Omnia Industries Food Processor Omnia One Multicast Stero Audio Processor with SENSUS ユーザーズマニュアル

Wideband AGC (Automatic Gain Control) 

The wideband AGC rides the incoming audio levels like an automatic “hand on the fader”, keeping the average level 
more consistent for the following 4-Band AGC stage, enabling it to stay in its “sweet spot”.

 

 

WB AGC (Bypass, Engage) 

 

The wideband Automatic Gain Control (AGC) stage can be bypassed if desired, although more 
consistency is achieved when this stage is used.  

AGC Drv (AGC Drive) 

 
 

 

This control adjusts the amount of drive to the wideband AGC stage. Increasing the drive causes  

 

 

deeper compression to be achieved, and deeper compression allows quieter passages in the input  

 

 

audio to be raised further than if lesser drive (and less compression) was used. 

 

 

AGC Att (AGC Attack) 

 
 

 

The attack control adjusts how fast the AGC responds to sudden increases in audio level, and  

 

 

higher numbers equate to faster response times. Faster attack times reduce the transient nature of  

 

 

the input audio, while slower attack times improve it.   Extremely slow attack times must be used  

 

 

with caution because allowances must be made in later stages to not overload them during the time 

 

 

when the broadband AGC is adjusting the level downwards. 

 

AGC Rls (AGC Release) 

 
 

 

The release control adjusts how fast the AGC recovers from periods of more gain reduction  

 

 

when the input audio levels fall. Faster release times (higher numbers) result in a more dense  

 

 

sound. Even though the Omnia uses program controlled release algorithms, setting the control for  

 

 

extremely fast release times can result in ‘pumping’. 

 

Gt Thresh (Gate Threshold) 

 
 

 

When the input audio falls below a certain level, the gain control action of the AGC stage is  

 

 

“frozen” by the gate. The level at which this freeze, or hold takes place is controlled by the setting  

 

 

of the Gate Threshold control. Higher numbers cause the gate to activate at higher audio levels. In  

 

 

most applications this control should be adjusted to cause gating action to occur when the input  

 

 

audio falls about 20dB below nominal. The action of gate also prevents noise rush up during  

 

 

periods of no audio or during pauses in speech.  

RTZ Speed (Return To Zero Speed) 

 

RTZ stands for Return To Zero. What RTZ does is return the gain of the WB AGC section to an 
internally determined amount of gain reduction in the absence of audio. RTZ speed controls how 
fast this adjustment takes place – i.e., how long it takes the AGC to move to the target RTZ 
platform level. 

 

<-Exit 

 

Click on this option to return to the Adjust Processing submenu. 
 
 
 
 
 

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