Omnia Audio Omnia-5EX HD + FM Operating Manual

Omnia-5

EX

HD + FM

Broadcast Audio Processor

Installation and Operation Manual

Version 1.1e / April 2004

Applicable to v5.0.1 FM Release Software and Higher

A Telos Company

Omnia ● 2101 Superior Avenue Cleveland, Ohio 44114 USA

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

Omnia Europe ● Johannistrabe 6 D-85354 Freising Germany

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

www.omniaaudio.com

February, 2004

Greetings!

It’s with great pleasure to offer you our latest audio processor…Omnia-5EX! First and foremost, I must share my
gratitude as well. This new addition, continues the evolution of Omnia processing. The worldwide acceptance of our
product line has been quite humbling, to say the least. As I write this, our processors are now deployed by so many
leading broadcasters throughout the world that when looking at the list, I am overwhelmed by the recognition that my
(originally small) project to improve the sound of radio has gathered. So, it’s to you I say…Thank You!

1986 seems like just a short time ago! It was that year, in the engineering shop at Z-100, (WHTZ-FM) New York City
that our first product was born…The Vigilante FM Limiter. Now, 16 years later, along with an incredibly talented team
of fellow broadcasters and engineers, we offer you a feature rich, and sonically powerful tool in Omnia-5EX! This
processor is not just Frank anymore. It’s a complex effort from a tremendous team that has had only one goal in
mind…to raise the bar, yet again, and present you with our best effort possible.

I don't have enough space here to thank each and every one of the Telos/Omnia worldwide team members who have
contributed to this product in so many important ways. All I can say is that we would not be where we are without the
heroic and brilliant efforts from all of you working together. It’s our goal to set the standard by which all others will be
judged. The rules have changed, and Omnia processing is the reason why! What was once a truly small company
consisting of only my cat Vito and myself has now expanded to the point of having the best talent in every area of
product design, engineering, and marketing. (Not to mention, we now have the vital assistance of three cats…Omnia,
Zephyr, and Mocha.)

If I may say so, our pool of engineers for DSP development and software design is probably the finest in the radio
industry. My partner in crime, Steve Church, brought DSP into the broadcasting field in the mid-1980’s and we’ve
been strengthening our abilities ever since. Sharing Telos’ ingenuity for DSP design has been tremendously beneficial
to our work on Omnia. If you thought the original Omnia made noise on the dial, all I can say is “look out!” It’s like
one of the top-of-the hour station ID’s Scott Shannon used to jam on Z-100…”Lock It In And Rip The Knob Off!”
That's the kind of power and capability Omnia-5EX delivers!

As HD-Radio evolves, it is worth mentioning that our organization Telos and Omnia were involved behind the scenes
with the IBOC developers. Our extensive background in both dynamics processing and audio codecs assisted iBiquity
with development of their system. We were some of those involved to help them understand the need for a better codec
for the AM system, which they have implemented. As a small reminder, it was the efforts of our Steve Church who
introduced the USA to MP3, which has now evolved into aac. Modestly speaking, no other processing developer has
the synergy of being on the leading edge of coding and dynamics.

Before signing off, I would be remiss not to mention one individual though.…Jeff Keith, the leader of Team Omnia.
Jeff is quite well known in his own right as an audio processing guru! His years of radio station experience and vast
processing knowledge have dominated many a radio market, and now his efforts are an added benefit to Omnia-5EX.
His creativity, passion and commitment to our success has helped all the various talented (and sometimes chaotic) crew
unite in a common goal. To build a processor so great, it would surpass even my high expectations. Jeff, you and your
team have succeeded! Thus, I dedicate Omnia-5EX to you!

Not only do you have in your possession the best sounding audio processor available, you also have the full support of
our organization. If you have something to say, we’re here to listen. We’ve been fortunate through the past, that people
like you have taken the time to offer us valuable feedback and review of our endeavors. You can now see the result of
that, as you are now rewarded with the next step forward!

Without further adieu, it’s time for us to jam! So, as my buddy Scott Shannon would often say to me, “Frank-o, Let’s

Crank It Up Man!”

Here’s to Dial Dominance,

Frank Foti

Omnia-5EX Use and Operation Manual – V: 1.1

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S A F E T Y I N S T R U C T I O N S

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
operations 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 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 connects to 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 supply 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 short out parts that

could result in a fire or electric shock. Never spill liquid
of any kind into 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
recommendations.

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 of the product to
qualified service personnel.

18. Damage Requiring Service. Unplug this product from
the AC wall outlet and refer servicing to qualified
service personnel under the following conditions:

• When the AC plug is damaged.

• If liquid has been spilled or objects have fallen into the

equipment.

• If the product has been exposed to rain or moisture.

• If the product does not operate normally (following

operating instructions).

• If the product has been dropped or damaged in any
way.

• 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 safe operating
condition.

