Test Options Menu - Omnia .9 Installation & User Manual

FM MENU METER OPTIONS
The History control determines allows you to "travel back in time" anywhere from the present to 24 hours in the past.
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With the slider set to 0%, the most recent information is displayed. Advancing the control looks further back in time.
The Y Zoom control determines the visible range of loudness measurements on the LKFS/LUFS scale on the left side of
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the graph. At its default setting of 1.0 X, levels from approximately -30dB to +6dB are displayed. A wider range of levels
can be seen by sliding this control to the left, while sliding the control to the right narrows the range.
The Y Center control determines which LKFS/LUFS value on the left scale appears centered on the display. The default
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setting of 50% places the middle of the graph at -12dB.

Test Options Menu

The Test Options menu contains two controls that are useful only in a test situation, and have no effect at all on the on-air
output. The Test Input patch point activates automatically and does not use processing power when inactive. Enabling the
Always Active control in the Test Input menu forces this patch point to remain active at all times and allows for cleaner A/B
switching.
MPX Noise Injection is useful when "racing" against your competition as received through a tuner with a composite
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output connected to one of Omnia.9's MPX Inputs. There is no such thing as perfect radio reception, and some noise
will always be present, so this control helps "level the playing field" a bit. To use this feature, set up two FFT spectrum
analyzer displays, one looking at MPX Output with Noise, and the other looking at the MPX Input. Then, using the MPX
Noise Injection control, you can visibly match the noise level of the received station so that you can A/B "MPX Input"
with "MPX Output with Noise" using either a monitor output or the client audio output. This allows a much more
carefully controlled and accurate comparison than simply changing presets on a tuner, especially since you can have two
oscilloscopes side by side displaying both signals to make sure that both are modulating at the exact same peak level.
The Pass-Through Delay Time control adjusts the delay time for the pass-through patch point, which contains the
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original, unprocessed audio but without compensation delay. It is normally in sync with the Input, not the Output.
Note:
If you feed the MPX signal from another processor into one of Omnia.9's MPX inputs, the pass-through patch
point can be used to feed the unprocessed program audio from Omnia.9 into the other processor. This is
true even when Omnia.9 is using its internal playback and regardless of which physical input is selected. The
output of the other processor can be monitored through Omnia.9's Speaker or Headphone Monitor Output.
The meters and controls of the other process will be in real time, without delay, as the compensation delay
will be before the processor instead of after.
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