Omnia Industries 4.5FM User Manual

OMNIA – 4.5FM

Broadcast Audio Processor

Installation and Operation Manual

Version 1.00a

January 2002

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

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

Omnia ● 2101 Superior Avenue Cleveland, Ohio 44114 USA

Omnia Europe ● Johannistrabe 6 D-85354 Freising Germany

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 4.5fm 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

January, 2002

Greetings!

It’s with great pleasure to offer you our latest audio processor…Omnia-4.5fm! 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-4.5fm! 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-4.5fm delivers!

Beyond the extensive laboratory development and testing of Omnia-4.5fm, we’ve taken it to the field and compared it
with every other processing system available in it’s class – and have done so worldwide. It’s the sound that matters, and
I truly feel that you’ll significantly improve your on-air sound and further your competitive position with Omnia-4.5fm.

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-4.5fm.
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-4.5fm 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

TABLE OF CONTENTS

Greetings i
Safety Instructions ii
Hazard / Warning Labels iii
Notices iv
Specifications v
Warranty vi
QuickStart Setup Guide vii
Enabling the Stereo EFX Option viii

1 – INSTALLATION

Omnia 4.5fm Pre-installation Tasks 1

PC Card and Modem Installation 1
AC Environment Considerations 2
Installation and Connections 3

Rack Mounting 3
AC Connection 3
Audio Inputs 4
Audio Outputs 4
Composite Outputs 5
19 KHz Sync Output 5
SCA Input 5
Ethernet Connection 5
RS-232 Connection 5
Interface Connection 6
Powering Up 7

2 – THE OMNIA 4.5 USER
INTERFACE

User Interface Introduction 9
Using the Jog Wheel 10

Level Meters and Processing Bargraphs 11

Audio I/O Level Display 11
Processing Display 11

Main Menu Display 12

Home Icon 12
"X" Close Window Icon 13
Remote Control via Network Indicator 14
Headphone Level Control 14

User Interface Tutorial 15

The Menu Tree – part one 17
The Menu Tree – part two 18
Menu Items 19
Preset 19
Process 19

User Interface Tutorial, cont.

Input & Output Submenus 20
Encode 21
Schedule 21
System 22

Menu Selections 22

Preset 23

Preset List 23
Choose (preset) 23
Modify (preset) 23
Save Current (preset) 23
Save Current As 24
Compare 24

Process 24

Input 25

Input Gain Left / Right 25
Master Drive 25
Input Source 26
Input Mode 26
High Pass Filter 26
Phase Rotator 26
Pre-emphasis 27

Output 27

Peak Output Level 27
De-emphasis 28
Output Sample Rate 28
Multiplex Power Limiting 29

Encode 30

Composite Output 1 & 2 30
SCA Level 30
Pilot Injection 30
Pilot Phase 31
Separation 31

Schedule 31

Schedule List 31
New 32
Modify and Remove 32
Load From Card 32
Save To Card 32
Current State 32

System 33

Port Baud 33
Security Lev(el) 33
Backlight 34

Set Time 34
Set Date 34
About 34
Change Password 34
Lock Unit 35
Load Defaults 35
Load From Card 35
Save To Card 35

Network 36

Mac Address 36
IP Address 36
Gateway 36
Subnet Mask 36
Save Changes 37
Reboot Display 37
Test Broadcast 37

Security Config 37

3-THE OMNIA-4.5FM AND AUDIO
PROCESSING

Process Block Diagram 39

Wideband AGC 40
Phase Linear Crossovers 40
Two Band AGC 40
Enhancer Section 40
Deep Bass EQ 40
Phat Bass EQ 41
Warmth EQ 41
Stereo Expander 41
Multiband Dynamic Peak Limiter 41
Distortion Canceled Clipper 41
Stereo Generator / Encoder 41
Composite Clipper 42
Pilot Protection Filter 42

4- PROCESSOR INTERFACING

Processor Location 43

Analog STL Use 43
Digital STL Use 44
Monitoring Location 44
Source Material Quality 44
Studio Microphone Processing 45
Processor Latency / Time Delay 45
Operating Levels 45

