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Loudness Meters

ITU-R BS.1770 loudness meters and graphs can be displayed from this menu.

•

The “Loudness Meters” display shows a bar graph and a numeric LKFS loudness
value for both the audio input levels and the MPX output.

•

The “Short Term Loudness” graph can show recent loudness measurements over

time; the exact length of time will vary depending upon display size, with longer
periods of time being available with more space. This is further adjustable by

the “X Range” control. The “History” control can be used to look at data recorded
further back in time than can be displayed in the current scrolling window.

The graph can measure input audio levels, MPX output levels, or the inputs of
either rear panel composite input.

Adjustments to the Y-axis are provided should it be necessary to shift or zoom to
better read the graph in greater detail.

The “Time” menu is set to “Relative” by default (showing the elapsed time
relative to the present) but can be changed to an actual time value if desired.

“Local” references the internal clock of Omnia.9sg. “Remote” references the
internal clock of the PC running the NfRemote session. “UTC” is true universal
time with no local offset applied.

•

The “Momentary Loudness” graph works in exactly the same was as the “Short

Term Loudness” version but provides a more detailed view over a much shorter
period of time.

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Содержание Omnia.9sg

Страница 1: ... 2016 TLS Corp W16 2 15019 Omnia 9sg Stereo Generator with Psychoacoustically Controlled Distortion Masking Clipper Your Audio Processor s New Best Friend Preliminary Manual S W Version 3 15 50 ...

Страница 2: ...ome of the primary parts even when the fuse has blown If fuse replacement is required replace fuse only with same type and value for continued protection against fire WARNING The product s power cord is the primary disconnect device The socket outlet should be located near the device and easily accessible The unit should not be located such that access to the power cord is impaired If the unit is ...

Страница 3: ...n Bauteilen noch gefährliche Spannungen vorhanden sein Wenn ein Austausch der Sicherung erforderlich ist ersetzen Sie die Sicherung nur mit gleicher Art und Wert für den kontinuierlichen Schutz gegen Feuer WARNUNG Das Gerätenetzkabel ist die Haupttrennvorrichtung Die Steckdose sollte sich in der Nähe des Gerätes befinden und leicht zugänglich sein Das Gerät sollte nicht so angeordnet sein dass der...

Страница 4: ...egulations of the Canadian department of communications Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de class a prescrites dans le règlement sur le brouillage radioélectrique édicté par le ministère des communications du Canada CE CONFORMANCE INFORMATION This device complies with the requirements of the EEC council d...

Страница 5: ...erior of your shipping container Please do not include cables or accessories unless specifically requested by the Technical Support Engineer Be sure to adequately insure your shipment for its replacement value Packages without proper authorization may be refused US customers please contact Omnia Technical Support at 1 216 622 0247 All other customers should contact local representative to make arr...

Страница 6: ...6 PRODUCT REGISTRATION Did you know that all Telos Alliance products come with a 5 year warranty Take a moment to activate your coverage online at http telosalliance com product registration ...

Страница 7: ... 1 Overview and Applications 8 Chapter 2 Quick Start Setup Guide 16 Chapter 3 Omnia 9sg Settings 23 Chapter 4 Monitor Outputs 49 Chapter 5 System Settings 59 Chapter 6 Client Audio 65 Chapter 7 FAQ 68 Chapter 8 Specifications 69 ...

Страница 8: ...ons to significantly upgrade their processing power and audio quality without having to invest in an entirely brand new processor Or you may simply prefer the dynamics processing AGCs and limiters from another brand or model but still want to take advantage of the superior composite abilities of Omnia 9 Details about using Omnia 9sg in such applications are provided later in this manual Applicatio...

Страница 9: ...can add an additional dB of loudness with no further audio degradation Some FM broadcasters are transmitting the same audio from two or more tower sites In these cases one primary audio processor can feed a WAN or satellite distribution system while individual Omnia 9sg s reside at each transmission site ...