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

Omnia-5EX Use and Operation Manual – V: 1.1

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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.

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.

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.

sufficient magnitude to constitute a

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

risk of electric shock.

Omnia-5EX Use and Operation Manual – V: 1.1

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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!

Omnia-5EX Use and Operation Manual – V: 1.1

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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/manuals.htm

Installation Tips

Tech Bulletins and Papers

Tech Support – Software Upgrades

Warranty

Thank you for selecting the incredible Omnia-5EX Audio Processor. Your continued patronage and support are
appreciated.

Sincerely,

Team Omnia

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

http://www.omniaaudio.com/techinfo/default.htm

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

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

Omnia-5EX Use and Operation Manual – V: 1.1

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Omnia-5EX Performance Specifications

As of November, 2003 – Version 5.0.0 Software

Note: All measurements made with the supplied “FACT TEST2” 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 5'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 5 digital signal processing chain is 144 dB. Typical SNR using
the “FactTest2” preset is greater than –80dB referenced to 100%
modulation.

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

Conventional FM Specifications (FM Analog)
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 Ranges:
Low Range: 0.66 to 5.02 V P-P, High Range: 1.45 to 11.02 V P-P,
software selectable.
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.

Omnia-5EX Use and Operation Manual – V: 1.1

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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).
76 kHz Suppression: > 80 dB (referenced to 100% modulation).
Pilot Protection: > -65 dB relative to 9% pilot injection, ± 1 kHz.
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.

HD Radio Specifications (DAB)
Frequency Response: Within ± 0.50 dB, 30 Hz to 20 kHz.
Distortion: No greater than 0.01% THD 20 Hz – 20 kHz bandwidth.
Signal-to-Noise Ratio: > -100 dB, 20 Hz –- 20 kHz bandwidth, referenced to 0dBfs
Stereo Separation: Greater than 95 dB, 20 Hz –- 20 kHz; 85 dB typical.

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: A 13dBu input signal nets a –12dBFS input meter
reading when the Input Gain Control is set to 0.0 dB. A 1dBu input signal
nets a -12dBFS input meter reading when the Input Gain Control is set to
+12 dB.

(Note: When the Input Gain and Master Drive controls are set to 0.0 dB,

a +13dBu input signal results in an input level of –12dBFS, and a
Wideband AGC gain reduction of –15dB.

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 -6 dBu to +24
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”.

Omnia-5EX Use and Operation Manual – V: 1.1

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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 8 and 108 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
#1: Stereo per AES3 standard. Output can be configured in software for flat

or pre-emphasized response at 50 or 75 microseconds.
Digital Sample Rates: Output sample rates software selectable for
32kHz, 44.1kHz, 48kHz, and 96 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.

Digital Audio Output
#2: Stereo per AES3 standard. Output can be configured in software for flat

or pre-emphasized response at 50 or 75 microseconds.
Digital Sample Rates: Output sample rates hardware jumper selectable for
32kHz, 44.1kHz, 48kHz, or 96 kHz, or its rate slaved to AES #1.

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.

Digital Sync Input: External Sync: Output sample rate can be synchronized to the signal

present on the AES/EBU input, or to an AES3 signal applied to the Ext.
Sync input connector. (Does not accept Word Clock inputs)
External Sync Range: Accepts sample rates from 32kHz to 96 kHz.
Used for synchronization of the Digital Output signal to an external
reference. Automatically accepts sample rates between 32 and 96 kHz.
Connector: XLR-female, EMI-suppressed. Pin 1 chassis ground, Pin 2-3
transformer isolated, balanced, and floating. Standard AES3 specified
balanced 110-ohm input impedance.

Note: If AES Output #2 is slaved to AES Output #1 (hardware jumper) and
External Sync is selected for AES #1, then AES Output #2 becomes slaved to
the sample rate of the Sync input for AES Output #1.

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: 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.

Omnia-5EX Use and Operation Manual – V: 1.1

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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 5 Remote Control software. Virtually any parameter of
the Omnia 5 may be programmed to change through this interface
feature.

Power Requirements: Voltage: 100-250 VAC, 50/60/440 Hz., < 75VA

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 5.25” high x 16” deep (48.26cm wide x 13.335 cm high x

40.64 cm deep) including connectors. Unit requires three EIA rack
spaces for proper mounting.

Shipping Weight: 35 lbs. / 15.876 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.

Omnia-5EX Use and Operation Manual – V: 1.1

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Warranty

This Warranty covers “the Products,” which are defined as the various audio equipment, parts, software
and accessories manufactured, sold and/or distributed by TLS Corp., d/b/a Omnia (hereinafter
“Omnia”).

With the exception of software-only items, the Products are warranted to be free from defects in material
and workmanship for a period of two years from the date of receipt by the end-user. Software-only items
are warranted to be free from defects in material and workmanship for a period of 90 days from the date
of receipt by the end-user.