Omnia-4.5fm Connections 46

Output Connection Options 46

Interfacing with a Digital STL/ Exciter 46

Pre-emphasis – where to insert? 46

5-FINE TUNING YOUR SOUND

About Loudness and Listener Fatigue 49

Clarifying your Processing Objectives 49

Adjustment Procedure 50

Meter Displays 51

AGC Metering 51
Limiter Metering 51

Interpreting the Meters 52

About Factory Presets 53

Loading a Preset 54
Parameter Editing 55

Adjusting the Wideband AGC 56
Adjusting MB AGC Drive Levels 58
Adjusting Multiband AGC's 59
Adjusting the AGC Mixer 60
Adjusting The Enhancers 61
Adjusting the Limiters Crossover 62
Adjusting the Multiband Limters 63
Adjusting the Final Mixer (Lim Mix) 64
Adjusting the Clippers 65
Adjusting the MPX Power Limiter 66

Saving, Naming, and Deleting Presets 68

Saving Presets 68
Renaming and Deleting Presets 69

Getting the Sound You Want 69

A Word About Loudness 69
Quality versus Loudness 70
Increasing Loudness 70
Adding More "Detail" to the sound 71
Making Sound Equalization Changes 72

Thunder Bass 72

6 – Remote Control Software

Software Installation Options 75

Using the Self-Installer 75
Using the raw executable 76
Setup and Configuration 76

Finding the software version number 77

Edit Connection dialog box 78

Using the optional modem 79
Using your own modem 79
Using a Direct Serial Connection 80

Connecting via Modem 80

Custom modem initialization strings 81

Using an Ethernet based connection 83

Establishing a Remote Session 84

Terminal Programs/Direct Connection 85

Trigger Script Editor 86

Dry Contact Closures 86
Applying Control Voltages 86

Use of Trigger Scripts 87

Paras and Sysparas 88

Using the Trigger Script Editor 88

Script Command Definitions 90

Dayparts 90
Presets 90
Non-system Parameters 91
System Parameters 92
Setting New Syspara Values 93

Using the Script Editor 93

Example: Switch to Mono 94
Example: Switch to Stereo 94

Interface Connector 96
"One Way" Scripts 96

Scripting via Daypart Scheduler 98

Appendix A

CE Declaration of Conformity

7 – Troubleshooting

Rear panel serial port setup 99

Normal boot up message 101

Audio Failure Alarm 102
Audio Restoration Alarm 102

Diagnostic Messages 103

Clearing corrupted NVRAM 104

Diagnosing abnormal boot behavior 106

Narrowing down problems 107

Performing software upgrades 109

Obtaining Service 111

Preset Parameter Worksheet 112

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 4.5 Use and Installation Guide – Ver 1.00a

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.

See the following page for additional information.

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.

Omnia 4.5 Use and Installation Guide – Ver 1.00a

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!

Omnia 4.5 Use and Installation Guide – Ver 1.00a

NOTICES

All versions of compatibility, trademarks, etc. of hardware and software products not made by Omnia, but mentioned

in this manual or other accompanying material, are informational only. Omnia makes no endorsement of any

particular product for any purpose, nor claims any responsibility for its operation or the accuracy of its presentation.

Warranty registration and Software Updates

Omnia 4.5's operation is almost entirely determined by software. A continuous program of improvement ensures that

the product remains at the 'cutting edge'. In order to be notified of new software releases, be sure to FAX or mail in

the registration form.

Trademarks

Omnia, the Omnia logo, and "The Promise of Digital ... Delivered!" are trademarks of TLS Corporation. All other

trademarks mentioned in this work are the property of their respective holders.

Copyright

Copyright © 1997-2002 TLS Corporation. All rights reserved. Published by Omnia, who reserves the right to make

improvements or changes to the products described herein (which may affect the product specifications) and to revise

this manual as required without notice.

