with 4-segment
LED meters for input and output.
Analog I/O
• Up to sixteen channels of 24-bit D/A and A/D
converters for superior analog input and out-
put at sample rates of 44.1 kHz, 48 kHz,
88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
with Analog In and Analog Out HD I/O cards
• Soft Clip and Curv limiting circuits to protect
against clipping on analog input
For more information about HD OMNI, see
the HD OMNI Guide.