This warranty is void if the Products are subject to Acts of God, including (without limitation) lightning;
improper installation or misuse, including (without limitation) the failure to use telephone and power
line surge protection devices; accident; neglect or damage.

EXCEPT FOR THE ABOVE-STATED WARRANTY, OMNIA MAKES NO WARRANTIES, EXPRESS OR
IMPLIED (INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE).

In no event will Omnia, its employees, agents or authorized dealers be liable for incidental or
consequential damages, or for loss, damage, or expense directly or indirectly arising from the
use of any of the Products or the inability to use any of the Products either separately or in combination
with other equipment or materials, or from any other cause.

In order to invoke this Warranty, notice of a warranty claim must be received by Omnia within the
above-stated warranty period and warranty coverage must be authorized by Omnia. If Omnia authorizes
the performance of warranty service, the defective Product must be delivered, shipping prepaid, to:
Omnia, 2101 Superior Avenue, Cleveland, Ohio 44114.

Omnia, at its option will either repair or replace the Products and such action shall be the full extent of
Omnia’s obligation under this Warranty. After the Products are repaired or replaced Omnia will return
them to the party that sent the Products, and Omnia will pay for the cost of shipping.

Omnia’s authorized dealers are not authorized to assume for Omnia any additional obligations or
liabilities in connection with the dealers’ sale of the Products.

Omnia products are to be used with registered protective interface devices which satisfy regulatory
requirements in their country of use.

Omnia-5EX Use and Operation Manual – V: 1.1

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TABLE OF CONTENTS

Greetings 2
Safety Instructions 3
Hazard / Warning Labels 4
Notices 6
Specifications 7
Warranty 11
QuickStart Setup Guide 15

1 – INSTALLATION

Omnia-5EX Pre-installation Tasks 16

PC Card and Modem Installation 16
AC Environment Considerations 17
Installation and Connections 18

Rack Mounting 18
AC Connection 18
Audio Inputs 19
Audio Outputs 19
Composite Outputs 19
19 KHz Sync Output 20
SCA Input 20
Ethernet Connection 20
RS-232 Connection 20
Interface Connection 21
Powering Up 22

2 – THE OMNIA-5 USER
INTERFACE

User Interface Introduction 23
Using the Jog Wheel 24

Level Meters and Processing Bargraphs 25

Audio I/O Level Display 25
Processing Display 25

Main Menu Display 26

Home Icon 26
“X” Close Window Icon 27
Remote Control via Network Indicator 28
Headphone Level Control 28

User Interface Tutorial 29

Menu Overview 31

Menu Items 31
Preset 31
Process 31
Input & Output Submenus 32
Encode 32

Menu Overview, continued

Schedule 33
System 33

Menu Selections 34

Preset 34

Preset List 34
Choose (preset) 34
Modify (preset) 35
Save Current (preset) 35
Save Current As 35

Compare 35
Protect 35
Passcode 36

Process 37

Input 37

Input Gain Master / Right Trim 37

Master Drive 38

Input Source 38

Input Mode 38

Input Failsafe 38

High Pass Filter 39

Phase Rotator 39

Pre-emphasis (FM Mode Only) 39

Output 40

Peak Output Level 40

Set Levels 40

AES-1 Output Sample Rate 40

De-Emphasis (FM Mode Only) 40

Outputs 41

Multiplex Power Limiting

(FM Mode Only) 41

Encode (FM Mode Only) 42

Composite Output 1 & 2 42

SCA Level 42

Pilot Injection 42

Pilot Phase 42

Separation 43

Schedule 43

Schedule List 43

New 43

Modify and Remove 43

Load From Card 43

Save To Card 44

Current State 44

Menu Selections, continued
System 44

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Port Baud 44
Security Lev(el) 44
Backlight 45
Set Time 45
Set Date 45
About 45
Change Password 45
Lock Unit 46
Resetting Passwords to Factory
Defaults 46
Load Defaults 46
Load From Card 46
Save To Card 46

Reboot 46
Reset Passwords for Levels 1 & 2 46
Security Config 47
NTP 47

Network 48

Mac Address 48

IP Address 48

Gateway 48

Subnet Mask 48

Save Changes 48

Reboot Display 48

Test Broadcast 48

3-THE OMNIA-5EX AND AUDIO
PROCESSING

Process Block Diagram 49

Wideband AGC 50
Phase Linear Crossovers 50
Two Band AGC 50
Enhancer Section 50
Deep Bass EQ 50
Phat Bass EQ 51
Warmth EQ 51
Stereo Expander 51
Multiband Dynamic Peak Limiter 51
Distortion Canceled Clipper 51
Look Ahead Limiter (HD Mode Only) 51
Stereo Generator / Encoder 52
Composite Clipper 52
Pilot Protection Filter 52