Repair Procedures

You must contact Omnia for a Return Authorization number before returning any products. Packages without proper

authorization may be refused. Please write the RA number on the shipping label side of the returned package. Be sure

to adequately insure your shipment. Customers in North America can contact Omnia customer support at +1 (216)

241-7225. In Europe, contact Omnia Europe at [phone] (Germany). All other customers should contact their

local Omnia dealer to verify the problem and then contact Omnia to arrange for repair. Refer to the section entitled

"Obtaining Service" for more details.

Caution

The installation and servicing instructions presented in this manual are for use by qualified

installation and service personnel only. To avoid electric shock, do not perform any servicing other

that than contained in the operating instructions unless you are qualified to do so. Refer all servicing

to qualified personnel.

Warning

To reduce the risk of electrical shock, do not expose this product to rain or moisture.

Omnia 4.5 Use and Installation Guide – Ver 1.00a

Omnia 4.5fm Specifications

As of January 2002 – Version 4.0.10 Software

Note: All measurements made with the supplied "Proof of Perf" preset, which is available in the Preset
Submenu. Due to the nature of multi-band gain control and clipper algorithms used, the subjective sound
quality of any audio processor bears little relationship to its measured electrical performance.

Overall Specifications

System Frequency Response

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.

System Signal to Noise Ratio

100% modulation). The measured noise floor is highly dependent upon
the setting of the Input and Output Gain controls. The Omnia 6's noise
floor is primarily governed by the dynamic range of the Crystal
Semiconductor CS5360 A/D Converter, which has a specified Dynamic
Range of 105dB. The dynamic range of the Omnia 6 DSP chain is well in
excess of 120 dB. Typical SNR using the "FactTest2" preset is greater
than –80dB RMS in a 15 kHz bandwidth, referenced to 100%
modulation.

System Distortion

distortion above 7.5 kHz is not relevant in the FM system due to the
removal of harmonics by the system's 15 kHz low pass filter)

System Stereo Separation

Analog Audio Input

Configuration: Left/Right Discrete Stereo. Electronically balanced, floating, and
symmetrical.

Input impedance: 10k ohms resistive.

Maximum Input Level: +24.10 dBu (12.28V RMS).

Nominal Input Level: A 13dBu input signal nets a –12dBFS input meter reading when the Input
Gain Control is set to 0.0 dB. Application of a 1.00 dBu 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 approximately –15dB.

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

Complies with the standard 50 or 75 microsecond pre-emphasis curve

> -80 dB de-emphasized, 20 Hz –- 15 kHz bandwidth, referenced to

Less than 0.01% THD, 20 Hz – 7.5 kHz. (second order harmonic

Greater than 65 dB, 20 Hz –- 15 kHz; greater than 70 dB typical.

Analog I/O

A/D Conversion: Crystal Semiconductor CS5360, 24 bit 128x oversampled delta sigma
converter. Linear-phase, 21.7 kHz anti-aliasing lowpass filter, with

0.0025dB maximum passband ripple.

Analog Audio Output

Configuration: Left/Right Discrete Stereo. Electronically balanced, floating and
symmetrical. Flat or pre-emphasized response for either 50 or 75
microseconds.

Source Impedance: 20 ohms.

Load Impedance: 600 ohms or greater recommended, balanced or unbalanced.

Peak Output Level
(ref 100% modulation): Adjustable from -6 dBu to +24 dBu peak, into 600 ohms or greater load,
software-adjustable.

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

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

D/A Conversion: Crystal Semiconductor CS4390 24 bit, 128x oversampled.

Digital I/O

Digital Audio Input

Configuration: Stereo per AES/EBU standard, Crystal Semiconductor CS8420 Digital
Audio Transceiver with 24 bit resolution, software selection of stereo,
mono from left, mono from right or mono from sum. Automatically
accepts sample rates between 32 and 96 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

Configuration: Stereo per AES3 standard, Crystal Semiconductor CS8420 Digital Audio
Interface Transceiver with 24 bit resolution. 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 are
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

Configuration: Output sample rate can be synchronized to the signal present on the
AES/EBU input, or to the AES3 signal applied to the Ext.

