Omnia Audio Omnia-3 Operating Manual

Omnia-3

Audio Processor

Installation and Operation Manual

Version 2.1 / June 2005

Applicable to fm Turbo, am and net/drm styles

with v3.04.01 Release Software and Higher

A Telos Company

Omnia ● 2101 Superior Avenue Cleveland, Ohio 44114 USA

TEL: [phone] ● FAX: [phone] ● Email: [e-mail]

Omnia Europe ● Johannistraβe 6 D-85354 Freising Germany

TEL: [phone] ● FAX [phone] ● Email: [e-mail] www.omniaaudio.com

www.omniaaudio.com

GREETINGS!

Welcome to Omnia-3, the next generation of broadcast audio signal processing. Omnia-3
applies the same advanced design philosophy as the entire Omnia family, to yield
performance and flexibility never before available, in this class of processor. Omnia-3,
like all Omnia products, delivers crystal-clear highs, thundering bass and amazing
loudness, with none of that “digital grunge aftertaste!”

Omnia-3 is a fully digital system that is available in three versions, pre-configured to
match the processing needs of any broadcaster. For FM broadcasters there’s the Omnia­3fm Turbo with integral stereo encoder. For AM broadcasters there’s Omnia-3am. And,
for Internet webcasters or Digital Radio, there’s Omnia-3net/drm, optimized for the
unique demands of encoded audio.

Omnia-3’s flexibility is built-into the design. Instead of keeping the processing
algorithms on a set of EPROMs or proprietary potted modules, the system’s DSP (Digital
Signal Processing) resources are entirely configured through software contained on a
plug-in PC Card (PCMCIA-type). Even fundamental rearrangements of the system
architecture can be easily accomplished in the field by plugging in a new PC card or, by
using the free downloadable Windows-based remote control application, through local
serial RS-232 connection or remotely through the optional plug-in modem card or
optional Ethernet network interface.

Omnia-3, the promise of digital. . . delivered.

Here’s to Dial Dominance,

Frank Foti

SAFETY INSTRUCTIONS

1. Read All Instructions. All safety and
operating instructions must be read before operating
the product.

2. Retain All Instructions. All safety and
operating instructions must be retained for future
reference.

3. Heed All Warnings. All warnings on the
product and those listed in the operating instructions
must be adhered to.

4. Follow All Instructions. All operating and
product usage instructions must be followed.

5. Heat. This product must be situated away
from any heat sources such as radiators, heat registers,
stoves, or other products (including power amplifiers)
that produce heat.

6. Ventilation. Slots and openings in the
product are provided for ventilation. They ensure
reliable operation of the product, keeping it from
overheating. These openings must not be blocked nor
covered during operation. This product should not be
placed into a rack unless proper ventilation is provided
through following the manufacturer’s recommended
installation procedures.

7. Water and Moisture. Do not use this
product near water—for example; near a bath tub,
wash bowl, kitchen sink or laundry tub; in a wet
basement; or near a swimming pool or the like.

8. Attachments. Do not use any attachments
not recommended by the product manufacturer as they
may cause hazards.

9. Power Sources. This product must be
operated from the type of power source indicated on
the marking label and in the installation instructions. If
you are not sure of the type of power supplied to your
facility, consult your local power company.

10. Grounding and Polarization. This product is
equipped with a polarized AC plug with integral safety
ground pin. Do not defeat the safety ground in any
manner.

11. Power Cord Protection. Power supply cords
must be routed so that they are not likely to be walked
on nor pinched by items placed upon or against them.
Pay particular attention to the cords at AC wall plugs
and convenience receptacles, and at the point where
the cord plugs into the product.

12. Lightning. For added protection for this
product during a lightning storm, or when it is left
unattended and unused for long periods of time,
unplug it from the AC wall outlet. This will prevent
damage to the product due to lightning and power line
surges.

13. Overloading. Do not overload AC wall
outlets, extension cords, or integral convenience
outlets as this can result in a fire or electric shock
hazard.

14. Object and Liquid Entry. Never push
objects of any kind into this product through openings
as they may touch dangerous voltage points or short­out parts that could result in a fire or electric shock.
Never spill liquid of any kind on the product.

15. Accessories. Do not place this product on
an unstable cart, stand, tripod, bracket, or table. The
product may fall, causing serious damage to a child or
adult, and serious damage to the product. Any
mounting of the product needs to follow
manufacturer’s installation instructions.

16. A Product and Cart Combination should be
moved with care. Quick stops, excessive force, and
uneven surfaces may cause the product and the cart
combination to overturn.

17. Servicing. Refer all servicing to qualified
servicing personnel.

18. Damage Requiring Service. Unplug this
product from the wall AC outlet and refer servicing to
qualified service personnel under the following
conditions:
a. When the AC cord or plug is damaged.
b. If liquid has been spilled or objects have
fallen into the product.
c. If the product has been exposed to rain or
water.
d. If the product does not operate normally
(following operating instructions).
e. If the product has been dropped or damaged
in any way.
f. When the product exhibits a distinct change
in performance. This indicates a need for
service.

19. Replacement Parts. When replacement parts
are required, be sure the service technician has used
replacement parts specified by the manufacturer or
that have the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric
shock, or other hazards.

20. Safety Check. Upon completion of any
repairs to this product, ask the service technician to
perform safety checks to determine that the product is
in proper operating condition.

21. Cleaning. Do not use liquid cleaners or
aerosol cleaners. Use only a damp cloth for cleaning.

HAZARD / WARNING LABELS

The Exclamation Point
symbol, within an
equilateral triangle, alerts
the user to the presence
of important operating
and maintenance
(servicing) instructions in
product literature and
instruction manuals. manuals.

The Lightning Flash With

Arrowhead symbol, within an

equilateral triangle, alerts the

user to the presence of

uninsulated dangerous voltage

within the product's enclosure

that may be of sufficient

magnitude to constitute a risk

of electric shock.

4

WARNING -- This equipment generates, uses, and can radiate radio frequency energy. If not installed

and used in accordance with the instructions in this manual it may cause interference to radio
communications. It has been tested and found to comply with the limits for a Class A computing device
(pursuant to subpart J of Part 15 FCC Rules), designed to provide reasonable protection against such
interference when operated in a commercial environment. Operation of this equipment in a residential
area is likely to cause interference, at which case, the user, at his own expense, will be required to take
whatever measures may be required to correct the interference.

See the following page for additional information.

CANADA WARNING – This digital apparatus does not exceed the Class A limits for radio noise
emissions set out in the Radio Interference Regulations of the Canadian Department of Communications.
Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limits applicables aux
brouillage radioelectrique edicte par le ministere des Communications de Canada.

CE CONFORMANCE – This device complies with the requirements of the EEC Council Directives:
93/68/EEC (CE Marking); 73/23/EEC (Safety – low voltage directive); 89/336/EEC (electromagnetic
compatibility). Conformity is declared to those standards: EN50081-1, EN50082-1.

LITHIUM BATTERY CAUTION -- Danger of explosion if the internal battery is replaced
incorrectly. Replace only with same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer's instructions.

USE OF SHIELDED CABLING -- To conform to the CE requirements for High Frequency
radiation, shielded cables must be used for all audio and data connections. For analog and
digital connections, the cable shield MUST be connected to the XLR-type connector shell,
which is at chassis ground potential!

5

Manual Update Notification

Due to the dynamic nature of audio processing products, this manual and all future manuals will
be considered as 'preliminary documentation'.

Audio Processing is an art form that we take very seriously. As part of our dedication to this
science, we will continue to update both the product and its documentation based on continued
research, field experience and valued customer input.