4- PROCESSOR INTERFACING

Processor Location 53
Analog STL Use 53

Digital STL Use 54

Processor Interfacing, continued
Monitoring Location 54
Source Material Quality 54

Omnia-5EX Use and Operation Manual – V: 1.1

Studio Microphone Processing 54
Processor Latency / Time Delay 55
Operating Levels 55

Omnia-5EX Connections 56

Output Connection Options (FM Mode) 56
Interfacing with a Digital STL/ Exciter
(FM Mode) 56
Pre-emphasis – where to insert?
(FM Mode) 57
Output Connection Options (HD Mode) 58
AES-2 Output Sample Rate Settings 59

5-FINE TUNING YOUR SOUND

About Loudness and Listener Fatigue 60

Clarifying your Processing Objectives 60

Adjustment Procedure 61

Meter Displays 62

AGC Metering 62
Limiter Metering 62

Interpreting the Meters 63

About Factory Presets 64

Loading a Preset 65
Parameter Editing 66
Adjusting the Wideband AGC 67
Adjusting AGC Crossovers 68
Adjusting the Two-Band AGC's 69
Adjusting the AGC Mixer 70
Adjusting The Enhancers 70
Adjusting the Limiters Crossover 72
Adjusting the Multiband Limiters 73
Adjusting the Final Mixer (Lim Mix) 74
Adjusting the Clippers
(FM Mode) 75
Adjusting the Look Ahead Limiter
(HD Mode) ` 76

Saving, Naming, Deleting and Protecting
Presets 78

Saving Presets 78

Renaming and Deleting Presets 79

Protecting Presets 79

Passcode 80

Getting the Sound You Want 81

A Word About Loudness 81
Quality versus Loudness 81
Increasing Loudness 82
Getting the Sound You Want, continued
Adding More “Detail” to the sound 83
Making Sound Equalization Changes 83

Thunder Bass 84

13

6 – REMOTE CONTROL SOFTWARE

Software Installation 85
Finding the software version number 86
Setup and Configuration 86

Edit Connection dialog box 87

Using the optional modem card 88
Using your own modem 88
Using a Direct Serial Connection 89

Connecting via Modem 89
Custom modem initialization strings 90
Using an Ethernet Based Connection 92
Upgrade Software Feature 92

Establishing a Remote Session 93

Terminal Programs/Direct Connection 94

Trigger Script Editor 95

Dry Contact Closures 95

Applying Control Voltages 95

What Can Scripts Control? 95

Use of Trigger Scripts 96

Paras and Sysparas 96

Using the Editor 96
Script Command Definitions 97

Dayparts 97

Presets 97

Non-system Parameters (paras) 98

System Parameters (sysparas) 99

Setting New syspara Values 100
Trigger Script Editor, continued 100

Creating a Trigger Script 100

Example: Switch to Mono 100
Example: Switch to Stereo 101
Interface Connector 102
“One Way” Scripts 102

Scripting via Daypart Scheduler 103

7 – TROUBLESHOOTING

Rear panel serial port setup 104

Normal boot up message 105
Audio Failure Alarm 106
Audio Restoration Alarm 106

Diagnostic & Error Messages 107

Safety Note! 109
Narrowing down problems 109

Obtaining Service 110

Appendix A

CE Declaration of Conformity 112

Appendix B

Audio Processing FAQ 114
Factory Preset Descriptions 117

Appendix C

Omnia-5EX Parameter Worksheet 120

Appendix D

Software Upgrade Procedures 121

Appendix E

GNU General Public License 122

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Omnia-5EX Quick-Start Setup Guide

We know that you’re probably in a hurry to get on the air with your new Omnia-5EX. If you have technical
expertise and previous knowledge of audio processor fundamentals, using the following Eight-Point Quick-Start
Checklist 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:

1. Install the Omnia-5EX in the 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!

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

3. Connect the audio inputs that are appropriate for your installation.

4. Navigate to the Input Menu and select the Analog or AES/EBU input. If your audio source is providing an

audio feed you should see meter activity on the Input, Output, and Processing meters.

5. While in the Input menu and observing the Input meters, adjust the left and right input level controls until

the input meters are peaking between –12 and –6 dBFS.

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

7. If you are using the Analog or Digital audio outputs, navigate to the Output Menu and adjust the output

levels for the equipment that follows the Omnia.

8. If you are using the Composite Outputs, navigate to the Encode Menu and adjust the Composite Outputs to

match the device following the Omnia-5EX.

You’re now ready to go on the air!

Note that the Omnia-5EX is shipped with the RocknRoll 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! Short descriptions of the 22 Factory Presets can be found in Appendix B on Page 117.

Chapter-1: Pre-Installation

Even though we believe the Omnia-5EX is the easiest processor to install in its class, please take a few minutes to

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read through this chapter before proceeding with the installation. This section offers common procedures for

installing your new Omnia-5EX processor. Note that there are additional installation and operation tips presented in

Chapter 4 that may pertain to your specific installation.

