User's Manual

Omnia 4.5 Use and Installation Guide – Ver 1.00a

Chapter 3

The Omnia 4.5fm and Audio Processing

This section presents an overview of the Omnia-4.5fm processor. Refer to the block

diagram shown on the Process submenu to provide a functional order to the various

processing sections. Note: More detailed technical information about the audio processing

employed in Omnia-4.5 can be found in the Technical Papers section on the Omnia web site

(www.omniaaudio.com).

Your Omnia-4.5fm comprises nine general processing sections shown below:

Following is a list of these sections, followed by an explanation of their functions. The name of the process

block as displayed on the Omnia 4.5 menu is shown in parenthesis.

1. An input Wideband AGC circuit for initial level control (WB),

2. A two-band cross-over (XO) for…

3. A two-band AGC (L and H),

4. A mixer circuit (Mix) to combine the signals from the two-band AGC,

5. A bass and stereo enhancement section (Enhance),

6. A five-band crossover (XO) for the limiter sections,

7. Five limiters (SL, L, M, H, SH),

8. A final summing mixer (Mix), and

9. Multiple clipper stages (Clip) at the output.