Omnia -6EX / EXi Installation And Operation Manual
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Omnia -6EX / EXi Installation And Operation Manual

Hd+fm broadcast audio processor
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Omnia-6
Broadcast Audio Processor
Installation and Operation Manual
Version 1.4 / June 2005
Applicable to Omnia-6 FM / HDFM /
With v7.1.0 Release Software and Higher
Omnia ● 2101 Superior Avenue Cleveland, Ohio 44114 USA
TEL: +1 216.241.7225 ● FAX: +1 216.241.4103 ● Email:
Omnia Europe ● Johannistrabe 6 D-85354 Freising Germany
TEL: +49 8161 42467 ● FAX +49 8161 42402 ● Email:
EX and Exi Models
A Telos Company
info@omniaaudio.com
europe@omniaaudio.com
EX / EXi
HD + FM
www.omniaaudio.com
www.omniaaudio.com

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Summary of Contents for Omnia Omnia-6EX / EXi

  • Page 1 Omnia-6 EX / EXi HD + FM Broadcast Audio Processor Installation and Operation Manual Version 1.4 / June 2005 Applicable to Omnia-6 FM / HDFM / EX and Exi Models With v7.1.0 Release Software and Higher A Telos Company Omnia ● 2101 Superior Avenue Cleveland, Ohio 44114 USA TEL: +1 216.241.7225 ●...

  • Page 2: Greetings

    August, 2003 Greetings! It is with great pleasure to offer you our latest audio processor, Omnia-6EX! 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.

  • Page 3: Safety Instructions

    S A F E T Y I N S T R U C T I O N S Read All Instructions. All safety and operating could result in a fire or electric shock. Never spill liquid instructions must be read before operating the product. of any kind into the product.

  • Page 4: Hazard / Warning Labels

    HAZARD / WARNING LABELS The Exclamation Point The Lightning Flash With symbol within an equilateral Arrowhead symbol, within an triangle alerts the user to the equilateral triangle, alerts the user presence of important to the presence of un-insulated operating and maintenance dangerous voltage within the (servicing) instructions in product's enclosure that may be of...
  • Page 5 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.

  • Page 6: Notices

    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.

  • Page 7: Specifications

    Omnia 6 Performance Specifications As of October 2003 – Version 7.0.0 Software Note: All measurements made with the supplied “FACT TEST2” preset, which is available in the Preset Menu. System Signal to Noise: The measured noise floor will depend upon the settings of the Input and Output Gain controls.
  • Page 8 Stereo Separation: > 65 dB, 30 Hz – 15 kHz. Linear Crosstalk: > -80 dB, main to sub or sub to main channel (referenced to 100% modulation). Non-linear Crosstalk: > -80 dB, main to sub or sub to main channel (referenced to 100% modulation).
  • Page 9 Digital Audio Input: Configuration: Stereo per AES/EBU standard, CS8420 Digital Audio Transceiver with 24 bit resolution, software selection of stereo, mono from left, mono from right or mono from sum. Automatically accepts and locks to input sample rates between 8 and 108 kHz. Connector: XLR-female, EMI-suppressed.
  • Page 10 Remote Interface: Configuration: Eight (8) inputs, RS-232 level-compatible. Software sensing of both 'go-high' and 'go-low' transitions. Inputs are protected to +/- 15 VDC. Connector: EMI suppressed DE-9 male. Control: User-programmable using built-in Trigger Script feature in Omnia 6 Remote Control software. Virtually any parameter of the Omnia 6 may be programmed to change through this interface feature.

  • Page 11: Warranty

    Warranty This Warranty covers “the Products,” which are defined as the various audio equipment, parts, software and accessories manufactured, sold and/or distributed by TLS Corp., d/b/a Omnia (hereinafter “Omnia”). With the exception of software-only items, the Products are warranted to be free from defects in material and workmanship for a period of two years from the date of receipt by the end-user.

  • Page 12: Table Of Contents

    TABLE OF CONTENTS Greetings Menu Overview, continued Safety Instructions Schedule Hazard / Warning Labels System Notices Specifications Menu Selections Warranty Preset Quick Start Setup Guide Preset List Choose (preset) Modify (preset) 1 - INSTALLATION Save Current (preset) Save Current As Omnia-6EX Pre-installation Tasks Compare PC Card and Modem Installation...
  • Page 13 Menu Selections, continued Processor Location, continued System Source Material Quality Port Baud Studio Microphone Processing Security Lev(el) Processor Latency / Time Delay Backlight Operating Levels Set Time Set Date Omnia-6EX Connections About Output Connection Options (FM Mode) Change Password Omnia-6EX Connections, continued Lock Unit Interfacing with a Digital STL/ Exciter Reset Passwords to Defaults...
  • Page 14 Getting the Sound You Want, continued Using the Script Editor, continued Increasing Loudness Creating a Trigger Script Adding More “Detail” to the sound Example: Switch to Mono Making Sound Equalization Changes Example: Switch to Stereo Thunder Bass Interface Connector “One Way” Scripts Scripting via Daypart Scheduler 6 - REMOTE CONTROL SOFTWARE 7 - TROUBLESHOOTING...