We strongly encourage our customers to visit our Omnia website for product enhancement
announcements, software updates, manual updates, and customer care bulletins.

The following URL listing has been included for your update convenience:

Manual Updates

http://www.omniaaudio.com/support/manuals.htm

Installation Tips
Tech Bulletins and Papers

Tech Support – Software Upgrades

http://www.omniaaudio.com/tech/tips.htm

http://www.omniaaudio.com/tech/

http://www.omniaaudio.com/support/updates.htm

Thank you for selecting the incredible Omnia-3 Audio Processor. Your continued patronage and
support are appreciated.

Sincerely,

Team Omnia

6

SPECIFICATIONS

Note: All measurements made with the supplied “Proof of Perf” preset, which is available in the Preset Submenu.

System

Signal to Noise: The measured noise floor will depend upon the settings of the Input and
Output Gain controls. The Omnia’s noise floor is primarily governed by
the dynamic range of the 24-bit Crystal Semiconductor CS5360 A/D Converter,
which has a specified Dynamic Range of 105 dB. The dynamic range of
the Omnia 3 digital signal processing chain is 144 dB. Typical SNR using
the “Proof of Perf” preset is greater than –80dB referenced to 100%
modulation.

Distortion: No greater than 0.01% THD 20 Hz -- 20 kHz bandwidth.

FM Specifications (Omnia3-fm Turbo only)

Frequency Response: Complies with the standard 50 or 75 microsecond pre-emphasis curve
within ± 0.50 dB, 30 Hz to 15 kHz. The analog left/right outputs and
AES/EBU Digital outputs can be configured for flat or pre-emphasized
output.

Signal-to-Noise Ratio: > -80 dB de-emphasized, 20 Hz –- 15 kHz bandwidth, referenced to
100% modulation).

System Distortion: Less than 0.01% THD, 20 Hz – 7.5 kHz. Second harmonic distortion
above 7.5 kHz is not audible in the FM system

Stereo Separation: Greater than 65 dB, 20 Hz –- 15 kHz; 70 dB typical.

Crosstalk: > -70 dB, 20 Hz -- 15 kHz.

Composite Outputs: Configuration: Two electrically independent outputs. Software based

level adjustment.
Source Impedance: 10 ohms or 75 ohms, jumper-selectable. Single-ended
and floating over chassis ground.
Load Impedance: 50 ohms or greater load is suggested.
Output Level: 1.2 – 9.2 Vp-p, software adjustable.
Pilot Level: Adjustable from 6.0% to 12.0% in 0.1% steps.
Pilot Stability: 19 kHz, ± 0.5 Hz.
D/A Conversion: Burr Brown PCM1704, 24-bit sign-magnitude D/A
converter.
Signal-to-Noise Ratio: -85 dB typical, 75 µS de-emphasized, 15 kHz
bandwidth, referenced to 100% modulation).
Distortion: < 0.02% THD 20 Hz – 15 kHz bandwidth, 75 µS de-
emphasized, referenced to 100% modulation.
Stereo Separation: > 65 dB, 30 Hz – 15 kHz.
Linear Crosstalk: > -80 dB, main to sub or sub to main channel
(referenced to 100% modulation).
Non-linear Crosstalk: > -80 dB, main to sub or sub to main channel
(referenced to 100% modulation).
38 kHz Suppression: > 70 dB (referenced to 100% modulation).

7

76 kHz Suppression: > 80 dB (referenced to 100% modulation).
57 kHz (RDS/RBDS) Protection: better than -50 dB.

Connectors: Two EMI suppressed female BNC, floating over chassis
ground.
Maximum Load Capacitance: 5nF (at 10 ohms source impedance).
Maximum cable length: 100 feet/30 meters RG-58A/U.

Analog I/O

Analog Audio Input: Configuration: Left/Right Discrete Stereo. Electronically balanced, floating and

symmetrical.
Input impedance: 10k ohms resistive, electronically balanced.
Maximum Input Level: +24 dBu.
Nominal Input Level: +4 dBu when the Input Level Control is set to 0.0 dB.

A/D Conversion: Crystal Semiconductor CS5360, 24 bit 128x over-sampled delta sigma
converter with linear-phase anti-aliasing filter. Pre-ADC anti-alias filter,
with high-pass filter at <10 Hz.

Connectors: Two EMI-suppressed XLR female. Pin 1 chassis ground, and Pin 2 is “hot”.

Analog Audio Output: Configuration: Left/Right Discrete Stereo. Electronically balanced,

Source Impedance: 20 ohms, electronically balanced and floating.
Load Impedance: 600 ohms or greater, balanced or unbalanced.
Output Level (100% peak modulation): Adjustable from -2 dBu to +22
dBu peak, into 600 ohms or greater load, software-adjustable.

D/A Conversion: Crystal Semiconductor CS4390 24 bit, 128x over-sampled.

Connectors: Two, EMI-suppressed XLR-male. Pin 1 chassis ground, Pin 2 “Hot”.

Digital I/O

Digital Audio Input: Configuration: Stereo per AES/EBU standard, CS8420 Digital Audio
Transceiver with 24 bit resolution, software selection of stereo, mono
from left, mono from right or mono from sum. Automatically accepts
and locks to input sample rates between 12 and 50 kHz.

Connector: XLR-female, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3
transformer isolated, balanced, and floating – AES3 standard 110 ohm
impedance.

Digital Audio Output: Stereo per AES3 standard. Output can be configured in software for flat
or pre-emphasized response at 50 or 75 microseconds.
Output sample rate fixed at 48 kHz.
Connector: XLR-male, EMI-suppressed. Pin 1 chassis ground, pins 2
and 3 transformer isolated, balanced, and floating. Standard AES3
specified 110 ohm source impedance.
Digital Output Level: -22.0 to 0.0 dBFS software adjustable.

8

Remote Control

Remote Control
Methods: Configuration: Modem, Direct Serial, or 10/100BaseTX Ethernet.

Modem: Optional PCMCIA modem with pop-out X-jack connector or any
Hayes command set compatible external modem.
Direct Serial: Standard RS-232, no hardware handshaking employed.
Baud rates of 9,600, 19,200, and 57,600 supported.
TCP/IP Ethernet: Optional interface emulates a telnet session on port 23.
Connectors: RS-232 port, EMI-suppressed DB-25 female connector.
Industry standard EMI suppressed RJ-45 connector for Ethernet.

Remote Interface: Configuration: Eight (8) inputs, RS-232 level-compatible.
Software sensing of both 'go-high' and 'go-low' transitions.
Inputs are protected to +/- 15 VDC.
Connector: EMI suppressed DE-9 male.
Control: User-programmable using built-in Trigger Script feature in
Omnia-3 Remote Control software. Virtually any parameter of
the Omnia may be programmed to change through this interface feature.

General

Power Requirements: Voltage: 100-250 VAC, 50/60/440 Hz., < 55VA

Connector: EMI suppressed IEC male. Detachable 3-wire power cords supplied
for US and European use.

Internal Power Supply: Overvoltage and short circuit protected. Meets EN55022, EN55011
Level B Conducted Emissions. EN61000-4-2, -3, -4, -5, -6 level 3
immunity compliant. Full international safety approval. CE marked.

Environmental: Operating Temperature: 32 to 122 degrees F / 0 degrees to 50 degrees C

for all operating voltage ranges.

Humidity: 0-95% RH, non-condensing.

Dimensions: 19” wide x 3.5” high x 16.25” deep (48.3cm wide x 8.9 cm high x

41.3 cm deep) including connectors. Unit requires two EIA rack
spaces for proper mounting.

Shipping Weight: 26 lbs. / 11.8 kg

Telos/Omnia Research and Development is constantly working to improve the quality of our products.
Actual specifications are subject to change or improvement without notice.

