User Manual

Pro Tools Reference Guide44
HD OMNI Audio Interface
HD OMNI is a professional digital audio interface
designed for use with Pro Tools HD systems.
HD OMNI provides a compact preamp, monitor-
ing, and I/O solution for music production and re-
cording, 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)
Synchronization
• Loop Sync input and output for connecting
additional HD peripherals
• External Clock input and output for synchroniz-
ing HD OMNI with external Word Clock de-
vices
HD OMNI provides multiple analog input con-
nections, but only provides up to four channels
of simultaneous analog input for Pro Tools.
SRC is not supported with ADAT S/MUX.
For more information, see the HD OMNI Guide.