Chapter-4: Main Menu Selections; Fm Style - Omnia ONE Installation And Operation Manual

Chapter-4: Main Menu Selections

This section presents a detailed overview of the Main Menu items for each of the 5 styles, their submenus (if any),
and details about each of the adjustable controls within.
Omnia.ONE FM adjustments are covered starting below.
Omnia.ONE SG adjustments are covered starting on Page 50.
Omnia.ONE AM adjustments are covered starting on Page 59.
Omnia.ONE Multicast/DAB adjustments are covered starting on Page 81.
Omnia.ONE Studio Pro adjustments are covered starting on Page 100.

FM Style

Here is a block diagram of the fully digital, DSP based processing stages within the Omnia.ONE FM:
The first processing stage is a Wideband AGC (Automatic Gain Control) for overall, automatic "hand on the pot"
leveling to keep the following multi-Band stages in their "sweet spot", followed by the Bass Enhancers (Deep Bass
EQ and Phat Bass) and the Crossover (XO), which splits the audio into 4 bands for optimum processing in each of
the Bass (L), Midrange (M), Presence (P) and Treble (H) frequency ranges.
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optional
Each of the four processing bands consists of an AGC followed by a peak limiter plus an additional 5
limiter band for the super-highs. Each AGC works on the average level in its band, passing faster transient peaks on
to the following peak limiter. The 4-Band AGC acts as both a "dynamic equalizer" and a gated compressor to add
consistency and increase density at the same time. This helps keep the following peak limiter stage from working
too hard, allowing it to work only on transient peaks.
The outputs of each limiter are re-combined in the Mixer (Mix), the output of which feeds the Pre-Emphasis and
Omnia's precision, non-aliasing peak Clipper (with integrated 15kHz low-pass filter). This stage filters the audio for
FM broadcast transmission and clips off any overshoots generated by the combining of the multi-Band limiters and
the low-pass filter.
The tightly controlled, filtered output of the Clipper feeds the built-in digital Stereo Generator (with composite
clipper), the headphone jack (with its own automatic de-emphasis) and the XLR outputs (analog and AES/EBU
digital) with selectable de-emphasis.
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