  • Page 15: Quick Start Setup Guide

    Omnia-6EX Quick-Start Setup Guide We know that you’re probably in a hurry to get on the air with your new Omnia 6. If you have technical expertise and previous knowledge of audio processor setup, using the following Ten-Point Quick-Start list will get you up and running as quickly as possible.

  • Page 16: Omnia-6Ex Pre-Installation Tasks

    Chapter-1: Detailed Pre-Installation Even though we believe the Omnia-6EX is the easiest processor to install in its class, please take a few minutes to read through this chapter before proceeding with the installation. This section offers common procedures for installing your new Omnia-6EX processor. Note that there are additional installation and operation tips presented in Chapter 4 that may pertain to your specific installation.

  • Page 17: Ac Environment Considerations

    The Omnia-6EX also contains a third PC Memory Card slot that is used to load software for the Front Panel. The slot is located under the top cover on the right-hand side of the Front Panel circuit board and is normally un- occupied.

  • Page 18: Installation And Connections

    Installation & Connections Throughout this section reference is made to “software parameters.” These are part of the Graphical User Interface, which is covered in detail in Chapter 2. Rack Mounting The Omnia-6EX 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.

  • Page 19: Audio Inputs

    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-6EX Main Menu is shown on the right screen, and the Meter Screen is shown on the left display, the unit is ready for use. Rear Panel Connections Audio Inputs—Analog &...

  • Page 20: 19 Khz Sync Output

    change the source impedance to 75 ohms. For reference, J10 is for Composite #1, and J13 is for Composite #2. 19 kHz Sync Output (BNC) (FM Mode Only) This TTL-level 19 kHz square wave output can be used as the reference signal for any SCA generator that operates at 57 kHz or other multiple of the 19 kHz pilot frequency.

  • Page 21: Interface Connection

    Interface Connection (DB-9M) This connector is the interface to the Omnia's internal trigger script function. Eight of the pins are “trigger” inputs and the remaining pin is the ground reference. The trigger inputs can be used to dynamically alter the Omnia-6fm’s operation in response to logic signal transitions at the interface connection.

  • Page 22: Powering Up

    Powering Up When the Omnia-6EX is first turned on, there is a few seconds of delay as the system starts up. You should notice a rectangular flashing cursor on the right screen followed by revolving Omnia logos on both screens, and then the main metering and menu screens should appear.

  • Page 23: The Omnia-6 User Interface

    Chapter-2: The Omnia 6 User Interface Now that your Omnia-6EX 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-6EX processor.

  • Page 24: Using The Jog Wheel

    Using the Jog Wheel The main user control for the Omnia-6EX 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-6EX. 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.

  • Page 25: Level Meters And Processing Bargraphs

    Level Meters & Processing Bargraphs The horizontal meters show digital, sample-accurate, peak representations of the left and right input and output levels, while the vertical bargraphs show processing activity of the various algorithms. The currently selected Preset Name is displayed is the bottom left corner of the Meter Display, the currently entered IP address in the center and the...

  • Page 26: Main Menu Display

    Main Menu Display The Omnia-6EX Main Menu is displayed on the right hand LCD screen, and offers seven menu selections: Preset, Schedule, Process, Encode, Input, Output and System. Below the Main Menu in the lower left corner of the display is a multipurpose “Help Text”...

  • Page 27: X" Close Window Icon

    In all menus 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 menu, 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 menu, one level above.

  • Page 28: Remote Control Via Network Indicator

    Remote Control Session via Network Indicator An exclamation mark inside a yellow triangle will show up in the lower left corner of the Main Menu screen when a Network remote session is in progress. A remotely connected network session has priority over local control of the front panel, so during a Network remote session the Main Menu will be grayed out.

  • Page 29: User Interface Tutorial

    User Interface Tutorial – Input Source Selection and Peak Input Level Setting The following two exercises are a useful introduction to the user interface. Start from the Main Menu (as displayed when the unit is first turned on). The first exercise changes a parameter selection (the Input Source selection): 1.
  • Page 30 The next exercise adjusts a parameter that uses a value. (Input Gain) This also serves as a tutorial on setting the proper input levels for optimum performance: For complete information on the controls in the Input Menu, see Pgs. 37-38. 1.

  • Page 31: Menu Overview

    Menu Overview This section presents an overview of the seven menus (Preset, Process, Input, Output, Encode, Schedule and System) and their parameters. The Menu Selections section, starting on Page 34, gives in-depth descriptions and usage instructions for each menu item and parameter selection. Preset Omnia-6EX is equipped with numerous factory presets that can be used to instantly configure the processing for common applications.

  • Page 32: Input & Output Menus

    Input & Output Menus Input Menu Output Menu These two menus provide level adjustments for the left and right inputs and the absolute peak operating level of the outputs. Note that the analog and digital Input and Output levels are affected equally by the settings of the Input and Output Gain controls respectively.