9

Table of Contents

HAZARD / WARNING LABELS 4
Manual Update Notification 6
SPECIFICATIONS 7
Omnia-3 Quick-Start Setup Guide 11
Chapter-1: Installation 12

Pre-Installation Tasks.............................12

Installation & Connections ....................14

Powering Up ..........................................17

Chapter 2: The User Interface 18

Using the Jog Wheel ..............................18

Main Menu Orientation..........................19

User Interface Tutorial...........................19

User Interface Concepts.........................21

Bargraph Display Metering Screens ......22

Menu Descriptions.................................23

Chapter 3: Processing Overview 30

The Omnia-3 and Audio Processing......30

Chapter 4: Omnia-3fm Turbo 32

Processor Location.................................32

Omnia-3fm Turbo Connections .............33

Processing Presets..................................35

Omnia-3fm Turbo System Adjustments 35
FM Turbo Processing Worksheet 38
Chapter 5: Omnia-3am 39

Processor Location.................................39

Processing Presets..................................39

Omnia-3am System Adjustments ..........40

AM Processing Worksheet 43
Chapter 6: Omnia-3net/drm 44

Omnia-3net/drm Connections................44

Omnia-3net/drm System Adjustments...44

NET Processing Worksheet 45
Chapter 7: Editing Presets 46

Preset Editing Overview ........................46

The Processing Display..........................47

Parameter Editing...................................49

Saving, Renaming and Deleting Presets 53

Getting The Sound You Want................53

Chapter 8: Remote Control for FM Turbo 57

Software Installation ..............................57

Setting Up and Configuring Omnia

Remote Control......................................58

Using the Remote Control .....................64

Using a Terminal Program and Direct

Connection .............................................65

Trigger Interface and Script Editor........66

Chapter 9: Remote Control for v3.3.x and
Earlier 74

Software Installation ..............................75

Setting Up and Configuring Omnia

Remote Control......................................75

Using the Remote Control .....................81

Using a Terminal Program and Direct

Connection .............................................82

Trigger Interface and Script Editor........83

Chapter 10: Troubleshooting 92

Omnia Messages ....................................93

Diagnostic and Error Messages

Electrical and mechanical safety note! ..95

Narrowing down problems ....................96

Obtaining Service...................................97

WARRANTY 98

10

Omnia-3 Quick-Start Setup Guide

We know that you're probably in a hurry to get on the air with your new Omnia-3. If you have technical
expertise and previous knowledge of audio processor fundamentals, using the following Eight-Point Quick-Start
procedure will get you up and running as quickly as possible. Please refer to the remainder of the Operating
Guide for additional information.

Refer to the following drawing for the location of the various connectors associated with the installation:

Omnia-3 Rear Panel View

1. Insert the supplied PCMCIA memory card into the top card slot on the rear panel with the large Omnia label
facing up and the version number sticker facing down. DO NOT FORCE! Gently
until the black release button, to the right of the card, pops out about ½” [12.70 mm]. This indicates that the
card is properly inserted in the PCMCIA slot.

2. Install the Omnia-3 in th e equipment rack using at least two rack screws. If only two screws are used, they
MUST be in the bottom holes of the rack ears!

3. Connect AC power to the unit, and turn on power using the rear-panel power switch.

4. Connect the audio inpu ts that are appropriate for your installation and provide normal program audio to the
Omnia-3.

5. Navigate to the Input & Output menu by rotating the jog-wheel until Input & Output is highlighted and
then “click” (push in on the jog-wheel) to enter that menu. Navigate to Input Source, click, and select either
the Analog or AES/EBU input. Press the front panel push-button once to switch to the metering screen . If your
audio source is providing an audio feed you should see meter activity on the I/O and Process meters. Rotating
the jog-wheel switches between the I/O and Process bargraph screens. Turn it left for the I/O meters and right
for the Processing gain-reduction bargraphs.

6. Turn the Jog-Wheel to the left to display the I/O metering screen . Observe the input meters ( L In and R In)
and adjust the controls in the Input Levels menu until the input meters are peaking up to about -15dB (or a little
higher) with normal program audio. Each press of the front panel push-button will switch between the selected
metering screen and the menu screen where the input level controls are.

7. Connect the audio outputs that are appropriate for your installation.

8. If you are using the Analog or Digital XLR audio outputs, navigate to the Input & Output Menu and adjust
the controls in the Output Levels menu to the correct peak level for the equipment that follows the Omnia-3. If
you are using the Composite MPX Outputs (fm Turbo style only), navigate to the Stereo Generator Menu and
adjust the Composite 1 or Composite 2 output levels as appropriate for the STL transmitter or Exciter following
the Omnia-3.

You’re now ready to go on the air!

press the card into the slot

Note that the Omnia-3 is shipped with the “Rock” preset as the default. While leaning toward the competitive
side, it provides a rich and balanced sound - a good starting point for nearly every format. Remember that our
preset names do not necessarily mean that the preset is useful for only the formats to which the name refers.
Feel free to experiment!

11

Chapter-1: Installation

Even though we believe the Omnia-3 is the easiest processor to install in its class, please take a few minutes to
read through this chapter before proceeding with the installation.

Pre-Installation Tasks

This section offers common procedures for installing any version Omnia-3 processor. Additional model­specific information is given in the chapters on specific versions (Omnia-3fm Turbo in Chapter 4, Omnia-3am
in Chapter 5 and Omnia-3net/drm in Chapter 6).

Omnia-3 Components

By now, you’ve unpacked the shipping carton to at least gain access to this manual. Be sure to inspect the
Omnia-3 and shipping carton for any shipping damage, which must be reported to your carrier for any claims.

The Omnia-3 shipping box includes the following components:

• Omnia-3 processor (containing the DSP hardware)

• Omnia-3 PCMCIA card (holding the DSP software)

• Omnia-3 Operating Manual

• Warranty Registration Card (fill it out and fax it or return it)

• IEC Power Cord

PC Card and Optional Modem Installation

Before installing your Omnia-3, or even plugging in the power cord, make sure the Omnia-3 PC Memory Card
and optional Modem Card (if ordered) are installed into the correct card slots on the back panel and are fully
seated. Installation or removal of cards must be done with the power off unless directed otherwise.

The PC Memory Card is inserted into the top card slot with the larger Omnia label facing up, and the version
sticker facing down. The optional Modem Card is inserted into the bottom card slot below the Omnia PC Card.
Both the PC Card and the Modem Card are keyed to prevent improper insertion. DO NOT FORCE! Gently
press the cards into the slots until the black release button, to the right of th e card, pops out about 1/2" [12.70
mm]. This indicates the card is properly seated in the PCMCIA slot.

12

Important Note 1: The PC Card used in the Omnia-3 is not a generic PCMCIA cards that can be bought in any
local computer store. They are cards that are specified by Omnia specifically for this product. If you need a
backup card, please contact Omnia Customer Support to purchase an additional card. Inserting a card of
unknown origin risks damaging the Omni a or the card s, a n d doing so will void your warranty!

Important Note 2: If you wish to operate the Omnia-3 using a PCMCIA type modem, you must use the
optional modem card from Omnia. No other modem cards are approved for use at this time. We cannot assume
correct operation of any other modem card, nor can we provide support for it. Typically any external Hayes
compatible modem may be connected to the rear-panel serial port. See chapter 6 for more details on the Modem
and the Remote Control Software.

Note: The rear panel PCMCIA Memory Card must remain in the top slot unless you are prompted by the
system to remove it. Randomly removing the PC Card without system instruction may cause unpredictable
operation and PC Card data damage.

