Omnia Audio OMNIA-4.5 AM Operating Manual

OMNIA – 4.5AM

Broadcast Audio Processor

Installation and Operation Manual

Version 1.00a

July 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

Installation Tips

Tech Bulletins and Papers

Tech Support – Software Upgrades

Warranty

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

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

Thank you for selecting the incredible Omnia 4.5AM Audio Processor. Your continued patronage
and support are appreciated.

Sincerely,

Team Omnia

June, 2002

Greetings!

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

Beyond the extensive laboratory development and testing of Omnia-4.5AM, 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-

4.5AM. As you’re reading this, Omnia-4.5AM is already on-the-air at quite a number of legendary 50KW AM radio
stations! You can now add yourself to the list of those who’ve reset the standard for AM processing!

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-

4.5AM. 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-4.5AM 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 4.5AM 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
Ethernet Connection 5
RS-232 Connection 5
Interface Connection 5
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

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

Output 27

Peak Output Level 27
Asymmetrical Modulation 27
Low Frequency Tilt EQ 27
Low Pass Filter Options 30
Output Sample Rate 30
Output Polarity Selection 31

Schedule 31

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

System 32

Port Baud 32
Security Lev(el) 33
Backlight 33
Set Time 33
Set Date 33
About 33
Change Password 34
Lock Unit 34
Resetting Passwords 34
Load Defaults 34
Load From Card 35
Save To Card 35
Reboot System 35

Network 36

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

3-THE OMNIA-4.5AM AND AUDIO
PROCESSING

About Factory Presets 50

Loading a Preset 51
Parameter Editing 52

Adjusting the Wideband AGC 53
Adjusting the Crossover Section 54
Adjusting MB AGC Drive Levels 55
Adjusting Multiband AGC's 55
Adjusting the AGC Mixer 56
Adjusting The Enhancers 57
Adjusting the Limiters Crossover 58
Adjusting the Multiband Limters 59
Adjusting the Final Mixer (Lim Mix) 60
Adjusting the Clippers 61

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

4- PROCESSOR INTERFACING

Processor Location 43

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

Omnia-4.5AM Connections 44

5-FINE TUNING YOUR SOUND

About Loudness and Listener Fatigue 46

Clarifying your Processing Objectives 46

Adjustment Procedure 47

Saving, Naming, and Deleting Presets 62

Saving Presets 62
Renaming and Deleting Presets 63

Getting the Sound You Want 63

A Word About Loudness 63
Quality versus Loudness 64
Increasing Loudness 64
Adding More "Detail" to the sound 65
Making Sound Equalization Changes 66

Thunder Bass 66

6 – Remote Control Software

Software Installation Options 68

Using the Self-Installer 68
Using the raw executable 69
Setup and Configuration 69

Finding the software version number 70

Edit Connection dialog box 71

Using the optional modem 72
Using your own modem 72
Using a Direct Serial Connection 73
Connecting via Modem 73

Custom modem initialization strings 74

Using an Ethernet based connection 76

Establishing a Remote Session 77

Terminal Programs/Direct Connection 78

Meter Displays 48

AGC Metering 48
Limiter Metering 48

Interpreting the Meters 49

Trigger Script Editor 79

Dry Contact Closures 79
Applying Control Voltages 79

Use of Trigger Scripts 80

Paras and Sysparas 81

Using the Trigger Script Editor 81

Script Command Definitions 83

Dayparts 83
Presets 83
Non-system Parameters 84
System Parameters 85
Setting New Syspara Values 85

Using the Script Editor 86

Interface Connector 86
"One Way" Scripts 87

Scripting via Daypart Scheduler 88

7 – Troubleshooting

Rear panel serial port setup 90

Normal boot up message 91

Audio Failure Alarm 92
Audio Restoration Alarm 92

Diagnostic Messages 93

Clearing corrupted NVRAM 94

Diagnosing abnormal boot behavior 96

Narrowing down problems 97

Performing software upgrades 99

Location of PC Memory Cards 100

Obtaining Service 101

Preset Parameter Worksheet 102

Appendix A

CE Declaration of Conformity

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.

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.

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.

• 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

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 4.5AM Specifications

As of June 2002

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

Complies with the optional NRSC emphasis curve
within ± 0.50 dB, 30 Hz to 10 kHz.

System Signal to Noise Ratio

> -80 dB de-emphasized, 20 Hz –- 10 kHz NRSC bandwidth, referenced to 100%
modulation). The measured noise floor is highly dependent upon the setting of
the Input and Output Gain controls. The Omnia4.5'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 Omnia4.5 DSP chain is well in excess of 120 dB. Typical SNR using the
"FactTest2" preset is greater than –80dB RMS in a 10 kHz NRSC bandwidth,
referenced to 100% modulation.