  • Page 33: Schedule

    Schedule The Omnia-6 can automatically load presets from the PC Card by date and/or time. The Schedule menu allows the user to enable or disable the Daypart Scheduler function, as well as to create, modify, save and recall custom preset changing schedules.

  • Page 34: Menu Selections

    Menu Selections This section presents detailed information on each menu window item and the parameter choices or value settings that may be available within them. See Chapter 5, “Fine Tuning Your Sound,” for detailed information on editing processing preset parameters to achieve your custom on-air sound. This procedure is used for all parameter selection and editing: 1.

  • Page 35: Modify (Preset)

    Note: The following Factory Presets use lower internal AGC ratios. When switching from any of these (or from User Presets created using any of these) to another preset, there may be a substantial level drop that will recover over a few seconds: ModernRock, CleanNSmooth, HotAC, SoftAC, Country2, Classical2 and Classical 3. Modify Opens the Preset List window so a user preset can be renamed or deleted.

  • Page 36: Passcode

    5. To Lock the preset, go back to the Preset List and click on the “Passcode” button. DO NOT enter a Passcode, just click the Checkmark box. An error message will pop up saying “Incorrect Passcode”. Click the “OK” box, and notice that the preset is now listed as TEST33[L]. Your preset is now [L]ocked and secure.

  • Page 37: Process

    Process This menu is a graphical block-diagram representation of the signal flow through the Omnia-6fm. Each block- diagram icon, when highlighted and clicked, opens up a parameter window that pertains to that part of the Omnia-6EX processing circuitry. See Chapter 5, “Fine Tuning Your Sound”...

  • Page 38: Master Drive

    A message will appear on the screen to warn you that you have selected the Auto mode, and what behavior to expect. If the Hunt feature is also selected, the Omnia audio inputs will be alternately tried at the interval that is set under the “Hunt”...

  • Page 39: High Pass Filter

    2. For both the Digital and Analog inputs, an “Audio failure” is defined as “any audio level remaining at or below -37.5dBFS for at least 7 seconds”. 3. Audio must have actually been ‘detected’ first on an input before the Hunt process can function. Said another way, if the Omnia is sitting on the workbench with no audio applied and the Auto and Hunt options are enabled, nothing will happen.

  • Page 40: Output

    Output Output Menu FM Options Menu There are five settings under this menu item: There are four settings under this menu item: • • Peak Output Level Diversity Delay (Exi Only) • • Set Levels ITU BS-412 Multiplex Power Limiter •...

  • Page 41: Fm Outputs Submenu

    SRC (Sample Rate Converter) board (see Pg. 60). AES-2 can also be locked to whatever the AES-1 Output is set to, as well as synchronized to AES-1 if it is being synchronized by an external AES/EBU source. Outputs Think of this as a simple router. It enables either the FM or HD/DAB output signals to be routed to whichever physical output is desired: the Analog, AES-1, or AES-2 connectors.

  • Page 42: Mpx Power Limiting

    Note 2: The headphone output is automatically appropriately de-emphasized when any value of pre-emphasis is being used. ITU BS-412 Power Limiting In certain parts of the world, the average multiplex signal power must be controlled to reduce adjacent channel interference. The currently enforced standard falls under the ITU BS-412 regulations. The Omnia-6EX has a very effective Multiplex Power Limiter that may be enabled to comply with these regulations.

  • Page 43: Encode

    Encode (FM Mode Only) Seven parameters are set under this menu: • Composite Range • Composite Output 1 • Composite Output 2 • SCA Level • Pilot Injection • Pilot Phase • Stereo Separation Encode Menu Composite Output #1, Output #2 and Range The Output controls individually set the level at the two separately buffered rear-panel composite outputs.

  • Page 44: Separation

    Separation The stereo “sound field” can be reduced by 3 dB or 6 dB to suppress processing-induced multipath that can occur in certain terrain and within certain transmission systems when heavy processing is used. When a setting of -3 dB or -6 dB is used, the amount of L-R (perceived stereo effect) is also reduced.

  • Page 45: Save To Card

    Save to Card Stores the Schedule and daypart information on the Omnia PC Card. You might do this for safety or even for sharing the data with other Omnia-6 processors. It saves all of the currently defined dayparts and the daypart state to the Omnia PC card.

  • Page 46: Backlight

    Omnia-6EX has been locked. The I/O metering continues to function normally, and the currently running Preset Name is replaced by the text “System is Locked”. See the Security Config section below for details. It is advisable to change the passwords once the Omnia-6EX is installed. Passwords are case sensitive and can contain up to ten characters.

  • Page 47: Lock Unit

    Lock Unit Highlight and click to immediately lock the unit. A confirmation dialog will pop up asking you if you are sure you wish to lock the unit. If you click yes, a dialog box is presented for password entry to unlock the unit. Resetting the Omnia 6 Passwords to their Factory Defaults If you do manage to lock yourself out or you have simply forgotten your password, Omnia Technical Support can assist you in unlocking your Omnia-6.

  • Page 48: Ntp

    The “Stealth Mode When Locked” option causes the processing bargraph gain reduction metering to stop and the selected preset name to be hidden from view when the Omnia is locked. The “Enable Auto Lock” option causes the unit to be automatically locked whenever the screen saver activates.