AC Environment

Since the Omnia-3 is microcomputer-based, it requires the same clean AC environment as any computer
system. Even though the unit has internal AC input transient suppression, we recommend that transient
suppressors/voltage regulation or an Uninterruptible Power Supply (UPS) be employed as well. This is
especially recommended when installing the processor at a transmitter site. (As is proper grounding) Heavy
transient demands on power lines, from normal switching to lightning strikes, have been known to wreak havoc
with data in computer systems. This is another reason we ask that you give your AC environment thorough
consideration before plugging in your un it. For more information on surge suppression and proper ground ing
techniques, please see the tech-talk paper “The Ins and Outs of Surge Suppression” on the Telos website here:

http://www.telos-systems.com/techtalk/surge.htm

13

Installation & Connections

As these instructions cover the entire Omnia-3 family of processors, there may be some connections listed that
are not used on your specific model. Refer to the individual model chapter for additional details specific to your
Omnia-3 version. Throughout this section reference is made to “software parameters.” These are part of the
User Interface, which is covered in Chapter 2.

Omnia-3 Rack Mounting Requirements

Rack Mounting

The Omnia-3 requires 2RU (3.50" [89 mm]) of rack space. Rack mount the unit using four rack screws. It is
preferred to leave at least one rack unit of empty space above the Omnia-3 to enhance ventilation and to prolong
component life. Install a 1RU (1.75") vented or solid panel to fill this space. It is recommended that another
1RU blank panel be installed below the unit for the same reason, if rack space is not at a premium.

Rear Panel Connections

Omnia-3 Back Panel Connections

AC Connection (IEC)

The Omnia-3 uses a universal power entry module with integral AC switch just above the IEC power cord
receptacle. It can operate on AC mains voltages from 100 to 240 VAC, 50/60 Hz since a self-adjusting
switching power supply is used. In the USA, plug the supplied AC power cord into the unit and then into an
isolated ground AC outlet. Outside of the USA you must obtain an appropriate local IEC power cord.

14

Audio Inputs (Female XLR)

Balanced XLR-type connectors are used to input both analog and AES-3 digital audio. Even though both analog
and digital cables can be connected, only one input can be set active. Input selection is done through the Input
Source software parameter in the Input & Output menu. The Analog input is the factory default selection.

The stereo analog inputs are designed for standard +4 dBu balanced signals. The digital AES-3 input accepts
any sampling rate between 32 and 50 kHz. No user adjustment is necessary since a sample rate converter is built
into the unit. Individual channel gain and level setting for both analog and digital is done using the Input &
Output menu’s software parameter settings.

A Note About Relative Phase: If the relative phase of your installation including the Omnia-3 differs from
your existing system, it could cause your announcer s to feel they sound “weird” in their headphones. If this
happens, then the relative phase of the processor is 180 degrees from what your air talent are used to. To
remedy this, you can reverse the polarity to both of the two analog inputs (is pin 2 or pin 3 hot!?), but it’s a lot
easier to accomplish this function by changing the Input Phase software parameter setting located under Input
Levels in the Input & Output menu.

Discrete Audio Outputs—Analog & Digital (Male XLR)

Individual Left and Right analog outputs are available on two male XLR jacks, as is a single stereo AES-3
output. The 48 kHz digital output is produced directly from the output of the final processing section. The
analog output is derived from a D/A converte r dri ven from the digital output.

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

Composite Outputs (BNC) – fm Turbo versions only

These two low impedance outputs (Composite 1 and Composite 2) are each capable of driving up to 50 feet of
coax cable. The output levels are individually adjustable between the outputs so the unit can operate as a
“composite DA” to drive a variety of equipment. The output levels and other stereo generator settings are set
through software parameters in the Stere o G enerator menu.

19 kHz Data Output (BNC) – fm Turbo versions only

This TTL-level 19 kHz square wave output can be used as the reference signal for any SCA generator that
operates at 57 kHz or other multiple of the 19 kHz pilot frequency. Using the 19 kHz cloc k from the Omnia-3
stereo generator makes it much easier to phase lock the SCA signal to the pilot frequency. This is extremely
helpful in eliminating intermodulation comp onents that migh t exist between the pilot an d SCA signal. For RDS
users, this feature is also very useful.

SCA Input (BNC) – fm Turbo versions only

Any SCA signal above 53 kHz can be added to the composite outputs of the Omnia-3 by routing the SCA signal
through the SCA INPUT connector. The SCA signal is mixed directly into both composite outputs. A high-pass
filter on the SCA input provides additional crosstalk protection from the SCA to the main channel composite
signal. The SCA modulation is controlled through software parameters in the Stereo Generator menu.

15

RS-232 Connection (DB-25F)

This connector serves two important purposes: It can be used for a local, bi-directional computer connection
with Omnia-3 Remote Control, or it can be used for troubleshooting and error code resolution. In the former
case, Omnia-3 Remote Control software is utilized. In the latter, any terminal emulation program can be used.
In either case, you must use a standard, straight-through serial cable (not a null modem cable) between the RS­232 connector and the serial port connector on the computer. Typically, a DB25 male to DB-9 or DB-25 female
cable will be used, with the DB-25 male end of the cable attached to the Omnia-3.

The Remote Control application is available as a free download from the www.omniaaudio.com
covered in detail in Chapter 8.

website and is

Interface Connection (DB-9M)

The 9-pin male Interface connector uses eight pins as “trigger” inputs with the ninth pin as the ground
reference. The trigger inputs can be used to dynamically alter the Omnia-3’s operational attributes in response
to logic signal transitions. The Omnia-3 responds uniquely on each trigger input to both go-high and go-low
transitions. With eight inputs, and two possible triggers (logic go-high and go-low), sixteen unique “trigger
scripts” can be written (using the Omnia-3 Remote software) to control the Omnia-3 in response to these trigger
input logic transitions. The Trigger Script Interface Editor is covered in detail in Chapter 8.

The Pinout of the Omnia-3 rear-panel DB-9 Interface connector is as follows:
PIN 1 activates Trigger Script 1 PIN 6 activates Trigger Script 2

PIN 2 activates Trigger Script 3 PIN 7 activates Trigger Script 4
PIN 3 activates Trigger Script 8 PIN 8 activates Trigger Script 7
PIN 4 activates Trigger Script 6 PIN 9 activates Trigger Script 5
PIN 5 is connected to ground

Ethernet Connection (Optional)

The Remote Control link for your Omnia-3 over 10BaseT and 100BaseT networks can be utilized if the
Ethernet Interface hardware option is installed. (Part # 2091-00013) Installation instructions are provided with
the hardware. The setup and operation of the Remote Control software application is covered in detail in
Chapters 8 and 9.

16

Powering Up

A

Press the “I” side of the rear panel power switch to turn on the unit. The processor is designed to be turned on
and left on. Press the “O” side of the switch to turn off the unit for servicing.

When the Omnia-3 is first turned on, there is a few seconds of delay as the system starts up. An operating
system start up screen is displayed. Under normal conditions it should appear as:

Load Algorithm...

After approximately ten seconds, audio will be present from the analog and composite MPX outputs. The
AES/EBU output also becomes usable at this time. However, full initialization of the software is not complete
for several more seconds. After a few seconds, the Main Menu display will appear:

OMNIA.FM3turbo

udio Processing

Input/Output
Stereo Generatorr

Preset: Rock 2:09PM

At this point, the Omnia-3 is fully operational. The next chapter covers its operation through the front-panel
user interface.

17

Chapter 2: The User Interface

Now that your Omnia-3 is rack-mounted, connected to a program audio source, and turned on, you’re ready to
learn how to operate it! This chapter covers the Graphical User Interface, your window into the Omnia-3
processor.

