Omnia-audio Omnia.ONE User Manual

Omnia.ONE Stereo Audio Processor Installation and Operation Manual Revised: June 2013 Applicable to All Software Styles Software Version 2.6

viii 9. Navigate to the Input/Output / Output / AM Options submenu and ensure that the Output Polarities, LPF Frequency, Asym Mod and Tilt (normall

81 Multicast/DAB Style In the Multicast, there are two groups of factory presets, Music and Talk. Within each group, there are presets for each of f

82 Preset Omnia.ONE is equipped with a selection of factory presets that can be used to instantly configure the processing for common applications.

83 If instead, you wish to save your changes as a new user preset with a different name, click the jog wheel while “Name” is highlighted and the edi

84 Adjust Processing This submenu allows changes to be made in any of the Omnia.ONE’s several dozen processing parameters. These adjustments alter

85 The release control adjusts how fast the AGC recovers from periods of more gain reduction when the input audio levels fall. Faster releas

86 Xover (Crossover) The crossover splits the audio signal into 4 independent bands to enable optimum processing for the bass (L), midrange (M), pr

87 Low Band AGC Attack The attack control adjusts how fast the AGC responds to sudden increases in audio level, and higher numbers equate to faster

88 Low Band Limiter LFLim Drv (Low Frequency Limiter Drive) Adjusts the drive level to the individual Limiter band. Used when you desire more or

89 High Band Limiter See description of settings for Low Band Limiter Bass Clipper The Bass Clipper operates between the output of the Low Band

90 Mid Band Adjusts the output level of the mid band limiter into the following Final Limiter stage. Higher numbers result in more midrange but too

ix Omnia.ONE Multicast / DAB / Studio Pro Quick-Start Setup We know that you’re probably in a hurry to begin using your new Omnia.ONE. If you have t

91 Final Limit The Omnia.ONE Multicast employs a final look-ahead limiter to provide absolute precision peak control. This limiter has been designed

92 1 The Nyquist Theorem states that the maximum frequency that may be applied to a sampled data system is one half the sampling frequency. When si

93 Input There are eleven controls under the heading “Input” and each will be explained in the order in which they appear in the menu: <-Exit

94 Right Trim Allows a +/-3dB adjustment of the right Livewire audio channel gain to correct minor left/right balance problems in the input audio. Th

95 Output There are seven controls and the “FM Options” (FM Style Only) or “AM Options” (AM Style Only) submenus under the heading “Output” and each

96 output gain is not affected by this control and is set using the master LW Level control previously described. <-Exit Click on this option

97 found, click. This will return the cursor to “select” mode and you can again turn the knob to select the next character to edit. -To delete a cha

98 Network Configuration Allows customization of the network interface configuration. Available parameters are: IP (IP Address)

99 When you are finished and the new password is complete, do not click again to display the editing cursor. Instead, rotate the jog wheel to highli

100 Studio Pro Style Here is a block diagram of the fully digital, DSP based processing stages within the Omnia.ONE Studio Pro: Preset Omnia.ONE

x 9. Navigate back to the Main Menu, highlight Preset: and click. Rotate the jog wheel to display the preset you would like to start with and click

101 Using the Delete Preset and Rename Preset options, existing user presets may be deleted from memory or renamed as needed. The original factory pr

102 AGC Att (AGC Attack) The attack control adjusts how fast the AGC responds to sudden increases in audio level, and higher numbers eq

103 with larger speakers, the effect of Phat Bass becomes subtler because the extended frequency response of those systems allows the fundamentals of

104 consistent. Be careful though because too much compression can cause the program material to sound less natural and cause low-level noise in the

105 <-Exit Click on this option to return to the Adjust Processing submenu. Mid Band AGC See description of settings for Low Band AGC Pres

106 Lim Thresh (Limiter Threshold) This control adjusts the threshold level of where limiting begins. Lower settings will increase the amount of limi

107 Tight Clip When “ON”, this Bass Clipper style is a straightforward hard limiter that will create a deep, sub-harmonic effect to the audio. The d

108 because the harmonics generated from the clipping action create added artifacts and workload in the encoder. These are especially annoying at hig

109 Input Src (Input Source) Allows the selection of Analog, AES/EBU (digital) or Livewire as the primary input source to the Omnia.ONE. Fover Time

110 [None] – No Channel inversion is performed (factory default) [Both] – Both left and right channel phase is inverted. “Both” is t

xi Table Of Contents Welcome to Omnia.ONE! ...

