Specifications

Pro Tools Reference Guide52
HD OMNI Audio Interface
HD OMNI is a professional digital audio interface
designed for use with Avid HD systems. HD
OMNI provides a compact preamp, monitoring,
and I/O solution for music production and record-
ing, 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-an-
alog (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 in-
put
• 2 XLR back panel microphone inputs
• 2 1/4-inch TRS Send and 2 1/4-inch TRS Return
back panel jacks for hardware inserts on chan-
nels 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-inch 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 output
• 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 Dig-
ital 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 ste-
reo and surround formats (up to 7.1 surround)
• 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.