The user interface consists of a front panel-mounted jog-wheel with push-switch, a push-button and an LCD
screen. The LCD screen displays menus, parameter settings and bargraphs (Level Meters and Processing
activity). The push-button toggles between the two display modes: the menus/parameters mode and the
bargraph mode. The menus are used during initial setup and for adjusting the processing parameters. In normal
day-to-day operation, one of the bargraphs is typically displayed to dynamically indicate the real-time signal
processing.

Using the Jog Wheel

The main user control for the Omnia-3 is the large, easy to use jog wheel with its integral push-switch. We
believe that you will quickly become comfortable with how it works, and appreciate its simplicity.

Rotating the Jog-Wheel moves a highlighting bar up or down through menus and parameter choices. Pressing
the jog-wheel (called “clicking”) selects the highlighted menu item or parameter choice. When editing the
parameter values, rotating the jog-wheel adjusts the parameter’s value up (by rotating CW) or down (CCW).
Once the desired value is reached, clicking the jog-wheel saves the value and returns the display to the previous
menu or sub-menu.

The behavior of the Omnia-3's menu system is consistent across pages and is easy to learn. The following
procedure is used for all parameter selection and editing:

1. Use the jog-wheel to highlight a menu item or sub-menu item.

2. Click the jog-wheel to open up that item.

3. Once a parameter is displayed, highlight and click the name to open up the parameter value edit box.

4. Use the jog-wheel to adjust the value of the parameter.

5. Click to accept the value and return to the last sub-menu.

18

When the front panel is in bargraph mode, the jog-wheel is used to select between various pages of bargraphs

A

that can be displayed. Push the push-button located to the left of the jog-wheel to change to bargraph mode.
Rotating the jog wheel counter-clockwise moves left one page and rotating clockwise moves right. The pages
do not wrap around from beginning to end or vice-versa. Rotating the wheel CCW will always eventually bring
up the I/O meter page and remain there.

Main Menu Orientation

When the processor is first turned on, several start-up screens are displayed. After ten to fifteen seconds the
Omnia-3 Main Menu is displayed with a sliding menu bar along the right side of the screen to indicate your
position within the menu hierarchy. A multipurpose help line is located at the bo ttom of the d isplay.

OMNIA.FM3turbo

udio Processing

Input/Output
Stereo Generatorr

Preset: Rock 2:09PM

Note: After a time-out, the help line will cycle through: the current preset name, the status of dayparts, and the
day and date. The time is displayed at the right side.

The menu system has been designed to be intuitive and simple to use, with a minimum of sub-menu layers.
Most operating parameters are found less than three sub-menus deep. This allows multiple processing changes
to be made “on-the-fly” with relative ease. The complete system is managed through the four menu choices on
the Main Menu. They are: Audio Processing, Input & Output, Display and Utility. A fifth sub-menu, Stereo
Generator, is added for the Omnia-3fm Turbo style.

The Audio Processing menu item is shown highlighted in the Main Menu Items illustration. The highlighting is
controlled by the jog-wheel. Rotate the jog-wheel CW to step the highlighting down through the menu items.
When the desired menu item is reached, press the jog-wheel once (“click”) to select that item. If the item has
sub-menus (like Audio Processing), then the sub-menu choices will be displayed. If the menu item is a
parameter selection, then the parameter choices or a bargraph value indicator is displayed. Ro tating the jog­wheel steps through the choices and raises (when rotated CW) or lowers (when rotated CCW) the parameter
value. Click the jog-wheel to select the parameter.

When a sub-menu is displayed, the top menu item will always be the return arrow. Highlight the return arrow
and then “click” to move back to the next higher menu.

User Interface Tutorial

The following two exercises are a useful introduction to the user interface. They also show you how to select an
input source and set input levels, which are among th e first things that need to be done to set-up the processor.
Start from the top of the Main Menu (as displayed when the unit is first turned on).

The first exercise demonstrates how to make a parameter selection:

1. Rotate the jog-wheel to highlight Input & Output.

2. Select this menu item by “clicking” the jog-wheel (push once on the jog-wheel). The Input & Output

sub-menu is presented:

19

Input & Output

Input Levels
Output Levels

Go to additional

3. Rotate the jog-wheel CW to scroll down to highlight Input Source.

4. Click the jog-wheel to select Input Source. An expanded edit box appears with the word ANALOG

shown in large type (this is the default input selection).

5. Rotate the jog-wheel to alternate between the available parameter choices, in this case: ANALOG and
AES/EBU. Note that the choices do not “wrap around.” You must rotate the jog-wheel CCW to return
to a previous choice.

6. With ANALOG displayed, click the jog-wheel. The selection takes effect and the screen returns to the
sub-menu item (Input Source).

7. To exit the Input & Output menu and return to the Main Menu rotate the jog-wheel CCW until the

return arrow at the top of the menu is highlighted. Click on the return arrow to return to the Main
Menu.

The next exercise demonstrates how to adjust a parameter that uses a value:

1. From the Input & Output sub-menu, rotate the jog-wheel until Input Levels is highlighted.

2. Click the jog-wheel to select and display the Input Levels sub-menu. There are three menu items
displayed: Input Master, Right Trim and Input Phase.

3. The highlighted item is the Input Master parameter. Click to select.

4. An expanded edit box appears at the bottom of the display with a level bar displayed in the middle:

Edit Input Master setting

-4.0

+6.5

+0.6dB

(was -4.0)

5. Rotate the jog-wheel CW to increase the input gain in 0.1 dB steps. Rotate the jog-wheel CCW to
decrease the input gain. The current setting display updates as the jog-wheel is moved. Just below the
current setting is the previous setting display. “(was -4.0)” All parameters display the prev ious setting
below the current setting as soon as the jog-wheel is rotated. This allow s the parameter to be easily
returned to its previous setting.

Note: The Input Master control adjusts both the left and right channel levels simultaneously. If needed,
the relative level between the channels can be adju sted using the Righ t Trim control, which has a range of
–3 dB to +3 dB.

6. Adjust the input settings so that, with normal program audio, the L In and R In bargraphs in the I/O
metering screen (viewed by pressing the push-button and turning the jog-wheel to the left) show peak
indications hitting a bit higher than -15 dB (half to two-thirds of the way up).

7.

20

8. Once the desired gain is reached, click the jog-wheel to accept the value and to return to the sub-menu
item. The push-button will conveniently enable you to switch between the parameter adjustment and
the bargraph metering screens.

All of the Omnia-3’s software parameters are set in similar fashion through scrolling through menus and sub­menus to select which parameter to edit. The parameter choices or values are then selected by rotating the jog­wheel until the desired setting is displayed. Clicking the jog-wheel selects the parameter value and returns to the
menu or sub-menu item.

Note: Changing the parameter value affects the audio output in real time so that the changes can be auditioned
immediately.

User Interface Concepts

This section introduces you to several important concepts needed to understand and use the Omnia-3.

Presets

Each processor comes with processing presets designed for that style to cover most broadcasting formats or
netcasting applications. A preset contains the saved values for every parameter listed under the Audio
Processing menu for that style. When a preset is loaded, these values configure the Omnia-3’s processing.

The factory presets can be used as-is by loading them using Select Preset, or they can be used as a starting point
to tailor the processing for a specific requirement. Any of the presets parameters can be edited (using Edit
Parameters) to obtain the desired sound. The edited preset can then be saved to the PC Card as a User Preset
(using Save to Card as) and selected just like the factory presets. Editing presets is covered in detail in Chapter
7, Editing Presets

Presets can be backed up to your computer using the free Remote Control software available for download at

www.omniaaudio.com

. Full information about Remote Control is covered in Chapter 8.