  • Page 49: Network

    Network Opens up a window to set the Ethernet communications protocols. (IP address, default Gateway and Subnet Mask) Important Note: Be sure to click Save Changes before exiting this menu or any changes made will not take effect! There are also options to Reboot Display (front panel only, without affecting the audio) and send a Test Broadcast packet out to the connected network.

  • Page 50: The Omnia-6Ex: Audio Processing Overview

    Chapter-3: The Omnia-6EX: Audio Processing Overview This section presents an overview of the Omnia-6EX processor. Refer to the block diagram shown on the Process menu to provide a functional order to the various processing sections. Full details about all of the individual controls in the Process menu can be found in Chapter 5: “Fine Tuning Your Sound”...

  • Page 51: Wideband Agc

    Wideband AGC: A very flexible wideband leveler section provides smooth, transparent control of the input program. This is achieved through two significant Omnia innovations, a dual referenced release gate and a hidden, intelligent “makeup” gain algorithm. The dual gate reference is a unique process that correlates the dynamics of the audio input signal to a “rolling”...

  • Page 52: Deep Bass Eq

    Deep Bass EQ: For those who demand thunderous bass. Up to 12 dB of “thunder” can be added to shake your listeners’ walls! This is not merely a simple bass EQ, but a sophisticated concept, which considers the time alignment of low frequencies as they pass through the entire system. This allows loud, clean, thunderous low end, with no sacrifice to the overall loudness of your signal.

  • Page 53: Look Ahead Limiter

    Look Ahead Limiter (HD/DAB): The input for this stage comes from the output of the multiband limiters mixer, and it is used instead of the clipping process that the FM output utilizes. Typically, HD Radio and DAB employ data reducing encoders for transmission. Experience has shown that a clipped audio signal generates added coding artifacts due to the harmonic content of a clipper and increased workload on the coder.

  • Page 54: Processor Interfacing

    Chapter-4: Processor Interfacing This chapter presents installation and operation information specific to the Omnia-6EX. A Parameters Worksheet, on Page 121, may be photocopied to record the parameter settings used for specific processing presets. Processor Location Believe or not, this is an important consideration! Where you choose to locate the processor—at the studio or at the transmitter—can have a profound impact on the overall performance and your stations' loudness on the dial.

  • Page 55: Digital Stl Use

    to either AC coupling in the STL system or “bounce” generated by the modulator, demodulator, or PLL of the STL. Sometimes it’s a little of each! If you notice any “grass” exceeding the peak level of the low frequency waveforms, there could be noise or interference getting into the system.

  • Page 56: Processor Latency / Time Delay

    There are many good microphone processors available, including Omnia’s own ToolVox. More information on the Omnia ToolVox Microphone Processor can be found on the Omnia website at http://www.omniaaudio.com. An Important Word About Time Delay A question commonly asked about Omnia-6EX is “How much time delay does it have?” The answer: “Not enough to drive your DJ’s crazy!”...

  • Page 57: Omnia-6Ex Connections

    Omnia-6EX Connections FM Mode (Conventional Channel) Output Connection Options Tests have shown that post-processing audio power in the low frequency region is so strong that it may affect the performance of some exciters. It is imperative that your exciter have a dual speed PLL in the AFC, otherwise it may unlock.

  • Page 58: Pre-Emphasis: Where To Insert

    When using the AES/EBU outputs to drive a digital STL or exciter, your Omnia-6EX’s sampling rates must be set to match the lowest internal operating sampling rate used in any device which follows the Omnia-6 in the audio chain. You will find these options in the Output Menu; available selections are 32kHz, 44.1kHz, 48kHz, and 96kHz. Failure to select the proper digital output sampling rate can result in generation of overshoots.

  • Page 59: Output Connection Options (Hd Mode)

    HD Mode (Digital Channel) Output Connection Options The Output Menu contains a virtual patch bay for assigning the Omnia’s three different outputs to its two main processing chains. Note that the two Composite MPX Outputs are always connected to the conventional FM processing blocks.

  • Page 60: Output Sample Rate Settings

    Sample Rate Select Jumpers (see table 1) Auto-bypass option jumper Jumper S2 causes AES-2 to either be slaved to the sample rate of AES-1 or controlled by S0 and S1. Table 1 - Jumper Setting Options for S0, S1 and S2 Sample Rate Jumper S0 Jumper S1...

  • Page 61: Fine Tuning Your Sound

    Chapter-5: Fine Tuning Your Sound Many broadcasters will be amazed at the dramatic sonic improvements Omnia-6EX delivers right out of the box and using one of the included factory presets. Some will want to tailor one or more of the presets slightly to create a more “custom”...

  • Page 62: Adjustment Procedure

    How much is enough time? We feel that working with a system for at least a week is a good starting point. We don’t suggest that you drop everything for a solid week. What we do recommend is that you install the Omnia-6EX during a week when you can spend a few hours per day on the project.

