Omnia Omnia-6EX / EXi Installation And Operation Manual

Contents

Omnia Omnia-6EX / EXi Installation And Operation Manual Manual pdf 40 page image

Omnia-6ex Use and Operation Manual – V: 1.2040OutputOutput Menu FM Options MenuThere are five settings under this menu item: There are four settings under this menu item:• Peak Output Level • Diversity Delay (Exi Only)• Set Levels • ITU BS-412 Multiplex Power Limiter• AES-1 Output Sample Rate • Pre-Emphasis• Outputs (Limiter Routing) • De-Emphasis• FM OptionsPeak Output LevelThe peak output level adjustment is done using the Master output control. This sets both the Left/Right outputs intandem. If there is a variance in output level between the Left/Right channels, the Right Trim is used to balance thepeak output levels. These level settings take place in the digital domain and before any D/A converters. Therefore,the output level settings affect the digital (AES/EBU) outputs and the analog outputs, including the headphones (butnot the Composite MPX outputs). Conventional FM and HD/DAB levels are adjusted separately. (See Set Levelsbelow) The control range is from –2.0 dBu (-24 dBFS) to +22 dBu (0dBFS) peak output level in precise 0.1 dBsteps. Since the Omnia defines the absolute peak levels prior to this control, this level control is normally set to themaximum acceptable input level, or just below it, of the device that Omnia-6 is driving (STL, transmitter, etc). Nooffset for headroom in the following system is required.Set LevelsThis function determines which output the Peak Output Level controls operate. When FM Out is selected, thecontrols set the conventional FM output levels. This level is also sent to the Output Bargraphs on the Left LCDscreen. When HD/DAB is selected, the adjustment controls and bargraphs are set to adjust and monitor the output ofthe Look Ahead limiter.AES-1 Sample RateOne of four standard sample rates (32, 44.1, 48 and 96 kHz) can be selected for the AES-1 digital output. The outputsample rate can also follow the incoming sample rate on the AES input, (Sync to Input) or lock to the External AESSync Input when Sync to Ext if Av (available) is also selected. If the External Sync signal fails, AES-1 will revert tothe selected internal sample rate. Sync automatically returns to external as soon as a valid signal is present. Note:The output sample rate for the AES-2 digital output is also adjustable by using hardware jumpers on the internal