User Manual

Pro Tools Reference Guide46
HD OMNI Audio Interface
HD OMNI is a professional digital audio inter-
face designed for use with Pro Tools|HD sys-
tems. HD OMNI provides a compact preamp,
monitoring, and I/O solution for music produc-
tion and recording, and post production
studios.
HD OMNI Features
HD OMNI provides up to 8 discrete channels of
Pro Tools input and output, with 4-segment
LED meters for input or output (selectable).
Analog I/O
• 24-bit analog-to-digital (A/D) and digital-to-
analog (D/A) converters, with support for
sample rates up to 192 kHz
• 2 high-quality Mic/DI preamps (Channels
1–2)
• 2 combined XLR and 1/4-inch TRS front panel
inputs for microphone and instrument level
input
• 2 XLR back panel microphone inputs
• 2 1/4-inch TRS Send and 2 1/4-inch TRS Re-
turn back panel jacks for hardware inserts on
channels 1 and 2
• 4 analog TRS line level back panel inputs
(Channels 1–4)
• Soft Clip and Curv limiting circuits to protect
against clipping on analog input
• 8 channels of analog back panel output using
a DB-25 breakout cable (sold separately) with
variable output gain
• 2 channels of analog back panel output using
TRS (Mirrors channels 1–2 or 7–8 on DB-25
connector)
• Front panel stereo 1/4” headphone jack
Digital I/O
• 8 channels of AES/EBU output (up to 192 kHz
Single Wire) using a DB-25 breakout cable
(sold separately)
• 2 channels of AES/EBU XLR input (up to
192 kHz Single Wire)
• 2 channels of S/PDIF RCA input and output
(up to 192 kHz)
• 8 channels of ADAT TOSLINK input and out-
put
• Support for ADAT S/MUX Optical for sample
rates of 88.2 kHz, 96 kHz, 176.4 kHz, and
192 kHz
• Support for two channels of S/PDIF Optical
with sample rates of up to 96 kHz
• Real-time sample rate conversion (SRC) on
Digital Inputs 1–2 of either AES/EBU, S/PDIF,
or Optical (S/PDIF)
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)
HD OMNI provides multiple analog input
connections, but only provides up to four
channels of simultaneous analog input for
Pro Tools.
SRC is not supported with ADAT S/MUX.