About This Manual

Some features apply only to HDFM channel features (such as the Look Ahead Limiter). These will be noted in
parentheses after the section heading: (HD Mode Only). Similarly, sections that specifically cover conventional FM
channel features will also be noted in parentheses after the section heading: (FM Mode Only)

Omnia-5EX Components

By now, you’ve unpacked the shipping carton to gain access to this manual. Now is the time to inspect the Omnia-

5EXunit and its shipping carton for any signs of shipping damage, which must be reported to your carrier for any

claims. The Omnia-5EX shipping box includes the following components:

Omnia-5EX processor (containing the DSP hardware)

Omnia-5EX PCMCIA Type Memory card (holding the DSP software)

Omnia-5EX Operating Manual (this document)

Warranty Registration Card (Please complete the form and return/FAX it to Telos/Omnia)

Two IEC Power Cords, one for use in the US, and one for use in Europe

PC Card & Optional Modem Installation

Before installing your Omnia-5EX, or even plugging in the power cord, make sure the Omnia-5EX PC Memory

Card and Optional Modem Card (if purchased) are installed into the correct card slots on the back panel and are
fully seated. Installation or removal must be done with the power off unless directed otherwise.

The PC Memory Card is inserted into the top card slot with the Omnia label facing up and the version number
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.

until the black release button, to the right of the card, pops out about 1/2” [12.70 mm]. This indicates the card is

properly seated in the PCMCIA slot.

Gently press the cards into the slots

The Omnia-5EX also contains a third PC Memory Card slot that is used to load software for the Front Panel. The

slot is located under the top cover on the right-hand side of the Front Panel circuit board and is normally un-

occupied. Please do not insert or remove any PCMCIA cards from this slot without the direct assistance of Telos /

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Omnia customer support. Make sure the AC power is off and disconnected from the unit before removing the top

cover and removing or replacing a card.

Important Note 1: The PC Cards used in the Omnia-5EX are not generic PCMCIA cards that can be bought in any

local computer store. They are cards that are specially qualified 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 Omnia, the cards, or both, and doing so will void your warranty!

Important Note 2: If you wish to operate the Omnia-5EX using a PCMCIA type modem, you must use the

available modem card from Omnia. Other modem cards are NOT qualified for use at this time. We cannot provide

technical support for any other modem card. External modems are a different case. 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

The Omnia-5EX subsystem is microcomputer-based. Therefore, it requires the same clean AC environment as any

modern computer system does. Even though the Omnia-5EX is equipped with quite robust internal AC input

transient suppression, we recommend that external transient suppressers/voltage regulation or an Uninterruptible

Power Supply (UPS) be employed. This recommendation becomes even more important when installing the

processor at a transmitter site, where there can be heavy transients on the power lines. These unwelcome events can

be caused by anything from load switching to lightning strikes on a nearby tower. Therefore, we ask that you give

your AC power environment and installation practices thorough consideration before plugging in your Omnia-5EX

unit.

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Installation & Connections

Throughout this section reference is made to “software parameters.” These are part of the Graphical User Interface,

which is covered in detail in Chapter 2.

Rack Mounting

The Omnia-5EX requires 3RU (5.25” [37 mm]) of rack space. Rack mount the unit using four rack screws. If only

two screws are going to be used, they should be in the bottom holes in the Omnia front panel. No other two-screw

mounting arrangement will prevent distortion of the front panel casting! Adequate ventilation should be provided,

and it is always good engineering practice to allow one blank rack space immediately above and below the Omnia,

especially if equipment generating significant heat is located below the unit. Install a 1RU (1.75”) vented or solid

panel to fill these spaces.

The processor should be installed into a thoroughly grounded 19” equipment rack. Refer to Chapter 4, “Processor

Interfacing”, for additional considerations on where to physically locate your processor.

Omnia-4.5HDFM Rack Mounting Requirements

Omnia-5EX Rack Mounting Requirements

AC Connection (IEC)

The Omnia-5EX utilizes a heavily filtered, universal AC power-entry module. Its integral power switch is located

just above the IEC power cord receptacle. The Omnia-5EX’s voltage–sensing, switching power supply allows it to

operate on AC mains voltages from 100 to 240 VAC, 50/60 Hz. In the USA, plug the provided IEC type AC power

cord into the unit and then into a grounded AC outlet. Outside of the USA, you must use the appropriate power cord

that complies with local electrical regulations.

Press the “I” side of the rear-panel power switch to turn on the unit. The Omnia-5EX is designed to be continuously
powered, however, pressing the “O” side of the switch turns off the unit for servicing.

When power is first applied, it takes approximately ten seconds to load the DSP code from the rear-panel PCMCIA

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

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operating software and DSP code is loaded. Once the main Omnia-5EX 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

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 +4dBu balanced signals. Pin 2 is Hot. The digital AES-3 inputs

(IN and EXT. SYNC) accept any sampling rate between 32kHz and 96kHz. 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-5EX) 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-5EX Input Menu.