  • Page 63: Meter Displays

    The Meter Display In addition to the Input and Output Levels display, the Meter Display also provides processing information in the form of vertical bargraphs, which indicate both AGC and Limiter Processing activity. AGC Metering Limiter Metering Omnia-6 Main Metering Screen AGC Metering The bargraphs for the AGC sections can indicate up to 25 dB of gain reduction.

  • Page 64: Interpreting The Meters

    Interpreting the Gain Reduction Meter Displays Through careful observation of the processing bargraphs, significant information can be acquired and analyzed about the audio signal on a moment-by-moment basis. The yellow bar shows the average value of the gain reduction, while the floating ball indicates the peak value of gain reduction. Average value of gain reduction Gain Reduction scale Peak value of gain reduction...

  • Page 65: About Factory Presets

    The intent of the Limiter sections is to control the peak levels. This is accomplished by finding and controlling the highest peak of the audio waveform. The Limiter section's job is to quickly grab the signal, reduce the gain to the proper operating range, and then return the gain to normal until the next peak signal comes along.

  • Page 66: Loading A Preset

    Loading A Preset From the Main Menu, highlight Preset and click the jog-wheel. Main Menu The Preset window is then displayed: Preset Menu Rotate the jog wheel two clicks clockwise to highlight the Choose option. Clicking the jog-wheel once will move the highlighting to the <Exit>...

  • Page 67: Parameter Editing

    Parameter Editing The Omnia-6 system architecture has a great number of audio processing functions and features. The following sections detail the adjustments one can make. Before tackling this section you must be familiar with navigating through the menu system and be comfortable with how the Omnia-6 jog wheel and click functions work.

  • Page 68: Adjusting The Wideband Agc

    Wideband AGC (WB) Wideband AGC Submenu This is the first processing section within the Omnia, so the controls in this section affect the overall signal, its density, and hence affect every other processing section following it. The job of the Wideband AGC is to erase long- term audio level fluctuations, while doing so in a very unobtrusive manner.

  • Page 69: Adjusting Agc Crossovers

    level is reached, is set by the remaining RTP Speed settings (Slow, Medium or Fast). If no RTP gain reduction is desired, use the RTP Speed setting Freeze. Note: The Freeze setting will keep the gain from decreasing when the AGC is gated (moving down on the bargraph meter toward the RTP Level setting) but will not keep it from increasing toward the RTP Level setting when the gate activates at a gain reduction level higher than the RTP Level setting.

  • Page 70: Adjusting Multiband Agc's

    The drive level to each AGC band can be set by the controls at the top of the window. There is +/-6 dB of gain adjustment available for each band. Just as in properly setting a program equalizer, the best sound, consistent with preserving signal headroom is usually obtained by reducing the gain of the louder band(s) rather than increasing the gain of the lower level band(s).

  • Page 71: Adjusting The Agc Mixer

    Use the RTP Speed to set the amount of time it will take the AGC to return to the set platform level. There are four choices: Freeze, Slow, Med, and Fast. The default setting is Freeze. As mentioned previously, the RTP speed is slightly affected by the value of the attack time that is set for that band.

  • Page 72: Adjusting The Enhancers

    Enhance Each of the Deep Bass, Phat Bass and Warmth controls can boost the level up to 12 dB. Be careful here not to overdrive the following limiter sections or over emphasize these lower frequency ranges. When used properly this specialized low frequency enhancement tools can deliver the thunderous bass and warmth that the Omnia is known for, and it can do so without making the sound muddy.

  • Page 73: Adjusting The Limiters Crossover

    Space EFX: The Omnia-6EX contains an intelligent DSP-based stereo enhancement tool that enhances the stereo sound field without causing unnatural “hole in the middle” imaging or exaggerated multipath. Program audio previously lacking in stereo width will have noticeably increased ambiance and dimension when the Space EFX is active.

  • Page 74: Adjusting The Multiband Limiters

    Multiband Limiter Windows The controls in these adjustment windows are similar in function to the previously described AGC stages. However, there are only four controls for the limiters. The Attack and Release controls work similarly to the AGC sections, but are of course much faster on overall action.

  • Page 75: Adjusting The Final Mixer (Lim Mix)

    Final Mixer (Mix) This is the final summing point for each of the multiband limiter sections before the signal reaches the final clipper (FM Mode) or Look Ahead limiter (HD Mode). Limiter Mixer (final mixer) Care should be used when adjusting this section, as too much level from any particular band could cause an excessive amount of clipping distortion or Look Ahead limiting to that range of frequencies.
  • Page 76 Clippers (Clip) (FM Mode Only) Clipper Submenu Bass Clip Threshold: Limiter bands 1 & 2 have their own clipper and time-aligned low-pass filter in order to reduce IM distortion in the main clipper. The Bass Clip Threshold control sets the threshold of the bass clipper referred to the clip level of the main clipper.
  • Page 77 steps until the loudness just drops below the desired level and then bring it up slightly from there. If you have an Omnia-6 Exi with the new LoIMD clipper, this control will interact somewhat with the IMD Tune control whenever the IMD Tune control is set above 0. See the description of the IMD Tune control below for full details. Clipper Silk: This control adjusts the texture of the main clipper when the clipper is handling significant mid and upper midrange program material such as solo electric guitar, etc.
  • Page 78 Omnia-6EX employs a Look Ahead limiter to provide absolute precision peak control for the HD Digital Channel. This limiter has been designed to minimize processing side-affects like IMD, which are usually associated with limiters of this type. Using an innovative design that cancels intermodulation products before they develop allows this limiter to sound extremely transparent.

