Omnia Audio Omnia.ONE - Manual (Page 62)

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Right Trim
Allows a +/-3dB adjustment of the right digital audio channel gain to correct minor
left/right balance problems in equipment following the Omnia.ONE. The left channel
output gain is not affected by this control and is set using the master AES Level control
previously described.
Samp. Rate (Sample Rate)
Configures the Output Sample Rate. Options are as follows:
[48k]
Slaves the output sample rate to the Omnia’s internal 48kHz sample clock. To
use output sample rates other than 48 kHz, Input or External sync must be used.
[Input]
Slaves the output sample rate to the sample rate present on the Omnia’s AES
digital input. Synchronization is possible over a range of sample rates from
32kHz to 96kHz.
[Ext] (External)
Slaves the output sample rate to the sample rate present on the Omnia’s AES
SYNC input. Synchronization is possible over a range of sample rates from
32Hz to 96kHz.
LW Level (Livewire Level)
Adjusts the master audio Output level for the Livewire output which appears on the rear
panel Ethernet / Livewire RJ-45 connector. This control adjusts both the left and right
stereo channels simultaneously.
Right Trim
Allows a +/-3dB adjustment of the right Livewire audio channel gain to correct minor
left/right balance problems in equipment following the Omnia.ONE. The left channel
output gain is not affected by this control and is set using the master LW Level control
previously described.
FM Options
For the transmission side of conventional FM broadcasting, some form of high-frequency
boost, or pre-emphasis is used. The most commonly used values of pre-emphasis are 50
and 75 µs (microseconds). For North and South America, 75 µs is used. In Europe,
Australia and New Zealand, 50 µs is employed. The factory default pre-emphasis setting
is 75 µs. The pre-emphasis selection affects the operation of the audio processing and is
applied to the composite, discrete, and digital outputs. The pre-emphasized signal at the
Left/Right and AES/EBU digital outputs can be restored to flat, if needed, by the De-
Emphasis control
<-Exit
Click on this option to return to the Output submenu.
[Pre-emph] (Pre-emphasis)
There are three choices: Off, 50 µs or 75 µs. Rotate the jog wheel to display the
correct value for your system and click the jog-wheel.
Note: Normally, the “Off” selection under the Pre-emphasis options would not
be used in conventional FM transmission applications, but is provided in
instances where processing of a flat signal is desired. One example would be
when preprocessing prior to a satellite uplink in distributed radio networks.