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Backing off the clipping sections first will allow the processing to retain a level of competitive loudness while
enhancing quality, and the overall dynamic texture will be affected less.
Start with reducing the
Clipper
amount in 0.5 dB steps. It’s surprising how much detail can be restored from just a
small change of 0.5 dB. Continue to reduce it until the loudness just falls off too much and then bring it back up a
little from there.
Generally, changes in the
Clipper
drive will have the most noticeable effect on quality, but it will also affect the
relative loudness level, too. You’ll need to find a “happy medium” that’s right for you.
Air-Sound Equalization Changes
Tailoring the shape of the overall audio spectrum can be done in three different sections:
1.
The relative
drive
settings in the multiband AGC
Xover
menu.
2.
The relative
Drive
settings in the individual multiband Limiter menus.
3.
The settings of the multiband limiter
Mixer
controls.
There is also a separate “
HF EQ
” control which affects only the “brightness” by allowing you to adjust the amount
of NRSC-compliant pre-emphasis that is applied.
All these options will provide noticeable change in EQ. We suggest you use the first two listed options to shape the
overall frequency balance and the “HF EQ” control to control the brightness of the higher frequencies.
In either case, an EQ change is still followed by a
dynamically
controlled stage. Therefore any excessive EQ change
can be 'undone' by the subsequent AGC or Limiter.
The last option, adjusting the
Mixer
, is designed to provide a final
minor
trim to the spectrum. If you've noticed that
we calibrated these controls in 0.10 dB steps, then you know what we mean when we say these controls are for fine
trim!
Since this stage is
after
all of the dynamic AGC and Limiting, a radical change in level in the
Mixer
will result in
additional and possibly excessive clipping distortion of audio in that band. We suggest that changes implemented
here be limited to no more than about 1.0 dB. Naturally, the decrease in mix level can be done to any desired
amount.
Thunder Bass
Omnia ONE AM has the power to shake the walls with low end! If your source material has it, Omnia ONE AM can
expose that deep bass and do it with muscle! Tailoring Thunder Bass for more dominance is simple, and is done by
adjusting the following parameters and in the order listed:
1.
Increase the amount of
Bass
boost in the
Enhance
section.
2.
Increase the
Drive
to the
Low Frequency Limiter.
3.
Increase the
Release
setting in the
Low Frequency Limiter.
4.
Increase the
Drive
to the
Bass Clipper.
Just as in the section on ‘overdoing’ processing, again moderation is the key. If all of the above changes are made in
unison there is a possibility of severe low frequency buildup. This would unbalance the audio spectrum and produce
the illusion of “lost” presence and high frequencies.
Generally, an increase in the Bass boost alone will provide a sufficient enhancement to the low end. Bass
adjustments should typically be done after selecting the preset you wish to use.