111 Anlg Level (Analog Level) Adjusts the master audio Output level for the analog outputs which appear on the rear panel XLR male connectors. This c

112 Livewire Disable Livewire When clicked on, gives the option to disable Livewire. This is needed if you will be connecting the Omnia’s Ethernet

113 When you are finished, simply rotate the knob clockwise with the cursor in “select” mode until the Save button is highlighted and click to save t

114 Subnet (Subnet Mask) Accepts data in the form of four octets to describe the Ipv4 network subnet mask of the Omnia.ONE’s network in

115 <-Exit Click on this option to return to the Main Menu. Lock Front Panel This is a feature that enables you to lock the front panel in o

116

117 Appendix A: Performance Specifications Omnia.ONE FM Note: Discrete I/O measurements have been made in "Bypass" mode (available in the

118 Electronically balanced. Input impedance 10k ohms resistive. Maximum Input Level: +22 dBu. Nominal Input Level: +4dBu, which nets

119 Remote Control Methods: External Modem or 10/100BaseTX Ethernet. --Modem (support not yet available as of software version 2.2): User-supplied Ha

120 Omnia.ONE SG General Audio Specifications Frequency Response: Complies with the standard 50 or 75 microsecond pre-emphasis curve within ± 0.50

xii The Factory Presets ... 13 Increasing Den

121 A/D Conversion: Crystal Semiconductor CS5361, 24 bit 128x over-sampled delta sigma converter with linear-phase anti-aliasing filter. P

122 Ports Used: The defaults are TCP Ports 4545 and 4546 (for control and metering data, respectively). Connectors: Modem port - EMI-suppressed D

123 Omnia.ONE AM Note: Discrete I/O measurements have been made in "Bypass" mode (available in the Input/Output menu). Note: All measur

124 Connector: EMI-suppressed RJ-45 female pinned according to StudioHub+ standards. Transformer isolated, balanced, and floating according to AES

125 Shipping Weight: 12 lbs. / 5.5 kg StudioHub is a registered trademark of Radio Systems. Telos/Omnia Research and Development is constantly w

126 Omnia.ONE Multicast/DAB & Studio Pro As of February 2009 – Version 2.2 Multicast, DAB or Studio Pro Software Note: All measurements made us

127 Digital Sync Input: Output sample rate can be synchronized to the signal present on the

128

129 Appendix B: Troubleshooting/Service/Warranty Operational problems with the Omnia.ONE can sometimes be diagnosed using the RS-232 serial port loc

130 Diagnostics and Error Messages To run a system diagnostics check of the Omnia.ONE unit that can be used by Telos/Omnia Customer Support personne

xiii SG Style ...50 Ste

131 Electrical and mechanical safety note! When the Omnia is operated with its chassis top cover removed, you are exposed to potentially lethal volt

132 Obtaining Service • Before contacting Omnia Customer Support, please have the serial number of the unit (located on a barcode sticker on the re

133 Warranty This Warranty covers "the Products," which are defined as the various audio equipment, parts, software and accessories m

134

135 Appendix C: Remote Control and Software Update Procedure Remote Control The above screenshot shows the Processing screen of the Omnia.ONE’s

136 Once Java is installed on your computer, using a Web browser, connect to the IP address of your Omnia.ONE as follows: (see Network Configuration

137 There are 6 “tabs” in the FM style Remote Control applet: Preset, Processing, In, Out, IO and Encode. Preset Tab To enter the Preset menu, clic

138 Each block is a button that can be clicked to open a new applet window containing the controls for that processing block. Any number of processi

139 Out Tab Clicking on the “Out” tab at the top of the applet window will display all of the controls for the Omnia.ONE’s Output menu in the main a

140 Livewire Configuration of the Omnia.ONE’s Livewire port is accomplished in the Livewire menu. Click on the “Livewire” link option from the top m

xiv Warranty ...133 Appendix

141 File Transfer The File Transfer menu allows you to save and load User Presets and I/O Configurations to and from your computer. From the top me