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

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.

Composite Outputs

Composite Baseband Outputs

Configuration: Two electrically independent outputs. Software based level adjustment.

Source Impedance: 10 ohms or 75 ohms, internal jumper-selectable. Single-ended and
floating over chassis ground.

Load Impedance: 50 ohms or greater load is suggested.

Output Level Range: 1.25 V p-p to 9.50 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. Tighter tolerance available on special order.

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: Greater than 55 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.

System Remote Control

Remote Control Methods

Configuration: Modem, direct serial, or 10/100BaseTX Ethernet.

Modem: Supplied 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.

Connectors: RS-232 port, EMI-suppressed DB-25 female connector. Industry
standard EMI suppressed RJ-45 connector for Ethernet.

Remote Control Trigger 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 included
Omnia 6 Remote Control software. Virtually any parameter of the Omnia
6 may be programmed to change through this interface.

Miscellaneous

Power Requirements

Voltage: 100-250 VAC, 50/60/440 Hz., 33VA

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

Internal Power Supply

Level B Conducted Emissions. EN61000-4-2, -3, -4, -5, -6 level 3
immunity compliant. EN60950, VDE0805, IEC950, UL1950, BABT, CSA
C22.2 No. 950 Approvals. Full international safety approval. CE marked.
MTBF – 150,000 hours minimum per MIL-HDBK-217F.

Overvoltage and short circuit protected. Meets EN55022, EN55011

Environmental

specified operating voltage ranges.

Operating Temperature: 32 to 122 degrees F (0 to 50 deg. C) for

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

Dimensions

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

19" wide x 5.25" high x 16" deep (48.26cm wide x 13.335 cm high x

Shipping Weight: 33 lbs. / 15.876 kg

Telos/Omnia Research and Development is constantly working to improve the quality of our

products. Actual operating specifications are subject to change or improvement without notice.

Warranty

his Warranty covers "the Products," which are defined as the various audio equipment,

T

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 4.5 Use and Installation Guide – Ver 1.00a

Omnia 4.5 Quick-Start Setup Guide

We know that you're probably in a hurry to get on the air with your new Omnia 4.5. If you have
technical expertise and previous knowledge of audio processor fundamentals, using the following
Seven-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:

Omnia 4.5 Rear Panel View

1. Install the Omnia 4.5 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 no higher than –12dBFS

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 4.5.

You're now ready to go on the air!

Note that the Omnia 4.5 is shipped with the RocknRoll preset as the default. While leaning toward
the competitive side, it provides a good generic starting point, with a rich and balanced sound,
which is 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!

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Omnia 4.5 Use and Installation Guide – Ver 1.00a

Enabling the Optional Stereo Enhancer Algorithm

The Omnia 4.5fm contains an optional Stereo Enhancement (StereoEFX) option which may be
enabled by purchasing it when the unit is ordered from your dealer, or at any time afterward if you
so choose. StereoEFX increases the stereo sound field in an intelligent manner, providing a
bigger sound on the dial. The algorithm is fully mono-compatible, and does not generate
unwanted artifacts during the enhancement process.

To enable the option, a 6-symbol decryption key must be purchased from your Omnia dealer or
directly from Omnia. The decryption key is then entered into the "Enable Stereo EXP" dialog box.
Each decryption key is unique to each Omnia 4.5 unit, and the key is only valid for one calendar
day. Once the algorithm has been enabled, it is enabled for the life of the unit, or until the front
panel software is upgraded. Providing your unit's serial number at the time you purchase the
option guarantees that it will continue to function if you ever choose to upgrade the unit's
software.

You will need to provide three things at the time the key is purchased:

1. The serial number of the Omnia 4.5.

2. The unit's MAC address from the rear panel (12 digit number that begins with 0050c24...)

3. The System Date as displayed in the System Menu or in the "Enable StereoEXP" dialog box.

Once you have obtained the key by purchasing the option, you enable the Stereo Enhancement
algorithm as follows:

1. Unlock the unit at Level 3;

2 Navigate to the Process Menu and open it;

3. Navigate to the Enhance Submenu and open it;

4. Navigate to the Enable StereoEXP button and click on it;

5. Enter the 6-digit authorization key in the dialog box. Note that the key is case sensitive, and

may contain both numerals and upper and lower case letters.