Страница 10: ...olled In such cases keeping the main processor at the studio and installing a smaller and less expensive stereo encoder makes sense Stations employing main and backup STL s for redundancy feeding the same or geographically different transmitter sites can also benefit from Omnia 9sg by allowing the use of a single processor at the studio ...

Страница 11: ...tortion masking clipper and composite embedder that contribute so significantly to Omnia 9 s clean on air sound These include Full IP remote via NfRemote app with remote audio streaming Built in http server with push support for automation including dynamic RDS data such as artist and song titles Selectable SSB single sideband stereo encoding RF Bandwidth controller to reduce multipath distortion ...

Страница 12: ... music of life and invites listener fatigue Indeed some processors MUST resort to building density in this way because their simple or outdated clippers must be protected or simply aren t up to the job Like any other clipper the one in Omnia 9sg clips peaks and generates distortion but it can identify that distortion and use its proprietary algorithms in the composite signal to mask it effectively...

Страница 13: ...rec sm R REC SM 1268 3 201408 I PDF E pdf SSB Single Sideband Stereo Subcarrier Options Some improvements in FM stereo reception are possible by reducing or eliminating the upper sideband of the stereo subcarrier in the FM baseband signal This mode is called Single Sideband Suppressed Carrier or SSBSC Background information on the concept is available in this white paper https www telosalliance co...

Страница 14: ...ed at a transmitter site that is miles and often mountains away from the studio Most employ web based interfaces which on the surface sounds convenient because it allows you to remote in from a browser on any computer at any location but even the best of them fall short when it comes to a great user experience They require browser plug ins typically feel laggy when viewing meters or adjusting cont...

Страница 15: ...le it s on the air Even if you did so you re pretty much limited to monitoring only the composite output of your own station s processing Omnia 9sg s built in solution means there s no extra test equipment to buy scopes and analyzers aren t cheap and no cables to hook up It also means you can visually monitor the signal at the input the output and many points throughout the processing path so you ...

Страница 16: ...ld impede air flow Physical Installation Connect AC power to both of the internal power supplies There is no power switch It is always possible for a power supply to fail and so having redundant supplies does help protect you against losing power altogether in that event In reality it is far more likely that the unit will lose power because of an interruption to the circuit feeding it Therefore go...

Страница 17: ...er for menu navigation and control adjustment on the front panel Rocking the control left right up or down facilitates navigation through the various menus while turning the knob clockwise or counterclockwise adjusts individual controls Like older Omnia products the joystick can also be pushed in the center This action usually has the same function as rocking the control to the right The factory d...

Страница 18: ...n and follow the on screen directions to complete it When the NfRemote connection screen appears enter the IP address and password of your Omnia 9sg You may also fill in a friendly name in the Comment field to help identify the unit Be sure to click on the dropdown menu to the far right of the connection window and choose the correct input method local mouse remote desktop VM touch screen etc You ...

Страница 19: ...tor Input Adjustment menu set the Input Gain control as appropriate for your input source and processing needs NOTE The Input Gain control on Omnia 9sg adjusts the input drive level to the clipper and therefore replaces the more traditional and familiar Clipper Drive control found on a traditional FM processor Accordingly increasing this control increases clipper drive By default this control is s...

Страница 20: ... the way down but this approach would have a negative impact on overall audio quality due to the 15 kHz low pass filtering typically present in most processors The 16 5 kHz low pass filter of 9sg would allow significantly more high end through the system if fed directly without additional filtering prior to it Configure and Adjust the Output Connect the audio outputs as appropriate for your instal...

Страница 21: ...o feed the digital output Adjusting FM Diversity Delay If the output of Omnia 9sg needs to be delayed to match an HD signal the adjustment can be made in the Omnia 9sg Stereo Generator Input Adjust menu Separate adjustments are provided for the digial and analog inputs Double clicking on the Diversity Delay slider will provide course medium and fine adjustment sliders to make adjustment easier ...