  • Page 79: Saving, Naming, Deleting And Protecting Presets

    Saving, Renaming, Deleting and Protecting Presets Saving Presets Upon completing a preset editing session, the processing changes should be stored. This way they can be recalled later, or even transferred to another Omnia-6EX. Storing the settings writes them to the PCMCIA memory Card, either by overwriting an existing preset, or by creating a new preset.

  • Page 80: Renaming And Deleting Presets

    wheel. The operation is canceled and the Preset list and menu is again displayed. Note: You cannot save a preset using any of the factory-supplied preset names. A different preset name must be used, using the Save As menu option. The factory presets are read only, and cannot be overwritten. Likewise new user presets cannot be stored with the same name as a factory preset.

  • Page 81: Passcode

    Passcode In order to gain access to a preset that has been protected using the “Protect Preset” utility, the correct passcode for the preset being accessed must be entered into the prompt. Please understand that it is impossible for the factory (or anyone else for that matter) to gain access to an Omnia preset that has been encrypted by the Protect Preset utility.

  • Page 82: Getting The Sound You Want

    Getting the Sound You Want If you believe that you’re in a loudness war and you need to react aggressively, here are some suggestions that should help you achieve that goal. Conversely, if you have the rare luxury to strive for increased sound quality, we have suggestions for you too! Omnia-6 is designed to minimize the impact of the quality vs.

  • Page 83: Increasing Loudness

    The following sections are provided to assist you in designing the personality of your station’s sound. As we said earlier, there is no precise recipe for setting up audio processing. While there are some basic fundamentals that you can use to get started toward the sound that you desire, it may require a concerted effort with extended listening and subtle processing changes over time to achieve your ultimate goal.

  • Page 84: Adding More "Detail" To The Sound

    generate a signal of high short-term density. Also, an increase in clipping will further aid this. The effect of the processing set in this manner is that the audio is consistently loud at all times . . . a wall of sound. The drawback is that the density can cause listener fatigue and have a negative effect on time spent listening.

  • Page 85: Thunder Bass

    Thunder Bass Omnia-6EX has the power to shake the walls with low end! If your source material has it, Omnia-6 will put it on the air, and with muscle! Making changes to this characteristic is done using the following parameters, and for maximum effectiveness, in the order listed: 1.

  • Page 86: Remote Control Software

    Chapter-6: Remote Control Software The Omnia Remote Control software is a Windows (Windows 95, 98, NT 4.0, Win2k) software program that allows remote access to the Omnia-6EX processor adjustment using any PC running the aforementioned versions of © Microsoft Windows .

  • Page 87: Setup And Configuration

    Setting Up and Configuring Omnia Remote Control The Remote Control Program for the Omnia-6EX is specific to the Omnia-6EX. As stated earlier, Omnia Remote Control programs designed for our other Omnia family of products will not work with Omnia 6. The latest versions of all Omnia remote control programs are always available free of charge through the “Support”...

  • Page 88: Edit Connection Dialog Box

    The Edit Connection Dialog Box Under the Options Menu, select “Edit Connection”. A new window will open, and a default “New Connection” option will be displayed. Enter required information into each of the configuration boxes. Edit Connection Menu in Omnia 6 Remote Control In the left side of the “Edit Connection”...

  • Page 89: Using The Optional Modem Card

    If you wish to connect over a network, you must check the box “Connect over Ethernet”. When you do this, the parameters required for direct serial or dial-in via modem will be grayed out. Then, only the TCP/IP address of the Omnia that you wish to connect to must be entered. Note: If you are connecting via Direct Serial or Modem, you should not check the “Connect over Ethernet”...

  • Page 90: Using A Direct Serial Connection

    Using a Direct RS-232 Connection for Local Communications When a computer can be located near the Omnia-6EX, it may be convenient to use a direct serial cable connection rather than dial up. Use a standard, straight-through serial cable - null-modem cables will not work! A typical serial cable will need a DB-25 male connector for the Omnia-6EX end, and probably a DB-9 female connector on the computer end.

  • Page 91: Custom Modem Initialization Strings

    Using a Custom Modem Initialization String A custom Modem Initialization String is sometimes required in order to control the behavior of the modem in special circumstances. While there are many different initialization string possibilities, the most common one modifies how the modem handles dial tone. Sometimes the modem may be connected to a circuit that does not provide the US standard 350/440 Hz dial tone, and in this case, you need to tell the modem to ignore it.
  • Page 92 Where “yyy” is the dialing prefix, and; Where “zzzz” is the dialing suffix. There are many resources on the World Wide Web pertaining to the possible Hayes command set initialization string options. You can locate such resources by using the search text “Hayes Command Set” in your Internet browser.