System Parameters

System Parameters are any parameters that are not part of a processing preset. These include all settings in the
Input & Output and Stereo Generator menus as well as other system settings such as Dayparts and Trigger
Scripts. Such parameters are typically set once and left alone, and having them change when a new preset is
selected would be undesirable. These are stored in a battery-backed NVRAM chip on the motherboard. If an
event should occur that clears the NVRAM (such as a power outage combined with a dead battery etc.), the unit
restarts using the last saved set of System Parameters stored on the PC card. This means all Input & Output and
Stereo Generator settings are restored from the PC card, as well as other system settings such as any Dayparts
and Trigger Scripts. Also, the preset that was running when the system was saved to the card is stored there as
the default preset.

21

Important Note: You should save the System Parameters to the PC card after changing any System
Parameter or if you change your default processing preset.

If your current System Parameters were never backed up by saving them to the PC Card, the parameters
restored would be the factory defaults and the default preset would be the first factory preset in the preset list.

To save the System Parameters, navigate to the Utility Menu and click on System Attributes and then Save to
Card.

Also in the System Attributes menu are the options to Load Defaults (loads the factory defaults) and Load from
Card (loads previously saved parameters or those from another PC card).

Security

The Omnia-3 includes two security levels that permit “lockout” of the unit to prevent unauthorized personnel
from making adjustments. Normal mode allows read-only access to the Omnia-3 and its menu structures. An
Engineer mode allows full access to all controls. Additionally, the unit can be locked altogether, preventing
any access whatsoever. Default passwords supplied with the unit are “vito” (all lower case) for Normal mode
and “tomtom” (all lower case) for Engineer mode.

Trigger Scripts

The Omnia-3 Remote Control software (available as a free download from www.omniaaudio.com) contains a
special script editor that allows the programming of System Parameter changes that can be “triggered” by logic
state changes on the rear-panel DB-9 “Interface” connector.

Using Trigger Scripts, you can make the Omnia-3 do things with contact closures that would normally need to
be done either by manual intervention at the front panel, or via Omnia-3 remote control. There are 8 Trigger
Inputs available, and they respond to dry contact closures on the rear-panel “Interface” connector. Full
information about Trigger Scripts is covered in Chapter 8, Remote Control.

Dayparts

The audio processing can be automatically adjusted by dayparts. This permits different presets to be invoked
according to a schedule that you create. If there is no daypart selected for an interval of time, the system returns
to the default preset selected by the user before dayparting is enabled. Configuration of dayparts is covered in
detail later in this Chapter in the “Utility” sub-section of the “Menu Descriptions” section .

Bargraph Display Metering Screens

The bargraph screens are displayed by pressing the front panel push-button (located between the LCD and the
jog-wheel). This toggles between the two display modes: the menus/parameter mode and the bargraph meter
mode. Multiple screens are available in bargraph mode, and are selected by turning the jo g wheel. The first
screen can be reach by turning the wheel counter-clockwise until the screen no longer changes. Each screen is
titled in the lower right-hand corner as a navigation aid.

The screens available depend on the style of Omnia-3. All styles have the first I/O screen that shows the input
and output levels. On Omnia-3am and net units there is one combined “Process” bargraph screen that shows the
wideband AGC bargraph and three limiter bargraphs (four on the Omnia-3am). The Omnia-3fm Turbo style has
two processing bargraph screens -- one for the wideband and multi-band AGC bargraphs (labeled “AGC”) and
the other for the multi-band limiter bargraphs (labeled “LIM”).

22

I/O Levels Display

Both input and output levels are displayed in real time. The output bargraphs only indicate the output levels of
the digital and analog XLR outputs and do not indicate composite MPX levels on Omnia-3fm Turbo units. The
bargraphs indicate peak levels below 0 dBFS, which is the absolute maximum level of the internal digital signal
processing. In normal operation with normal program audio, signal level peaks should regularly indicate just
above -15 dBFS and never hit 0 dBFS.

Process Display

The process bargraphs indicate the amount of processing (gain-reduction) of the AGC and Limiter bands in the
Omnia-3. Maximum indicated gain-reduction is 25 dB, which occurs at the bottom of the screen. The bargraphs
also have a GATED indication as determined by the Gate Thresh or Hold Thresh setting for that band.

Note: It is normal for the wideband AGC to “recover” to a platform of 10 dB of gain reduction if it is gated
over a long period of time. Refer to Chapter 7, Editing Presets for more information on interpreting and using
the Processing bargraph display.

Menu Descriptions

This section gives an overview of the menus, sub-menus and parameters. The next chapter (Chapter 3,
Processing Overview) presents an overview of the Omnia-3 processing. Chapter 7, Editing Presets, gives more
information on editing parameters including procedures for editing the factory presets to create your own
custom presets.

Main Menu

This menu has four items in Omnia-3am and Omnia-3net/drm: Audio Processing, Input & Output, Display and
Utility. A fifth item: Stereo Generator is added on the Omnia-3fm Turbo style.

Audio Processing

It is from the Audio Processing sub-menu items—Select Preset and Edit Parameters, that the unit’s processing
power is unleashed. Omnia-3 is equipped with numerous presets that can be selected to instantly configure the
processing. The presets are selected using Select Preset. Selecting Edit Parameters opens up the parameter­editing sub-menu, which allows any processing parameter to be “fine-tuned” to tailor your processing. Save to
Card as allows the edited preset to be saved to the PC Card as a new User Preset.

Input & Output

This sub-menu provides the Input Levels and Output Levels adjustments for the discrete left and right inputs
and outputs, selection of Input Source (Analog or AES-3), Preemphasis and Deemphasis options (Omnia-3fm
Turbo style only) and Mono Mode options. These are generally “set once” selections or parameters, adjusted
during installation and then generally left alone.

23

Stereo Generator (Omnia-3fm Turbo only)

This sub-menu has the adjustments for the SCA Level, Composite 1 & Composite 2 output levels, Pilot Level,
Pilot Phase and Separation.

Display

This sub-menu has the adjustments for the LCD screen (Contrast and Backlight).

Utility

Numerous maintenance and utility functions are nested within this sub-menu. You can find the currently
running system software versions in the About sub-menu. The housekeeping of Preset and System Attributes
data, along with PC Card Maintenance is provided here. Enabling Dayparts as well as setting Security features
to prevent tampering by unauthorized personnel are also provided under this sub-menu. Finally, the Date, Time
and the RS-232 serial Ctrl Port Baud rate can be set here.

Audio Processing

This sub-menu is used to make changes that affect the on-air sound. It has five items: Select Preset, Edit
Parameters, Undo Edit, Save to Card, Save to Card as. The Omnia-3am style also has an Editing Mode item.

Select Preset

This opens up a selection box to select a factory preset or a user preset that was previously saved to the PC
Card. The name of the preset that is cur rently running is displayed. Use the jog -wheel to scroll through the list
to find a preset to load. Once the desired preset name is displayed, click the jog-wheel to immediately load that
preset into the unit’s memory. This also returns you to the Select Preset menu item.

Note that once you move the jog-wheel to display another preset name, a message below the preset name
indicates the previous selection, i.e., “(was Jazz-6AM)” will be shown if that was the currently running preset.
This serves as a reminder, so you can reselect that preset in case you change your mind about changing presets,
since there is no way to “cancel” selecting a new preset to load.

A thermometer bar along the left side of the window indicates where you are in the list of presets. All User
Presets are added onto the end of the list, so they will be found when the bar is toward the bottom of the
thermometer.

