Omnia Audio Omnia.ONE - Manual (Page 83)

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is unable to reproduce. On systems with larger speakers, the effect of Phat Bass
becomes subtler because the extended frequency response of those systems allows the
fundamentals of the low notes to be heard, masking the added harmonics contributed by
Phat Bass. Be careful though, too much Phat Bass boost can lead to excessive gain
reduction in the lower AGC bands and may cause muddiness with certain program
material. A little goes a long way.
Warmth
This Warm Bass EQ is a shelf boost at 150 Hz. Warmth EQ compensates for program
material that is naturally lacking in upper-bass fullness. Be judicious about applying too
much, as the resonant frequency of many automobile interiors lies in this frequency
range! Also, too much can cause excessive gain reduction in the following 4-Band AGC
stage. A little can give a nice, subtle warmth enhancement to voices and other program
material that may otherwise sound too thin.
[HF EQ] (High Frequency EQ)
This control adds high-frequency boost that conforms to the NRSC pre-emphasis
recommendation for AM broadcasting. Increasing HF EQ will add boost to the presence
and treble range that follows a high frequency shelf network that is inserted before the
multiband limiter section. If it is set to 10 dB, the boost at just below 10kHz will
correspond to the NRSC curve.
<-Exit
Click on this option to return to the Adjust Processing submenu.
Xover (Crossover)
The crossover splits the audio signal into 4 independent bands to enable optimum processing for the bass
(L), midrange (M), presence (P) and treble (H) frequency ranges. There are two four-band processing
stages that share the same crossover. The crossover points are 180Hz, 1kHz and 3.3kHz plus 6.5kHz for the
optional 5
th
Limiter band.
The first stage is the 4-Band AGC (Automatic Gain Control) stage. This stage operates on the average
level, letting faster peaks through to the following limiter stage. It dynamically equalizes the program
material to add consistency while gently building up density to keep the following peak limiter stages from
working too hard. The output of each of the 4-Band AGC bands directly feed their corresponding peak
limiter stage. The 4-Band Limiter stage operates on the peak levels of the program material with each band
optimized for its frequency range, controlling peak levels for the following pre-emphasis and clipper
stages.
Low Drive
Adjusts the amount of gain reduction in the Low Band AGC. Higher numbers result in
more drive and because of the increased compression, a more consistent output from the
band.
Mid Drive
Adjusts the amount of gain reduction in the Mid Band AGC. Higher numbers result in
more drive and because of the increased compression, a more consistent output from the
band.