142 So, after uploading a preset to the unit from the remote, simply save any preset as a new name, rename a preset or delete a preset using the fron

143 Software Update Procedure Software updates for the Omnia.ONE are performed over an Ethernet connection using any standard Web Browser and an upd

144 6. Click the “Browse” button, locate the software update file downloaded and saved to your computer in Step 1, double-click it so that it appear

145 9. Scroll down the Configuration page to find the “Select Software Bank:” section: In this example, the new software has been uploaded to Ban

146

147 Appendix D: GPI using the “INTERFACE” connector (New in Version 2.6) Pin 1: +5VDC Out Pin 2: In COM+ Pin 3: IN 1: Trigger input #1 Pin 4: IN

148 The Omnia ONE offers the ability to control several functions by means of trigger events (a trigger event is either a physical contact closure or

149 The following 4 GPO ports are permanently defined. Their function cannot be changed. GPO 1 -- reserved (because ONE has no physical GPO)

150 primary input to analog will cause "GPI 2 Lxxxx" (where "x" is replaced by "h" or "l" depending on the pr

xv 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 produ

xvi HAZARD / WARNING LABELS The Exclamation Point symbol, within an equilateral triangle, alerts the user to the presence of important operating an

xvii LITHIUM BATTERY CAUTION – There is a danger of explosion if the internal battery is replaced incorrectly or shorted. Replace the battery only wi

1 Chapter-1: Installation Pre-Installation Tasks Please take a few minutes to read through this chapter before proceeding with the installation. T

2 Installation & Connections Rack Mounting & Grounding The Omnia.ONE requires one RU (1.75" [44.45 mm]) of rack space. Rack mount the

3 Rear Panel Connections Analog Audio Inputs and Outputs Balanced XLR-type connectors are used for the analog audio. Both analog and digital inpu

4 output impedance to either 5 ohms (the factory setting) or 75 ohms. The default setting is appropriate for the vast majority of exciter connections

5 Ethernet / Livewire Connection The RJ-45 10BaseT / 100BaseT Ethernet / Livewire I/O jack can be used simultaneously for both TCP/IP based remote c

6 General Purpose Interface (GPI) (DB-9F)* This DB9-female connector serves as a four-input, optoisolated interface to the Omnia's internal GPI

7 Chapter-2: Getting To Know Your Omnia.ONE The Omnia.ONE User Interface Now that your Omnia.ONE is rack-mounted, connected to a program audio sour

8 Audio I/O Level Display Either input or output levels can be displayed on the top 2 (L & R) meters. The highest LED illuminated indicates digi

9 Important Notes: • A solid white bar will drop downward from the top to display the amount of gain reduction in each processing band. The change

10 Using the Jog Wheel The main user control for the Omnia.ONE is the easy to use jog wheel with its integral push-switch. Using the control is both

i Welcome to Omnia.ONE! What’s New? New in software version 2.6 (for the FM style only) is an optional fifth limiter band! The High Band AGC output

11 User Interface Tutorial – Input Source Selection and Peak Level Setting The following two exercises are a useful introduction to the user interfa

12 relative to the gain setting of the left channel.  To return to the top level of the Main Menu, rotate the jog-wheel to highlight <-Exit and c

13 Chapter-3: Getting the Sound You Want This chapter is divided into four sections, one each for the 4 different Omnia.ONE processing styles, begin

14 If you believe that you’re in a loudness war and you feel a need to react, we can provide some suggestions that should help. Conversely, if you ha

15 2. Modify the Multiband Limiter sections:  Increase the Drive to the Limiter section.  Increase the Release settings to make the bands operat

16 All three options will provide noticeable change in EQ. We suggest you use the first two listed options. In either case, an EQ change is still f

17 If you notice a sudden jump to 100 percent without being able to first get to 97, 98 or 99 percent then you are experiencing "cliff effect.&q

18 The Omnia.ONE AM is definitely capable of generating moment-to-moment loudness; it has the muscle. It also maintains that famous Omnia clarity sou

19 1. Alter the following parameters in the AGC: a. Increase the Drive to the AGC sections. b. Increase the Release settings to make the bands ope