Audio Outputs—Analog & Digital (Male XLR)

Individual Left and Right analog outputs are available on two male XLR jacks. There are two AES outputs. They are

user configured for the conventional FM channel and/or the HD Radio/DAB signal. The outputs labeled OUT-1 and

OUT-2 provide selectable sampling rates. The analog output is derived from a D/A converter driven from whichever

digital output is desired, either FM or HD/DAB.

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

Composite Outputs (BNC) (FM Mode Only)

These two low impedance outputs (Composite 1 and Composite 2) are each capable of driving up to 100 feet of RG-

58A/U 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 Encode menu. An internal jumper sets the output impedance to either 10 ohms

(the factory setting) or 75 ohms. The default setting is appropriate for the vast majority of exciter connections.

However, in the event a higher source impedance is required a jumper can be moved (one for each composite

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output) on the motherboard to change the source impedance to 75 ohms. For reference, J10 is for Composite #1, and

J13 is for Composite #2.

19 kHz Sync Output (BNC) (FM Mode 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. This Sync output is phase and frequency locked to the

stereo pilot. When this signal is used to synchronize an external SCA or RDS generator, this locking assures that no

difference frequencies exist which may cause intermodulation components between the pilot and the SCA signal.

SCA Input (BNC) (FM Mode Only)

Any SCA signal above 53 kHz can be added to the composite outputs of the Omnia-5EX by connecting the SCA

signal to the SCA INPUT connector. The SCA signal is mixed in the analog domain directly into both composite

outputs. A high-pass filter on the SCA input provides SCA to main-channel crosstalk protection. The SCA deviation

level is controlled through the SCA Level software parameter in the Encode Menu.

Ethernet Connection

The Remote Control link for your Omnia-5EX can take several forms. Dial-up modem, RS-232 serial, and TCP/IP

over 10BaseT and 100BaseT networks can be utilized. Using any of these options requires the Omnia-5EX Remote

Control application that can be downloaded from http://www.omniaaudio.com, the Omnia website. The setup and

operation of the Remote Control software application is covered in detail in Chapter 6.

RS-232 Connection (DB-25F)

This connector serves two important purposes: It can be used for a local, bi-directional computer connection with

Omnia-5EX Remote Control, or it can be used for troubleshooting and error code resolution. In the former case,

Omnia-5EX 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 RS-232 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-5EX.

The setup and operation of the Omnia Remote Control application is covered in detail in Chapter 6.

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Interface Connection (DB-9M)

This connector is the interface to the Omnia's internal trigger script function. Eight of the pins are “trigger” inputs

and the remaining pin is the ground reference. The trigger inputs can be used to dynamically alter the Omnia-5EX’s

operation in response to logic signal transitions at the interface connection. There is a unique response to each

trigger input, that is, both “go-high” and “go-low” transitions are sensed. With eight inputs, and two sensed states

for each one, sixteen unique 'trigger events' may be sensed to control the Omnia-5EXin response to these input logic

transitions. Virtually ANY parameter of the Omnia can be controlled using the Trigger Scripts.

The Trigger Script Interface Editor is a standard component of the Omnia-5EX Remote Control application and is

covered in detail in Chapter 6.

Pin 1 Rear Panel Interface Connector for Remote Trigger Script Activation

The Pinout of the Omnia-5EX rear-panel DB-9 Interface connector is as follows:

PIN 1 activates Trigger Script 1

PIN 2 activates Trigger Script 3

PIN 3 activates Trigger Script 8

PIN 4 activates Trigger Script 6

PIN 5 is connected to ground

PIN 6 activates Trigger Script 2

PIN 7 activates Trigger Script 4

PIN 8 activates Trigger Script 7

PIN 9 activates Trigger Script 5

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Powering Up

When the Omnia-5EX is first turned on, there is a few seconds of delay as the system starts up. You should notice a

revolving Omnia logo on the screen, and then the Main Menu screen should appear.

After approximately ten seconds, audio will be present from the analog, composite and headphone outputs. The

AES/EBU outputs also become usable at this time. However, full initialization of the ports is not complete for

several more seconds and there could be a brief, sub-second interruption while the AES/EBU IC’s configurations are

being verified by the operating system. After 25 to 30 seconds the Main Menu display will appear on the LCD

screen. At this point, the Omnia-5EX is fully operational.

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Chapter-2: The Omnia-5EX User Interface

Now that your Omnia-5EX 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-5EX

processor.

A front panel jog-wheel with integral push switch and an Active-Matrix Color LCD makes up the Omnia-5EX

Graphical User Interface. Two “Display Modes” are available: One is the “Menu Display”, and it shows the menus,

submenus and user-adjustable parameter settings. The other is the “Meter Display”. It shows bargraph indications

for the AGC and Limiter stages, as well as VU and 'digital sample accurate' peak indications of the Input and Output

Levels.