Editing Parameters

Here you have detailed control of all processing parameters. Such parameters as attack/release times, gate
thresholds, multiband EQ settings and clipping drive are available through a graphical block diagram based
interface. The first blocks name, “AGC Wideband” flashes, indicating that it’s the current parameter. To edit
the AGC Wideband parameters, click the jog-wheel. A list of the parameters relevant to that part of the
processing algorithm is shown (in this case; Phase Rotator, Wideband AGC, etc.). To edit another block’s
parameters, rotate the jog-wheel until the desired block name is flashing and then click the jog-wheel. Detailed
editing is covered in more detail in Chapter 7, Editing Presets.

Undo Edit

Restores the preset state from before the last edit operation.

Save to Card

Saves the current parameters to the PC Card, overwriting any previous settings saved under the current Preset
name. This function cannot be used with factory presets, since they cannot be changed. If you have made
changes to a factory preset and wish to save them, use Save to Card as to save the changes under a new name.

24

Save to Card As

Opens up a Preset Naming dialog box to allow the Preset name to be changed before saving the preset to the PC
Card. Preset names can be up to 12 characters in length. Click the jog-wheel to select a highlighted character to
be changed. Then rotate the jog-wheel to step through all the possible characters. Once the desired character is
displayed, click the jog-wheel to select that character. The highlighting moves to the next character. To insert a
new character between others, select the character after the insertion point, then change it to the “ins” symbol.
To delete an existing character select it, then change it to the “del” character. When the last character is
reached, rotate the jog-wheel to highlight “Save”. Click to save the preset. Highlight “Cancel” to cancel the
operation.

Input & Output

This sub-menu has four main items common to all styles: Input Levels, Output Levels, Input Source and Mono
Mode, plus four additional items (Preemphasis, Deemphasis, BS-412 ITU Limiter, and BS-412 Limiter
Power) in the fm Turbo style, one additional item (LPF Frequency) in the Omnia-3net/drm style, and five

additional items (Asym Mod, Tilt EQ, Tilt Frequency, LPF Frequency and HP Filter) in the Omnia-3am style.
Common items will be covered here while items specific to a style will be covered in the chapter on that style.

Input Levels

Tthree parameters are located under this sub-menu item: Input Master, Right Trim, and Input Phase.
Input Master & Right Trim: These level controls are active when either Analog input or AES/EBU input is

selected since their adjustments take place in the digital domain. The factory default setting is 0.0, which
corresponds to a nominal average program audio input level of +4 dBu. To ch ange input level, rotate the jog­wheel to adjust the level in 0.1 dB steps. The Input Master affects both the left and right inputs simultaneously,
while the Right Trim only affects the right channel over a +/- 3 dB range. Use the level bargraphs to make this
adjustment so that signal peaks read a bit higher than -15 dB with normal program audio. 0 dB corresponds to 0
dBFS (decibels below Full Scale digital, i.e. the digital clip point) so be sure that peaks do not reach 0 dB
regularly or distortion will result.

Input Phase: If the relative phase relationship of the Omnia-3 is different from your existing system, it could
cause your announcers to think they sound “weird” when monitoring through the system using their
headphones. If this happens, the relative phase of the Omnia-3 is 180 degrees different from what your
announcers are used to. To remedy this, you can reverse the polarity with this menu selection. This is the same
as but much more convenient than swapping pins 2 & 3 on both L & R input XLR connectors!

Output Levels

Two parameters are located under this sub-menu item: Output Master and Right Trim.
Adjustment of the left/right audio levels is done in the same manner as setting the input levels. Since these

settings take place before the D/A converter, the settings affect both digital (AES/EBU) and analog XLR
outputs. In Omnia-3fm Turbo units, the composite MPX outputs are not affected by these controls.

Note: Both the analog and digital AES/EBU outputs are active at the same time. Connections can be made
simultaneously to the analog and digital outputs, as well as the composite ou tputs on the Omnia-3fm Turbo.

Input Source

Selects whether the input is supplied by the Analog or AES/EBU digital input.

Mono Mode

This sub-menu has five items: Stereo, Mono L, Mono R, Mono L+R and Swap.

25

The Stereo selection indicates that the processor will process a 2-chan nel stereo signal. Please note that the tw o
channels cannot be separate un-related signals since the processing is stereo strapped.

Mono L: The signal at the left input is fed to both the left and right channe ls of the processing.
Mono R: The signal at the Right input is fed to both the left and right channels of the processing.
Mono L+R: A sum of the two input channels is fed to both left and right channels of the processing.
Swap is similar to Stereo but the L & R channels are reversed. (swapped)

Pre-Emphasis (Omnia-3fm Turbo only)

See Omnia-3fm Turbo System Adjustments in chapter 4 for full details.

De-Emphasis (Omnia-3fm Turbo only)

See Omnia-3fm Turbo System Adjustments in chapter 4 for full details.

BS-412 Power Limiter (Omnia-3fm Turbo only)

See Omnia-3fm Turbo System Adjustments in chapter 4 for full details.

BS-412 Average Power (Omnia-3fm Turbo only)

See Omnia-3fm Turbo System Adjustments in chapter 4 for full details.

Asymmetrical Modulation (Omnia-3am only)

See Omnia-3am System Adjustments in Chapter 5 for full details.

Tilt EQ (Omnia-3am only)

See Omnia-3am System Adjustments in Chapter 5 for full details.

Tilt Frequency (Omnia-3am only)

See Omnia-3am System Adjustments in Chapter 5 for full details.

LPF Frequency (Omnia-3am only)

See Omnia-3am System Adjustments in Chapter 5 for full details.

LPF Frequency (Omnia-3net/drm only)

See Omnia-3net/drm System Adjustments in Chapter 6 for full details.

Stereo Generator (Omnia-3fm Turbo only)

Six parameters are set under this sub-menu: SCA Level, Composite 1, Composite 2, Pilot Level, Phase Adjust,
and Separation.

See Omnia-3fm Turbo System Adjustments in chapter 4 for full details.

Display

Two parameters are set under this sub-menu: Contrast and Backlight.
Contrast adjusts the brightness difference between the lightest and darkest segments in the front panel display.

Note that if this setting is mis-adjusted the display will “disappear.”
Backlight adjusts the LCD’s backlight to compensate for room brightness.

26

Utility

There are nine parameters or sub-menus reached through this menu item: About, Preset, System Attributes,
Card Maintenance, Daypart Table, Security, Set Time, Set Date and Control Port Baud.

About

The first thing displayed when you click on About is the Omnia factory telephone number in Cleveland! To
display the currently running software versions, click OK. The Style and Release version will be displayed.
Click OK again and the Bios, display and Loadset versions are displayed. Clicking OK again brings up the
copyright screen and one more click returns you to the Utility menu.

Preset

This sub-menu has two parameters: Delete and Rename. Select Delete to permanently delete a User Preset
from the PC Card. A selection box will be displayed allowing you to choose a preset for d eletion. Once a
choice is made, a confirmation box is displayed. The preset will not be deleted until “OK” is selected from the
confirmation box. Select Rename to change the name of an existing User Preset. A selection box will be
displayed allowing you to choose a preset to be renamed. Once a choice is made, a naming box is displayed to
enter the new name for the preset. This works as described above in “Audio Processing”: “Save to Card as”.

System Attributes

There are three parameters under this sub-menu item: Load Defaults, Load Fro m Card and Save to Card.
Load Defaults: Reloads all of the factory default system parameters into the system. System parameters are

anything that is not saved with the processing preset, such as input and output levels, and RS-232 baud rate.
User presets saved to the PC card are not affected but the default preset is reset to the first factory preset shown
in the list.

