Omnia Audio Omnia.11 - Manual (Page 64)

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Wide Band AGC (WB) (Advanced Tab)
Touch the WB submenu button and then the Advanced tab to display the advanced controls for the Omnia.11’s
Wideband AGC section. There are 6 variable controls and 1 drop-down control located in the WB AGC Advanced
tab menu area:
Window: At a setting of “0.0” the Wideband
AGC acts like a “regular” AGC where the gain is
always either increasing or decreasing.
Lower settings turn the window function on and
open up a “zone” within which the gain can rest
and actually do nothing!
When the window setting is on, the audio can
drop by the dB value of the selected setting before
the AGC reacts.
This can greatly help preserve natural program
dynamics without compromising overall gain-
riding ability. Try settings of -3 to -6dB to start.
WB AGC Menu (Advanced Tab)
RTP Level: RTP stands for Return to Platform. What RTP does is return the gain of the AGC to the selected
amount of gain reduction or “platform level” in the absence of audio. This control adjusts the “resting” or “platform”
gain reduction level the AGC will return to when audio pauses or stops (while gated).
The primary purpose of RTP is to prevent the AGC gate from increasing the gain unnecessarily or holding the gain
too low during pauses in audio, which could result in an increase in noise level or unexpected sudden increase in
level when the audio returns.
RTP Speed controls how fast the adjustment to the platform level (set with the RTP Level control above) takes
place – i.e., how long it takes the AGC to move to the target RTP gain reduction level. Range is from “0” (off) to 11
(fast).
Note: For maximum gain-riding range, we suggest a Wide Band RTP Speed setting of “0.0” for most popular music
formats which effectively disables RTP. Use higher settings if you have consistent board operators and don’t mind
that quieter program sections remain quieter.
Pause Threshold activates and changes the characteristics of the dual platform “smart” moment-to-moment gate
function. A setting of 0.0 turns off the smart gating, reverting it to conventional gate behavior. Settings other than
0.0 activate the smart gating function and higher settings allow the smart gating to be more aggressive.
Note: Middle-range settings can completely eliminate any perceived “pumping” effect during shorter quiet sections
without compromising overall longer-tem gain-riding ability.
Makeup Gain sets the amount of gain to be filled in during quieter, softer program passages. The range is “0.0”
(off) to “11” (maximum). This function is also program dependent, and it interacts somewhat with the main Attack
and Release time constants. As the attack/release times are modified, the system also scales the Make-Up Gain time
constants. Use less makeup gain for processing more faithful to the source material; use more makeup gain for
greater loudness and “density” (a more “compressed sound).
Filter Freq (High-pass Filter Frequency): This drop-down control adjusts the cutoff frequency of the built-in
high-pass (lo-cut) filter. Available settings are “Out” (not recommended), “20 Hz”, “30 Hz” and “40 Hz”. A setting
of at least “20 Hz” is suggested for most formats to keep sub-sonic signals from affecting the processing
performance.