Avid HD OMNI Preamp, I/O, and Monitoring Pro Tools HD Series Interface - Manual (Page 32)

HD OMNI Guide 28
Analog In
The Analog In page of the Hardware Setup dia-
log lets you set the Reference Level for the phys-
ical analog inputs on HD OMNI. You can also
apply a limiter to each of the four analog inputs.
Reference Level
Select the appropriate Reference Level for each of
the four analog input channels. Input operating
levels are switchable between +4 dBu and
–10 dBV operation.
Limiter
HD OMNI provides options for limiting on each
of the four input channels. Select an option
from the corresponding
Limiter pop-up menu:
None Applies no limiting to the incoming ana-
log signal.
Soft Clip Attenuates the incoming analog signal,
providing extra protection from temporary clip-
ping transients that can cause digital distortion
when they exceed the maximum input of the
unit. With Soft Clip enabled, HD OMNI sup-
ports an additional 4 dB of headroom by round-
ing off the top 4 dB to the clip point. This is use-
ful for eliminating stray transients.
Curv Attenuates the incoming analog signal us-
ing a soft knee limiter circuit. This guarantees
super soft limiting without becoming hard, even
with large overloads on input.
Analog Out
The Analog Out page of the Hardware Setup di-
alog lets you set the Output Level for the physi-
cal analog outputs on HD OMNI. You can also
select which channels are mirrored on the back
panel TRS Outputs.
Output Level
Select the appropriate Output Level for each of
the eight analog output channels. HD OMNI
provides two options for output levels:
Speaker (+10 dBu) Select this option for output
channels connected directly to powered moni-
tors.
Line (+24 dBu) Select this option for output
channels connected to line-level devices (such
as an analog mixing console).
Hardware Setup, Analog In page
Hardware Setup, Analog Out page