20 1. The relative drive settings in the multiband AGC Xover menu. 2. The relative Drive settings in the individual multiband Limiter menus. 3

ii

21 Sensus Technology: Audio Processingx3 Overview Until now, digital signal processing has been a more precise numeric implementation of well-know

22 the more multicast channels there are, the lower the bitrate each channel must have in order for them to all fit within the total available bandwi

23 If you believe that you’re in a density war and you feel a need to react, we can provide some suggestions that should help. Conversely, if you ha

24 Increasing Density/Loudness Try to resist the temptation to crank up the aggressive processing sections. They will definitely add loudness but us

25 2. Back off on the influence of the Limiter stages: • Reduce the amount of Drive. • Lower the Release settings in each band to slow down recov

26 Just as in the section on ‘overdoing’ processing, again moderation is the key. If all of the above changes are made in unison there is a possibili

27 Equalization (EQ) Changes Tailoring the shape of the overall audio spectrum can be done in four different ways:  Adjusting the Drive to the in

28 Bypass: This preset bypasses ALL processing and should be used for test purposes only or as a convenient way to listen to the unmodified source au

29 Chapter-4: Main Menu Selections This section presents a detailed overview of the Main Menu items for each of the 5 styles, their submenus (if any

30 More information on each of these processing stages can be found below in the descriptions for each processing parameter control. Increasing any

iii Omnia.ONE FM Quick-Start Setup We know that you’re probably in a hurry to begin using your new Omnia.ONE FM. If you have technical expertise and

31 Save Preset This option saves any changes you have made to the currently running preset into the Omnia.ONE’s non-volatile memory. Changes can be

32 Rename Preset A preset in the list of stored user presets can be renamed at any time. Factory presets cannot be renamed. To rename a user preset

33 AGC Drv (AGC Drive) This control adjusts the amount of drive to the wideband AGC stage. Increasing the drive causes deeper compression to be achie

34 reduction in the lower AGC bands and may cause muddiness with certain program material. A little goes a long way. Warmth This Warm Bass EQ is a s

35 OV Lim Drv (Overall Limiter Drive) Adjusts the overall amount of drive to all four bands of the multiband Limiter section simultaneously ove

36 Pres Band AGC (Presence Band AGC) See description of settings for Low Band AGC High Band AGC See description of settings for Low Band

37 As the limiter threshold is lowered, (made more negative) the peak output level of the limiter is reduced. The signal in that band won't hit

38 amount of perceived bass in the program material. Be careful! Too much clipping by the Bass Clipper can soften bass 'punch'. It may also

39 Presence Band Adjusts the output level of the presence band limiter into the following Final Limiter stage. Higher numbers result in more pres

40 baseband signal up to 53kHz, except for the 19kHz pilot. No matter how hard you drive the composite clipper, you cannot clip the stereo pilot. Emb

iv 9. If you are using the Omnia’s built-in stereo generator, navigate to the Input/Output / Stereo Generator menu and adjust the appropriate compo

41 Source (above) will always be the Primary audio input. A source selected under Failover Source will always be the secondary source. Anlg Level (A

42 Mono Mode Allows input signal routing to be reconfigured as follows: [STEREO] - Factory default. Left and Right input channels are routed to the

43 Right Trim Allows a +/-3dB adjustment of the right digital audio channel gain to correct minor left/right balance problems in equipment following

44 [Ana De-emp] (Analog De-emphasis) This control sets the De-emphasis for the analog XLR outputs. It does not affect the headphone jack output

45 Stereo Generator SCA Input Gain (Control On Rear Panel) The SCA Input Gain control is an analog trimpot and does not appear in the menu. This

46 much cleaner overall signal with better penetration and coverage. The Omnia.ONE FM defaults to a setting of Stereo, using the full L-R signal. We

47 -To delete a character... Select the character to be deleted, click, choose the " < " symbol and click again to delete that character

48 Contrast Adjusts the contrast of the front panel LCD display to optimize it for various viewing angles. Network Configuration Allows cu

49 first, and then through the lower case English alphabet. In-between is a blank space with an underscore character. Once the desired character is

50 SG Style The Omnia ONE SG style is designed to accept the output of an external FM audio processor either directly or through a linear digital ST

v Omnia.ONE.SG Quick-Start Setup We know that you’re probably in a hurry to begin using your new Omnia.ONE.SG. If you have technical expertise and p