System Distortion

Less than 0.01% THD, 20 Hz – 5 kHz. (second order harmonic
distortion above 5 kHz is not relevant in the AM system due to the
removal of harmonics by the system's 10 kHz low pass filter)

System Stereo Separation

Greater than 65 dB, 20 Hz –- 10 kHz; greater than 70 dB typical.

Analog I/O

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".

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.

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 4.5AM 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 4.5AM Rear Panel View

1. Install the Omnia 4.5AM 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 proper modulation level as measured on a modulation monitor.

You're now ready to go on the air!

Note that the Omnia 4.5AM 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!

Omnia 4.5 Use and Installation Guide – Ver 1.00a

Analog Audio Output

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

symmetrical.

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.

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.

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.

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

Overvoltage and short circuit protected. Meets EN55022, EN55011

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.

Environmental

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

Humidity: 0-95% Relative Humidity, 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: 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.

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

Enabling the Optional Stereo Enhancer Algorithm

The Omnia-4.5AM 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! Alternately, you can supply us with a future date that you wish to
install the option, and we can provide a key for that date.

Chapter 1 – Pre-installation

We believe that the Omnia-4.5AM 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-4.5AM processor. Note that there are

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

Omnia-4.5AM Components

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

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

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

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

1

➤ Omnia-4.5AM 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-4.5AM, or even plugging in the power cord, make sure the Omnia-4.5AM 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 press the cards into the slots 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.

Omnia 4.5 Use and Installation Guide – Version 1.00a

1

2

Rear Panel Expansion Card Slots

The Omnia-4.5AM 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-4.5AM 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-4.5AM 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-4.5AM 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 Omnia-4.5-AM unit.

2

Omnia 4.5 Use and Installation Guide – Version 1.00a

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.

3

Omnia 4.5 Rack Mounting Requirements

Rack Mounting

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

AC Connection (IEC)

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

just above the IEC power cord receptacle. The Omnia-4.5AM'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 Omnia-4.5AM 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

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

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

Omnia 4.5 Use and Installation Guide – Version 1.00a

3

4

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-4.5AM) 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-4.5AM 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.

4

Omnia 4.5 Use and Installation Guide – Version 1.00a

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)

5

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,

Omnia-4.5AM 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 male end being attached to the Omnia-4.5AM.

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-4.5AM’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-4.5AM in response to these input logic

Omnia 4.5 Use and Installation Guide – Version 1.00a

5

6

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 --- circuit 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

6

Omnia 4.5 Use and Installation Guide – Version 1.00a

Powering Up

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

it should appear as:

7

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 customer-defined network parameters:

After approximately ten seconds from power on, audio will be present from the analog, composite and headphone

outputs. The AES/EBU output also becomes usable at this time, however full initialization of the port to the user-

selected sample rate is not complete for several more seconds. After 25 to 30 seconds, the Main Menu display will

appear on the front panel display. At this point, the Omnia 4.5 is fully operational.

Omnia 4.5 Use and Installation Guide – Version 1.00a

7

8

This page intentionally left blank to maintain pagination

8

Omnia 4.5 Use and Installation Guide – Version 1.00a

Chapter 2

The Omnia 4.5 User Interface

Now that your Omnia 4.5 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-4.5AM processor.

The User Interface

A front panel jog wheel and an Active-Marrix Color LCD make up the Omnia 4.5AM Graphical User
Interface. The display screen acts as both a “Menu Display”, showing the menus, submenus and user­adjustable 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.

9

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-defined 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.

Omnia 4.5 Use and Installation Guide – Ver 1.00a

9

10

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 both 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.

10

Omnia 4.5 Use and Installation Guide – Ver 1.00a

Level Meters & Processing Bargraphs

Omnia 4.5 "Metering" Screen

11

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-4.5AM. 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.

Omnia 4.5 Use and Installation Guide – Ver 1.00a

11

12

Main Menu Display

The Omnia-4.5AM Main Menu is displayed in

the Menu Display mode of the LCD screen, and

offers seven menu selections: Preset, Schedule,

Process, Input, Output, System. Below the Main

Menu in the lower left corner of the display is a

multipurpose "Help Text" box.

The Omnia-4.5AM 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.

Preset Submenu

"Home Icon"

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.

12

Omnia 4.5 Use and Installation Guide – Ver 1.00a

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

13

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.

Omnia 4.5 Use and Installation Guide – Ver 1.00a

13

14

Remote Control Session via Network Indicator

A yellow exclamation mark in a red

triangle will show up in the lower left

corner just above the help text box

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.

Note: No front panel indication is

shown when a serial or modem based

remote control session is in progress!

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

active. There is no front panel indication shown when a serial or modem based remote

control session is in progress.

Headphone Level Control

A front-panel stereo headphone jack 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 D to A converter as the analog

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

Level controls in the Output Menu.

14

Omnia 4.5 Use and Installation Guide – Ver 1.00a