Simply pressing and holding the jog wheel button for two seconds toggles between the two display modes.

“Meter Display” Mode “Menu Display” Mode

Current Preset Time of Day Help Text Box

The functions of the Menu Display can be selectively password protected from unauthorized processing or preset

changes. The Meter Display dynamically indicates real-time signal processing activity, as well as the Input/Output

levels. The backlights for the two displays are automatically turned off after a user set period of jog wheel inactivity,

and the factory default timeout is 15 minutes. User options of 5, 15 and 60 minutes turn-off times can be customized

under the System submenu.

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Using the Jog Wheel

The main user control for the Omnia-5EX is the large, easy to use jog wheel with its integral push-switch. Using the

control is both intuitive, and efficient, making it easy to navigate the menu structure of the Omnia-5EX. Processing

changes and system adjustments can be quickly made with ease without having to remember multiple controls, their

positions, and what they do in each menu. The behavior of the Omnia-5EX's menu system is consistent across pages

and is easy to learn. We believe that you will quickly become comfortable with how it works, and appreciate its

simplicity.

See the diagram below to learn how each movement of the jog wheel affects the various menu options.

Pressing and holding the jog wheel for two seconds will
toggle between the Menu and Metering display modes.

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Level Meters & Processing Bargraphs

Meter Display Mode screen showing I/O and process bargraphs

In “Meter Display” Mode, the

horizontal meters show digital, sample-

accurate, peak representations of the

left and right input and output levels,

while the vertical bargraphs show

processing activity of the various

algorithms. The currently selected

Preset Name is displayed is the bottom

left corner of the Meter Display, the

currently entered IP address in the

center and the current time is displayed

in the lower right corner.

Audio I/O Level Display

The horizontal meters show the signal levels below full scale digital, (0 dBFS) which is the absolute maximum level

in the digital domain. Both input and output levels are displayed in real time. The “bouncing balls” indicate sample-

accurate peak signal levels. In normal operation, the “bouncing balls” in the Input meters should regularly indicate

between –12 and –6 dBFS. Since the meters are indicating the true peak level, this will give you about 20 dB of

"VU" system headroom given typical (not hyper-compressed) program material. The Output meters indicate the

peak levels at the analog and digital XLR outputs but not the composite MPX outputs.

Processing Display

The nine vertical bargraphs in the lower half of the Meter Display show the processing activity in real time within

the Omnia-5EX. The first vertical meter (labeled W) represents the processing activity in the Wideband AGC

section. The two vertical “AGC” meters show the processing activity of each of the AGCs in the two-band AGC

section. The five vertical “Limit” meters show the processing activity in each of the limiter sections of the multi-

band limiter. Each of the meters is capable of indicating up to 25 dB of gain reduction.

The rightmost vertical bar graph (labeled EFX) indicates the processing level of the (optional) Stereo Enhancement

effect.

Note: The wideband AGC and Two-band AGCs will recover to a resting gain setting which coincides with the RTP

(Return To Platform) levels set for each band. Refer to Chapter 5, “Fine Tuning Your Sound”, for more information

on interpreting and using the processing bargraph displays.

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Main Menu Display

The Omnia-5EX Main Menu is displayed on

the LCD screen in “Menu Display” Mode, and
offers seven menu selections: Preset, Schedule,
Process, Encode, Input, Output and System.

Below the Main Menu in the lower left corner

of the display is a multipurpose “Help Text”

box.

The Omnia-5EX menu system has been

designed to be intuitive and simple to use, with

a minimum of layered submenus. Most

operating parameters are found on one of the

seven main menus. This allows multiple

processing changes to be made quickly and

with ease.

Remember that to switch between the Main Menu and the Metering screens simply press and hold the jog-wheel

button for two seconds.

When the Main Menu is displayed (as shown above), rotating the jog-wheel sequentially highlights each menu item.

This is called Highlight Mode. With a menu item highlighted, pressing on the jog-wheel (called “clicking”) brings

up that item’s submenu window. Similar action results when submenus are selected under these seven main menus.

“Home” Icon Preset Submenu

The Preset menu item is shown highlighted in

the Main Menu Screen illustration above. In this

case, clicking the jog-wheel would open the

Preset Submenu window (shown at left). To exit

a submenu and move back to the main menu,

highlight the “H” Home icon in the lower left

corner, and click the jog-wheel.

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In all submenus with adjustable parameters, rotating the jog-wheel sequentially highlights each control or selection

choice, along with the Home icon and the Headphone level control. In the Process submenu, the parameter

adjustment windows have an “X” Close Window icon in the upper right corner (as shown in the AGC Mixer

window below). Highlighting this icon and clicking closes the window, returning the user to the Process submenu,

one level above.

