User's Manual

Omnia 4.5 Use and Installation Guide – Version 1.00a

memory card. During system power-up, the front panel LCD screens display several status screens while the

operating software and DSP code is loaded. Once the main Omnia-4.5fm Main Menu is shown on the right screen,

and the Meter Screen is shown on the left display, the unit is ready for use.

Rear Panel Connections

Omnia 4.5 Back Panel Connections

Audio Inputs—Analog & Digital (Female XLR)

Balanced XLR-type connectors are used as input connectors for both the analog and AES-3 digital audio. Both

analog and digital input sources may be connected simultaneously, however, only the input source that has been set in

the Input menu is active. Analog/Digital Input source selection is done through the Input Source software parameter

setting in the Input Menu.

The stereo analog inputs are designed for standard +4 dBu balanced signals. Pin 2 is Hot. The digital AES-3 inputs

(IN and EXT. SYNC) accept any sampling rate between 32 and 96 kHz. No user adjustment is necessary on the AES

input since a high-quality sample rate converter is built into the unit. Individual channel gain and level setting for

both analog and digital is done using the Input Gain software parameter settings in the Input Menu.

A Note About Relative Phase: If the relative phase of your installation (including the Omnia-4.5fm) differs from

that of your existing system, your announcers may feel that they sound “weird” in their headphones. If this occurs,

then the relative phase of the processor is 180 degrees from what your air talent is used to. To remedy this, you can

either reverse the polarity of both of the analog inputs or change the Invert Both software parameter setting in the

Omnia-4.5fm Input Menu.

Audio Outputs—Analog & Digital (Male XLR)

Individual Left and Right analog outputs are available on two male XLR jacks, as is a stereo digital AES-3 output.

The digital output (with selectable output sample rate) is produced directly from the output of the final processing

section. The analog output is derived from a D/A converter driven from the digital output.

Note: Both the analog and digital AES-3 outputs are always active and can be used simultaneously.