51 [SB Mode] (Sideband Mode - DSB or SSB) The normal setting for the stereo generator is the DSB setting which provides the full double-sideband, su

52 Save SG Config Allows you to save an SG configuration preset that can then be selected using the SG Config: setting at the top of the Stereo Gene

53 [Abs Thresh] (Absolute Threshold) Sets a failover threshold based on the absolute level of the primary input. [Rel Thresh] (Relative Threshold

54 [Mono L+R] - Configures the DSP processing chain to have both the Left and Right internal channels fed from the sum of the Left Channel and Right

55 When On provides a de-empasized AES output suitable for monitoring. Off passes the input signal through without de-emphasis. LW De-emph (Livewire

56 “select” mode will be cancelled. If this happens, simply rotate the knob counter-clockwise until “Name” is highlighted and click to re-enter “sele

57 Administrative About Presents a dialog displaying the Omnia.ONE software style, firmware release version and front panel software version current

58 To change the password highlight “Enter Password” and click. The Name field will be automatically highlighted with <none> displayed. Click a

59 AM Style Here is a block diagram of the fully digital, DSP-based processing stages within the Omnia.ONE AM: The first processing stage is a Wi

60 Preset Omnia.ONE is equipped with a selection of factory presets that can be used to instantly configure the processing for common applications.

vi 8. In the Discrete I/O / Input submenu, adjust the appropriate input Level control until the peak-reading input bargraph meters are just lighting

61 Highlight Save Preset and click. “Name” will be highlighted and the Name field will automatically display the existing preset name. If you wish to

62 <-Exit Click on this option to return to the Main Menu. Adjust Processing This submenu allows changes to be made in any of the Omnia.ONE

63 AGC Att (AGC Attack) The attack control adjusts how fast the AGC responds to sudden increases in audio level, and higher numbers equate to faster

64 is unable to reproduce. On systems with larger speakers, the effect of Phat Bass becomes subtler because the extended frequency response of thos

65 Pres Drive Adjusts the amount of gain reduction in the Presence Band AGC. Higher numbers result in more drive and because of the increased compres

66 Gt Thresh (Gate Threshold) When the input audio falls below a certain level, the gain control action of the AGC stage is “frozen” by the gate. Th

67 LFLim Rls (Low Frequency Limiter Release) The release control adjusts how fast the limiter recovers from periods of more gain reduction when the

68 Mid Band Limiter See description of settings for Low Band Limiter Presence Band Limiter See description of settings for Low Band Limite

69 especially when using the “Tight” Bass Clipper style, the filtering can help reduce distortion or artifacts and can provide a “rounder” and smooth

70 We suggest that each time you try a new factory preset, you adjust the Clip Drive as follows: Starting with the default setting for a preset, adju

vii Omnia.ONE AM Quick-Start Setup We know that you’re probably in a hurry to begin using your new Omnia.ONE. If you have technical expertise and pr

71 Failover Time is a feature that when set to a value other than zero (disabled) allows the Omnia.ONE to automatically select another input source i

72 should. The goal is to make the relative phase of the headphone feed more in phase with the announcer’s own bone conduction. Once set, this settin

73 affected by this control and is set using the master Analog Level control previously described. AES Level (AES/EBU Level) Adjusts the master audi

74 [AES A Pol] (AES/EBU Digital Output Polarity for the Left Channel) [AES B Pol] (AES/EBU Digital Output Polarity for the Right Channel) [LW

75 transmitters. Particularly in plate modulated AM transmitters, interstage audio coupling transformers, interstage coupling capacitors, the modulat

76 9. After optimizing the Tilt controls for your particular transmitter, the Tilt adjustment is complete. Normal programming may be applied and the

77 <-Exit Click on this option to return to the Input/Output menu. Livewire Disable Livewire When clicked on, gives the option to disable L

78 -To insert a character between 2 existing characters... Select the character just after where the new character is to be inserted, click, choose t

79 IP (IP Address) Accepts data in the form of four octets to describe the Ipv4 network address assigned to the Omnia.ONE’s n

80 If you wish to cancel without saving the new password, rotate the jog wheel to highlight “Cancel”, click to accept and the operation will be canc