  • Page 93: Using An Ethernet Based Connection

    Using an Ethernet Network Based Connection For Network connections, check the Connect over Ethernet box and enter the IP address of the Omnia-6EX in the box provided. The TCP/IP address entry format is: xxx.xxx.xxx.xxx. The default TCP/IP address of the Omnia6 is 192.168.0.191.

  • Page 94: Establishing A Remote Session

    Establishing a Remote Connection To establish a connection with the remotely located Omnia-6EX, return to the Options Menu and select Connect, which brings up a list of connections you have defined. Double-click on the name of the desired connection, or highlight it to select it and press OK.

  • Page 95: Terminal Programs/Direct Connection

    NOTE: Even if the optional HD mode features on your Omnia-6 FM unit have not been activated, you will be able to access the Look Ahead Limiter screen from the Omnia-6 remote application’s Process Menu. If, however, any of the Output router settings in the Output Menu are changed to the HD position, they will be reset back to the FM position within sixty seconds.

  • Page 96: Trigger Script Editor

    Trigger Interface and Script Editor Overview of the Trigger Script Editor The Omnia 6 Remote Control software contains a special script editor that allows the programming of complicated system parameter changes which can be “triggered” by logic state changes on the rear-panel “Interface” connector. “Edit Trigger Scripts”...

  • Page 97: Use Of Trigger Scripts

    Some Common Usage of Trigger Scripts • Switch from Stereo to L+R Mono • Switch from L+R Mono to Stereo • Switch the Stereo Pilot off • Switch the Stereo Pilot back on and at 9% injection • Switch the Omnia's audio input source from Analog to Digital •...

  • Page 98: Script Command Definitions

    Click “Save to Card” to permanently store the current scripts on the PC Card in one file. Click “Load from Card” to retrieve previously saved scripts. To download the scripts for use in the processor without saving to the PC Card, click “Apply”...

  • Page 99: Non-System Parameters (Paras)

    rename <preset index #><name> Renames the preset by its index number. Example: rename 21 BOOGY <enter> commands the Omnia-6 to rename preset number 2. save Saves the preset under its current name. Note: Factory presets are permanent and cannot be written over. You must use the ‘saveas’ command when saving changes made to a factory preset in order to save it as a unique name.

  • Page 100: System Parameters (Sysparas)

    Omnia-6EX System Parameters A 'syspara' is an Omnia 6 System parameter. The System Parameters are assigned to controls which govern overall operation, such as Input and Output Gains, Pre-emphasis/De-emphasis, etc. These parameters would NOT be saved with individual presets, but instead are saved using the Save To Card option in the System menu. To obtain a list of all System parameters, you use the command 'sysparas', which lists all of the adjustable parameters in a table format with their current setting value in brackets.

  • Page 101: Creating A Trigger Script

    Creating a Trigger Script Now that the scripting commands have been defined, let’s put them to work to create a Trigger Script. We’ll use one of the most commonly requested operations that FM broadcasters want to easily accomplish: switching between mono and stereo operation.

  • Page 102: Example: Switch To Stereo

    syspara 2 1 <enter> This tells the processor to switch the input to “Stereo.” “syspara 2” says to edit the Mono Mode setting. The “1” says to select stereo mode. When you are finished, the contents of the Trigger HIGH Command Script box should look like: syspara 54 32 syspara 2 1 These four commands are now a completed script for Trigger 1.

  • Page 103: Interface Connector

    Initiating Trigger Scripts via the Interface Connector As we mentioned, trigger scripts give the user the ability to tie a series of commands to a simple high/low logic change occurring on a pin of the 9-pin D-sub Interface connector on the unit’s rear panel. The pins on the Interface connector are assigned as follows: PIN 1 - activates Trigger Script 1 PIN 2 - activates Trigger Script 3...

  • Page 104: Scripting Via Daypart Scheduler

    Another possible use of the one way Trigger Script script capability (although not strongly recommended) is the remote 're-booting' of the Omnia. In that special case, there would be no Go High script entry. The Go Low script for that function would simply read: warmboot Remote re-booting of the unit carries with it several caveats: •...

  • Page 105: Rear Panel Serial Port Setup

    Chapter-7: Troubleshooting your Omnia 6 Operational problems with the Omnia-6 can sometimes be diagnosed using the rear-panel RS-232 port and a common terminal communications program. Detailed information about the Omnia's boot-up progress may be observed at its rear-panel RS-232 port, as well as viewing of any error messages that may be encountered. This chapter explains the various boot up and error messages that may be encountered while troubleshooting the unit.

  • Page 106: Normal Boot Up Message

    Normal Boot-up Message A healthy Omnia-6EX will transmit the following text on the rear panel serial port during boot up: Omnia BIOS Software 1.13 Work : BIOS v1.13... Work: Downloading OS... Work: Downloading OS... Work: Downloading OS... Work: Downloading OS... Work: Downloading OS...