Load From Card: Loads previously saved system parameters from the PC Card.
Save to Card: Saves system parameters to the PC card. This makes a “copy” of the system configuration that

normally resides in the nonvolatile RAM within the Omnia-3, storing it on the PC Card. This simp lifies getting
back to a previous state after numerous system adjustments have been made, but you want to return.

Card Maintenance

Erase User Data: Choose this selection when you want to erase all user information on the PC Card, including
user presets, saved system settings, dayparts, and trigger scripts. When this function is selected, the PC Card is
restored to the initial factory condition, and only the factory presets are available. Before this function is
executed, a pop-up screen will ask for confirmation. Follow the instructions presented on the screen to confirm
erasure of the card.

Daypart Table

Sub-menus in this menu allow viewing and setup of dayparts. These sub-menus are:

Show All: Displays all of the currently defined dayparts through a series of dialog boxes.
Add Part: Permits the creation of dayparts. Using various screens, you can select the start day and time, the end

time, and preset. The system will warn the user if the daypart being added ov erlaps one of the dayparts already
defined.

Note: You can cancel the Add Part operation at any time by selecting the Cancel option on any of the daypart
Add Part screens.

Modify Part: Permits editing of dayparts already created. The system prompts the user to select one of the
currently defined dayparts, and then displays the same sequence that the user sees when doing an Add Part,

27

allowing you to edit the daypart. The user can then change the start day and time, end time, or preset associated
with the daypart being edited.

Remove Part: Permits removal of a daypart. The system prompts the user to select one of the currently defined
dayparts, and then prompts the user with a Continue To Delete? dialog with a Yes/No option. If the user selects

Yes, the selected daypart is deleted.
Load from Card: Retrieves daypart data stored on the PCMCIA card. This operation will restore any dayparts

that were previously saved to the card with the Save to Card operation, described below.
Save to Card: Backs up daypart information onto the PCMCIA card (for safety and sharing with others). It

saves all of the currently defined dayparts and the daypart state to the Omnia-3 PC card. These settings can be
loaded later by selecting the Load from Card option.

Current State [Enabled/Disabled]: Activates or deactivates the use of created dayparts. If Enabled, then the
system will automatically change presets as specified by any of the dayparts defined. If Disabled, then the
system will not use any of the dayparts defined.

Security

This menu allows configuration of all Omnia security features, such as password access, screen locking, and
remote access control. There are six sub-menus: Lock Unit, Login, Lock Password, Engineer Password,

Enable Remote and Disable Remote.
Lock Unit: Immediately locks the front panel controls and display. A dialog box is presented for password

entry to unlock the unit. Either the normal mode or engineer mode password can be used to unlock the unit.

Login: Permits access at one of two security levels (Normal or Engineer), using the appropriate password.:
Normal mode: vito (all lower case)

Engineer mode: to mtom (all lower case)

Lock Password: Allows changing the password for “Normal” access. This really should be called “Normal
Password”, but our software engineers wanted to include something to keep the users on their toes. This can be
performed either from “Normal” or “Engineer” security levels.

Engineer Password: Allows changing the password for “Engineer” access. Can be performed only from the
“Engineer” security level.

To change a password, use the standard click and turn of the jog-wheel to select the character position you wish
to change, and to select the character for that position.

After choosing a new password, continue rotating the jo g-wheel un til OK is highlighted. Push on the jog-wheel.
The password is now saved. If you wish to cancel this operation, just scroll onto the Cancel box and press the
jog-wheel. The operation is canceled.

Caution: Do not attempt to assign the same password to both security levels! You will lock yourself out
permanently!

Enable Remote: Allows remote control access to individual system parameters previously inhibited by the
Disable Remote command (see below). In other words, you can selectively cancel individual parameters that

were disabled for remote access. A list of parameters that have been disabled (through the Disable Remote
menu) for remote users is displayed. When a parameter is selected, it becomes available to “Engineer”
password users to edit through the remote software. Selecting Exit (None on am and net styles) exits the
Enable Remote screen without changing the current settings.

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Disable Remote: Allows the user to restrict access to a list of system parameters so that remote users won’t be
able to change the selected parameters. When the Disable Remote option is selected, a list of the system
parameters that are editable through the remote is displayed. When a parameter is selected, it is no longer
editable through the remote command interpreter. Selecting Exit (None on am and net styles) exits the Disable

Remote screen without disabling any parameters. To restore a parameter so that remote users can edit it, use the
Enable Remote option.

Set Time

Sets the current time for the unit. This must be performed before dayparts can be used. The time is set using the
familiar “turn and push” action of the jog wheel.

Note: The time can be synchronized to “:00” seconds by pressing the jog wheel in synchronization with the
seconds indicator of an external clock. To maintain accurate dayparting, periodically reset the internal clock to
your external reference.

Note: An additional menu will prompt you to set the unit to Daylight Saving or Standard time.

Set Date

Sets the current date. This must be performed before dayparts can be used. The date is set using the familiar
“turn and push” action of the jog wheel.

Control Port Baud

This option sets the RS-232 serial communications port baud rate. The default rate is 19200 bps.

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Chapter 3: Processing Overview

This chapter presents an overview of the processor using the block diagram from the Omnia-3fm Turbo to
provide a guide to the various processing sections. Not all processing sections discussed in this section are
found in each style. Refer to the chapter on your specific style for additional processing information including a
style-specific block diagram and a Parameter Worksheet.

Note: More detailed technical information about the audio processing employed in Omnia-3 can be found in the
Technical Papers section on the Omnia web site (www.omniaaudio.com).

The Omnia-3 and Audio Processing

There are thirteen possible processing blocks depending on which style of Omnia-3 is being discussed.
Common to all styles are an input AGC circuit for initial level control, bass and warmth EQ adjustment
sections, a multiband crossover section, a multiband limiter, a mixer circuit and a final limiter at the output. The
following block diagram presents the order of these processing blocks as used in the Omnia-3fm Turbo.

Wideband AGC: A very flexible wideband leveler section to provide transparent and smooth control of the
input program. This is achieved through two significant innovations: a du al referenced gate and an intelligent
“makeup” gain algorithm. The dual gate reference is a unique process that references the input dynamics to a
“rolling” reference level.

A user-adjustable Make-Up Gain feature uses an algorithm incorporating a hidden control signal that knows
when a sustained softer portion of progr am is occurring. It then “fills in” the softer section so that the average
level is increased. This allows the overall AGC function to operate with a slower time constant, yielding lower
intermodulation distortion without losing loudness in the softer passages.

As an example, with classical music, the orchestra might be playing along at a fairly robust level, then enter into
a quiet passage. A conventional AGC would hold the softer passage down until it was able to slowly recover,
keeping the soft passage much too quiet! With Omnia-3’s makeup gain function, the hidden, faster time
constant will allow a quick recovery, but only during the softer passage. As soon as the orchestra starts to play
louder, the “makeup” time constant yields control to the primary AGC circuit, hence returning gain to the
previous platform level. This sophisticati on bet t e r prese rves the dynamic integrity of the signal.

Typically the wideband AGC should be adjusted to give 10-12 dB of gain reduction on moderately loud
passages.

A built-in phase rotator ensures symmetrical clipping of positive and negative peaks. But, for a more musically
transparent sound (or if phase rotation is built-in to your mic processing ) this feature can be defeated.

A third-order (18dB/Octave) high pass filter with five selectable cuto ff frequencies from 60 Hz down to 20 Hz
allows removal of subsonic frequencies that may cause problems in processing and further along the airchain.

Bass EQ: For those who demand thunderous bass, the Omnia-3’s got it! Up to 12 dB of “thunder” can be added
to shake your listener’s walls! This is not some simple bass EQ, but rather a sophisticated concept that takes
into consideration the time alignment of the low frequencies as they pass through the entire system. This allows

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