“X”

Close Window Icon

AGC Mixer Submenu

To change the selection in a multiple-choice parameter, highlight the desired choice with the jog-wheel and click. A

filled box serves to indicate that a parameter choice is selected.

To adjust a “rotary” knob control, like those shown in the AGC Mixer Parameter Window, highlight the control and

click. The jog-wheel now functions as a rotary control. Rotating it clockwise adjusts the control up; counter-

clockwise adjusts the control down. The adjusted value is shown below the control. The original value is retained in

a different color until the jog-wheel is clicked to make the new value permanent.

To cancel a control change, return the jog-wheel to the control’s original value. To apply a new level or value and

return to Highlight Mode, just click the jog-wheel.

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Remote Control Session via Network Indicator

An exclamation mark inside a yellow triangle

will show up in the lower left corner of the

Main Menu screen when a Network remote

session is in progress. A remotely connected

network session has priority over local

control of the front panel, so during a

Network remote session the Main Menu will

be grayed out. You may disconnect a

Network remote session and regain front

panel control by clicking the Disconnect

Remote button.

Omnia-5EX Main Menu

The triangle with exclamation mark signifies that a TCP/IP Remote Control session is active.

Note: No front panel indication is shown when a serial or modem based remote control session is in progress!

Headphone Level Control

A standard ¼” stereo headphone jack located at the lower left corner of the front panel allows the processed signal to

be monitored, and a Headphone volume level control is available in each submenu. When the headphone volume

control slider is highlighted, clicking changes the jog-wheel into a headphone volume control. Once the headphone

volume is adjusted to your liking, clicking the jog-wheel exits the volume adjustment mode, returning the jog-wheel

back to Highlight Mode.

Note: The headphone amplifiers are fed from the same high quality, 24-bit D to A converter as the analog XLR

outputs. Therefore, the overall Headphone volume will also be affected by the setting of the Peak Output Level

controls in the Output Menu.

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User Interface Tutorial – Input Source Selection and Peak
Input Level Setting

The following two exercises are a useful introduction to the user interface. Start from the Main Menu (as displayed

when the unit is first turned on).

The first exercise changes a parameter selection (the Input Source selection):

1. If the Menu Display is not showing, press and hold the jog-wheel for two seconds to display it.

2. Rotate the jog-wheel to highlight Input.

3. Click the jog-wheel (push on the wheel once) to bring up the Input window (shown below).

Input Source Select

Home Icon “H” Input Menu

Headphone Level Control

4. Rotate the jog-wheel until one of the Input Source choices: Analog or AES/EBU is highlighted. The filled

box next to the selection name identifies the current selection. The factory default selection for Input Source

is Analog. To change the selection to AES/EBU, highlight AES/EBU and click. The AES/EBU box will now

be filled and the digital input is now active. If you are using the analog inputs, highlight Analog and click to

reselect the Analog inputs.

5. Rotate the jog-wheel until the Home icon “H” is highlighted in the lower left corner of the window. Click to

return to the Main Menu.

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The next exercise adjusts a parameter that uses a value. (Input Gain)

This also serves as a tutorial on setting the proper input levels for optimum performance:

For complete information on the controls in the Input Menu, see Pgs. 37-38.

1. The Menu Display should still be showing. If not, press and hold the jog-wheel for two seconds to

display it.

2. Highlight Input and click to open the Input window.

Input Menu Showing Input Gain Controls

2. Rotate the jog-wheel to highlight Input Gain Master

(Not Master Drive), and then click the jog-wheel to

select the control.

3. Rotate the jog-wheel CW to increase the input gain. Rotate the jog-wheel CCW to decrease the input gain.

This control adjusts both channels together so if your input source is unbalanced, watch the Left channel

Input bargraph meter primarily when adjusting. The gain in dB is shown below the “control.” Note that the

original setting is always shown in a different color when the control is adjusted. To cancel level changes,

move the control back to the original setting and click.

Using normal program audio, a correct gain setting results in peak indications (the “bouncing balls”)

regularly bouncing up to between -12 and –6 dBFS. Since the meters are indicating the true peak level, this

will give you about 20 dB of "VU" system headroom given typical (not hyper-compressed) program material.

5. Once the desired gain is reached, click the jog-wheel to accept and use that value. This returns the jog-wheel

to Highlight Mode.

6. Highlight and click Input Gain Right Trim and adjust it if the input source is unbalanced. It adjusts the gain

of the right channel over a limited range of plus or minus 3 dB.

7. Rotate the jog-wheel until the “H”ome icon is highlighted. Click to return to the main menu.

All of the Omnia-5EX’s software parameters are set in a similar fashion using the jog-wheel in Highlight Mode to

scroll through menu items and parameters. Clicking a highlighted item selects it; when that item is a control, the jog-

wheel adjusts the value or level. Clicking accepts the value or level and returns the jog-wheel to Highlight Mode.

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