6. Once the code is entered, click on the Checkmark button. If the code was entered correctly, a

message box should display "Stereo EXP has been enabled!" Your Stereo Enhancer option is
now enabled for the life of the unit.

Special Note: The StereoEFX decryption code is generated by a special key
generator using your Omnia 4.5's unique network MAC address and its system
date as an input to the algorithm. Therefore, the decryption key is valid for one
calendar day. When you purchase the key, you must install and enable the
option while the calendar day you provided when the key was purchased is still
valid in the unit!

Chapter 1 – Pre-installation

We believe that the Omnia-4.5fm is the easiest processor to install in its class. But please take a few minutes to read
this chapter before proceeding with the installation.

Pre Installation Tasks

This section offers common procedures for installing your new Omnia-4.5fm processor. Note that there are additional

installation and operation tips presented in Chapter 4 that may pertain to your specific installation.

Omnia-4.5fm Components

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

4.5fm unit and its shipping carton for any signs of shipping damage, which must be reported to your carrier for any

claims. The Omnia-4.5fm shipping box includes the following components:

➤ Omnia-4.5fm processor (containing the DSP hardware)
➤ Omnia-4.5fm PCMCIA Type Memory card (holding the DSP software)

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➤ Omnia-4.5fm 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 & Modem Installation

Before installing your Omnia-4.5fm, or even plugging in the power cord, make sure the Omnia-4.5fm 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 Omnia label facing up. 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. Gently

pops out about 1/2" [12.70 mm]. This indicates the card is properly seated in the PCMCIA slot.

press the cards into the slots until the black release button, to the right of the card,

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Rear Panel Expansion Card Slots

The Omnia-4.5fm also contains a second PC Memory Card that contains the software for the Front Panel. This card

has been pre-installed at the factory and is located under the top cover on the right-hand side of the Front Panel circuit

board. Please make sure the AC power is off and disconnected from the unit before removing the top cover and

removing or replacing the card.

Important Note 1: The PC Cards used in the Omnia-4.5fm are not 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 Omnia or the cards, and doing so will void your warranty!

Important Note 2: If you wish to operate the Omnia-4.5fm 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

The Omnia-4.5fm is microcomputer-based. Therefore, it requires the same clean AC environment as any computer

system. Even though the unit has quite robust internal AC input transient suppression, we recommend that external

transient suppressers/voltage regulation or an Uninterruptible Power Supply (UPS) be employed as well. This is

especially recommended when installing the processor at a transmitter site. Here, heavy transients on power lines,

caused by events from normal load 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 Omnia4.5-fm 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.

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Omnia 4.5 Rack Mounting Requirements

Rack Mounting

The Omnia-4.5fm 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, Omnia-4.5fm User Tips”, for additional considerations on where to physically locate your processor.

AC Connection (IEC)

The Omnia-4.5fm utilizes a heavily filtered, universal AC power-entry module. Its integral power switch is located

just above the IEC power cord receptacle. The Omnia4.5-fm'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 the local electrical regulations.

Press the “I” side of the rear-panel power switch to turn on the unit. The Omnia4.5-fm 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

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

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

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

Rear Panel Connections

Omnia 4.5 Back Panel Connections

Audio Inputs—Analog & Digital (Female XLR)

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

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

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

setting in the Input Menu.

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

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

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

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

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

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

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

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

Omnia-4.5fm Input Menu.

Audio Outputs—Analog & Digital (Male XLR)

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

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

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

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

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Omnia 4.5 Use and Installation Guide – Version 1.00a

Composite Outputs (BNC)

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 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)

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)

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Any SCA signal above 53 kHz can be added to the composite outputs of the Omnia-4.5fm 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 a measure of 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-4.5-fm 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-4.5 Remote

Control application that can be downloaded from the Telos/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-4.5 Remote Control, or it can be used for troubleshooting and error code resolution. In the former case,

Omnia4.5-fm Remote Control software is utilized. In the latter, any terminal emulation program can be used. In either

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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 male end being attached to the Omnia4.5-fm.