  • Page 107: Audio Failure Alarm

    Audio Failure Alarm If no audio is applied to the Omnia, the following messages will be transmitted next on the RS-232 port, approximately twenty seconds after boot up: Flr : Audio failure: left input Flr : Audio failure: right input Flr : Audio failure: left output Flr : Audio failure: right output In the absence of an audio source, these “Audio failure”...

  • Page 108: Diagnostic & Error Messages

    Diagnostic and Error Messages In the event that you need to contact Telos / Omnia Customer Support for assistance, please see the section entitled Obtaining Service on Page 112 for contact information. The following error messages will appear on the front panel screen: Insufficient Memory! Save As Failed.
  • Page 109 Failed to initialize RTC Description: The operating system could not initialize the Real Time Clock on the motherboard. Cause: The Real Time Clock chip on the motherboard may have failed. Resolution: Contact Telos / Omnia Customer Support for assistance. Dead battery, data lost. Description: The Lithium battery used for system configuration backup is being reported as dead or battery voltage is too low for reliable operation.

  • Page 110: Safety Note

    Electrical and mechanical safety note! When the Omnia is operated with its chassis top cover removed, you are exposed to potentially lethal voltages and high speed rotating fan blades. Before attempting to make voltage measurements, be forewarned that the power supply heat sinks are connected to the AC power line.
  • Page 111 Note: The composite outputs and the discrete left/right outputs are operated from their own specialized Digital to Analog converters. Therefore, it's possible for one type of output to fail without affecting the other. Likewise, a failure in the AES/EBU driver section could result in the digital output being dead, while the rest of the system is operational.

  • Page 112: Obtaining Service

    Obtaining Service • Omnia Customer Support personnel are available in Cleveland, Ohio, USA, Monday through Friday between 9:00 A.M. and 6:00 P.M., Eastern Time. If outside the U.S.A., see below. • Before contacting Omnia Customer Support, please have the serial number of the unit (located on a small barcode sticker on the rear panel in this format: 4700XXYYYY) and a description of the symptoms/problems ready for the technician.

  • Page 113: Ce Declaration Of Conformity

    Omnia-6 Omnia-6ex Use and Operation Manual – V: 1.20...
  • Page 114 Omnia-6ex Use and Operation Manual – V: 1.20...

  • Page 115: Audio Processing Faq (Includes Factory Preset Descriptions)

    Appendix B Audio Processing FAQ… While Chapter 5 was written with the idea to aid in making processing adjustments, we’re still aware that there are other processing configurations that some users desire. The following is a list of Frequently Asked Questions compiled from our Omnia Customer Support database: 1.
  • Page 116 3. Why can’t I adjust the crossover frequencies for the limiter section, when I can for the Multiband AGC? That’s a great question! There are actually two reasons why we designed the system this way. First: Adjusting the frequency distribution in the AGC section will be sonically more perceptible than if we did this in the limiter section.
  • Page 117 located at the transmitter site, and you need something to protect the STL from being over-driven. In those cases, we know that the Aphex Compellor (set for Slow Operation and a Process Balance knob setting of between 10 and 11 o’clock) works extremely well. As of this writing, the only processing function that we don’t yet offer for the Omnia-6 is reverb.
  • Page 118 instead of the default 150Hz.) • Raise the Threshold in the SLF (Band-1) Limiter by 0.5dB to 1.0dB. NOTE: Be careful, while you will notice more low end, some material with extremely deep low frequencies might sound distorted due to more clipping of the added Bass peak levels at the clipper.
  • Page 119 • Classical3: This uses a bit more processing than the Classical 1 preset. Users will find that Classical3 is louder on the air than Classical 1 or 2. Medium and short-term program dynamics remain essentially untouched, while long-term dynamics are modified to substantially increase overall on-air loudness. The overall on-air sound is extremely close to the original source material in spectral balance, with only the long-term dynamic range being reduced to increase on-air loudness.
  • Page 120 • SolarPlexus: Tuned similarly to PhatOne but with additional emphasis on very low bass. • SolidGold: Where were you in the 1970’s when that Boss Jock sound was king!! This preset offers more compression and density which yields good spectral balance. Most OLDIES formats play music that needs help in the warmth and clarity.

  • Page 121: Omnia-6Ex Parameter Worksheet

    Omnia-6EX Parameter Worksheet Preset Name:_______________ By: ______________________________ Date: _____________________ Parameter Value Parameter Value Parameter Value Parameter Value Input Submenu LF-AGC Enhancers Limiters Mixer Input Source Attack Deep Bass Super-Low Band Input Gain Master Release Phat Bass Low Band Right Ch Trim Make-Up Gain Phat Tune Mid-Low Band...

  • Page 122: Software Upgrade Procedures

    Appendix D Front Panel Software Upgrade (user interface) The Omnia-6EX’s front panel software can be updated by downloading new code to it over the Ethernet connection. To use this feature, you must first have the proper front panel software update (.upd) file. This file can be obtained from http://www.omniaaudio.com/support/updates.htm.

  • Page 123: Gnu General Public License

    Portions of the embedded software are distributed under the following terms: GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright © 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it.
  • Page 124 These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works.
  • Page 125 Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and “any later version”, you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation.

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