Mid band limiter, Presence band limiter, High band limiter – Omnia Audio Omnia.ONE User Manual

Page 87: Bass clipper

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Mid Band Limiter


See description of settings for Low Band Limiter

Presence Band Limiter


See description of settings for Low Band Limiter

High Band Limiter


See description of settings for Low Band Limiter

Bass Clipper

The Bass Clipper operates between the output of the Low Band Limiter and the Low Band Mixer,
the output of which feeds the main Clipper. Its purpose is to keep excessive bass out of the main
Clipper, reducing bass-induced IM (intermodulation) distortion while keeping and even enhancing
the bass punch of the program material. There are two different Bass Clipper styles available,
“Girth” and “Tight”. (Described below.)


Clip Drv (Bass Clipper Drive)

Adjusts the drive level to the Bass Clipper over a range of +/- 6 dB. Higher settings will
increase the amount of Bass Clipping, increasing bass density while keeping the actual
peak bass level fed to the Mixer the same This allows you to reduce the Low Band Mixer
control to reduce IM distortion in the following main Clipper without reducing the
amount of perceived bass in the program material. Be careful! Too much clipping by the
Bass Clipper can soften bass 'punch'. It may also be heard as a “rattling” sound in the
bass.

Girth Clip

When “ON”, this Bass Clipper style is designed to create a phatter effect to low
frequencies, and it will help create the illusion of more bass on smaller speakers. Also,
this algorithm, which is mathematically derived, will contribute lower midrange IM
distortion components to the spectrum. So live voice, vocals and solo instruments that are
present along with strong bass in the program material will sound cleaner, yet will still
create an in-your-face effect to the low end.

When both the Girth Clip and Tight Clip settings are both set to “OFF”, the Bass Clipper
is effectively bypassed. Both algorithms can be “ON” at the same time but this is not
recommended.

Tight Clip

When “ON”, this Bass Clipper style is a straightforward hard limiter that will create a
deep, sub-harmonic effect to the audio. The drawback is that it can generate IM
(intermodulation) distortion in the following main Clipper.

When both the Girth Clip and Tight Clip settings are both set to “OFF”, the Bass Clipper
is effectively bypassed. Both algorithms can be “ON” at the same time but this is not
recommended.


Filtering

Adjusts the amount of time-aligned low-pass filtering after the Bass Clipper. Normally
this extra filtering is not needed but if heavy amounts of Bass Clipping are being used,

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