Fm final limiter (clipper) (advanced tab) – Omnia Audio Omnia.11 User Manual
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The Voice Quality control adjusts how much the Omnia.11 will reduce the clipping automatically when mono voice
transmission is detected. This really helps to keep voices clean and full yet still loud and punchy. A setting of “0.0”
effectively turns this feature off. Typical settings will usually be in the “-0.5 to -1.0” dB range. If you cannot get
certain voices clean even when using this feature, that voice may be very asymmetrical. Make sure that the Phase
Rotator switch in the Wide Band AGC (WB) menu is turned on or that phase rotation is enabled in your
microphone processing, if available.
NOTE: For optimum performance of this feature, make sure the left and right channels feeding the Omnia.11 are
very well balanced.
Comp Clip Drive: This controls the drive to the DSP-based composite clipper in the Stereo Generator in dB. A
setting of 0.0dB is the same as the clipper being “off “. This clipper operates on the entire baseband signal up to 53
kHz, except for the 19 kHz pilot. No matter how hard you drive the composite clipper, you cannot clip the stereo
pilot. Embedded within the composite clipper is a newly designed phase linear low pass filter for superb SCA
protection. This filter removes clipping harmonics and prevents them from affecting the SCA and RDS region.
Please use the composite clipper sparingly. We suggest no more than about 0.5dB and you may find that none is
needed at all with the Omnia.11!
BS-412 Drive: This control will be grayed-out unless the BS-412 Power Limiter feature is turned on in the FM
Options submenu of the Output menu. When that feature is engaged, the clipper Drive control will be grayed-out
instead and this control will adjust the amount of drive to the BS-412 limiter over a range of -12.0 to +6.0dB in
0.5dB increments. More information about the BS-412 power limiter can be found on Page 26.
FM Final Limiter (Clipper) (Advanced Tab)
There are 1 switch and 2 variable controls in the FM Advanced tab.
Bass Style: This switch chooses between 2
available processing styles, Dynamic and Fixed,
for the Omnia.11’s Bass Clipper. The bass clipper
is a special filtered and fully anti-aliased clipper
stage just for the bass frequencies. Its job is to
keep the bass out of the main clipper as much as
possible, reducing distortion while maintaining or
increasing bass intensity and quality.
Dynamic: This mode observes the set threshold
but will automatically “let the bass out” if only
bass is present, increasing the impact of solo bass
and kick drum while ensuring that it stays clean.
Fixed: The bass clipper threshold mode is fixed so
solo bass or kick drum will not be enhanced.
Clipper Menu (Advanced Tab)
Bass Clip Threshold: This sets the threshold level of the Bass Clipper over a range of + or – 6dB. Negative
threshold settings indicate the maximum amount that the bass clipper will pull the bass out of the main clipper to
help prevent distortion.
Bass Clip Smooth: This control adds a smoothing filter to the bass clipper that can make it sound less harsh on
some material. The default setting is all the way up (11.0). The control setting can be reduced if you prefer your bass
to sound “harder” and less smooth, similar to the Omnia-6’s bass clipper’s “Tight” setting.