The Omnia Remote Control application is covered in detail in Chapter 6.

Interface Connection (DB-9M)

Pin 1 Rear Panel Interface Connector for Remote Trigger Script Activation

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-4.5fm’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-4.5fm in 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-4.5 Remote Control application and is

covered in detail in Chapter 6.

The Pinout of the 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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Omnia 4.5 Use and Installation Guide – Version 1.00a

Powering Up

When the Omnia-4.5fm is first turned on, an operating system start up screen is displayed. Under normal conditions it

should appear as:

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If the Network Configuration has been changed from the factory defaults, a second screen will appear when the unit

does a warm boot to load the network parameters:

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

AES/EBU output becomes usable at this time however, full initialization of the port is not complete for several more

seconds. After 25 to 30 seconds, the Main Menu display will appear. At this point, the Omnia 4.5 is fully operational.

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Omnia 4.5 Use and Installation Guide – Version 1.00a

Chapter 2

The Omnia 4.5 User Interface

Now that your Omnia-4.5fm 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-4.5fm processor.

The User Interface

A front panel jog-wheel and Active-Matrix Color LCD make up the Omnia-4.5fm Graphical User

Interface. The screen acts as both the “Menu Display”, showing the menus, submenus and user-adjustable

parameter settings and as the “Meter Display”. It shows bargraph indications for the AGC and Limiter

stages, as well as VU and sample-accurate peak indications of the Input and Output Levels.

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Meter Display Screen alternates with the Main Menu Screen on the same display

The Menu Display can be password protected from unauthorized processing or preset changes, while the

Meter Display dynamically indicates real-time signal processing activity. Simply pressing and holding the

jog wheel button for two seconds toggles between the two display modes. The display is automatically

turned off after a user set period of jog wheel inactivity, and the factory default timeout is 15 minutes. The

LCD display backlight turn-off time can be customized under the System submenu.

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Using the Jog Wheel

The main user control for the Omnia 4.5 is the large, easy to use jog wheel with its integral push-switch.
Using the control is bot intuitive, and efficient, making it easy to navigate the menu structure of the Omnia

4.5. 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

4.5'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.

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Level Meters & Processing Bargraphs

Omnia 4.5 "Metering" Screen

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The horizontal meters show sample-

accurate peak and VU 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

in the bottom left corner of the Meter

Display, while the current time is displayed

in the lower right corner.

Audio I/O Level Display

When the metering display has been selected both input and output levels are shown in real time. The bars

indicate VU while the “bouncing balls” indicate sample-accurate peak signal levels. The horizontal meters

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

domain. In normal operation, the VU metering should average about -15 dBFS (-12 dBFS is approximately

equivalent to 0VU in the analog domain). Note that when the Main Menu is selected, the Output Levels

ONLY are displayed on that screen.

Processing Display

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

within the Omnia-4.5fm. The first vertical meter (labeled W) represents the processing activity in the

Wideband AGC section. The two vertical "AGC" meters show the processing activity in the low and high

band AGC sections. 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, when that function has been activated.

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 for more information on

interpreting and using the processing bargraph displays.

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Main Menu Display

The Omnia-4.5fm Main Menu is

displayed in the Menu Display

mode of the LCD screen, and

offers seven menu selections:

Preset, Schedule, Process,

Encode, Input, Output, System.

Below the Main Menu in the lower

left corner of the display is a

multipurpose "Help Text" box.

The Omnia-4.5fm menu system

has been designed to be intuitive

and simple to use, with a minimum

of layered submenus. Most

operating parameters are found

under one of the seven main

menus. This allows multiple

processing changes to be made

quickly and with relative ease.

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.

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 below). 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.

Preset Submenu

"Home Icon"

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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 button. 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

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AGC Mixer Screen shown as example

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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