Страница 22: ... conjunction with Omnia 7 or Omnia 9 the BS 412 specific presets in those processors should be used Any adjustments to the MPX power limiter should be made in the Omnia 9sg via the controls in the Omnia 9sg Stereo Generator MPX Power Limit menu keeping in mind that it may be necessary to set the MPX Power Limit slider to very different levels than the settings in the processor s preset to achieve ...

Страница 23: ...2 outlined in yellow then Tier 3 in green and finally Tier 4 in orange Not all Tier 3 menus will have a Tier 4 sub menu but some do At the bottom of each menu sub menu you will find the individual controls outlined here in blue Omnia 9sg Menu This menu contains the sub menus and controls for the stereo generator composite inputs meter options and both internal and external RDS settings Stereo Gene...

Страница 24: ...he backup preset will be displayed in yellow The Delete Preset button removes tough stains from your laundry OK it actually deletes the currently highlighted preset from the list but sometimes a technical writer grows weary of explaining the obvious and gets a little cranky Bear in mind that the currently loaded preset will remain active if deleted until another preset is recalled but will no long...

Страница 25: ...nia 9sg units Input Selection Menu The primary and secondary inputs either digital or analog are chosen here It is not necessary to provide a secondary input but doing so allows an alternate audio source to be placed on the air should the primary source be interrupted for any reason The Input Preference control has two settings Primary and Current and controls the behavior of the input source swit...

Страница 26: ...oint with the final limiter or clipper drive on the processor feeding 9sg backed off as much as possible Again you will want to back off the DRIVE to the limiter and or clipper on that processor and NOT simply adjust its post clipper output gain The Balance control can be used to compensate for a left right channel imbalance on the incoming signal The Diversity Delay control sets the amount of del...

Страница 27: ...pter 1 but to summarize it can be used to measure and manage the occupied bandwidth of the composite signal This is especially helpful for keeping receivers with a narrow front end happy for helping mitigate multipath distortion and for optimizing modulation performance per ITU Recommendation 1268 The Stereo Encoding control is set to the usual dual sideband operation by default Selecting Single S...

Страница 28: ... 9sg will be fed with flat non pre emphasized audio so that proper pre emphasis can be performed internally using either a 50us for Europe or 75us for U S curve However a flat output can be selected if desired The Pilot Level control as much to our surprise as yours adjusts the percentage of pilot injection into the composite signal In an ironic twist higher values equate to higher pilot injection...

Страница 29: ...ements to noise levels and multipath distortion This feature is toggled on and off by the Auto Pilot control The Stereo Sense control determines the level at which stereo audio in conjunction with a mono source such as a soft stereo music bed running under an otherwise dry voice is considered true stereo Higher settings make the switching more sensitive to such stereo content and will accordingly ...

Страница 30: ... MPX Power Limiter control The MPX Power Limit control is used to set the desired power level which can be displayed in any of the Modulation Monitor displays Setting up and understanding these and other displays is covered in detail in the chapter on Display Settings Selectable Standard or Aggressive limiter styles are offered As expected Standard is the gentler and less audible of the two while ...

Страница 31: ...d range frequencies particularly male and lower female voices Please note that Sparkling Highs must be enabled for Phat Mids to be selectable if Phat Mids is enabled and Sparkling Highs is turned off the Phat Mids indicator will remain yellow and switch back on when Sparkling Highs is re enabled but will be grayed out and removed from the audio path until such time The High Frequency Edge control ...

Страница 32: ...h low end texture but one that does not offer the slam of a traditional Omnia clipper even on the initial peak of a bass transient waveform Advancing the control toward 1 100 will produce more square waves increasing the bass punch and overall loudness but at the possible expense of more distortion in the low end The Bass Shape Frequency control sets the frequency of the highest harmonic produced ...

Страница 33: ... threshold 0 9 1 0dB 0 8 2 0 0 7 3 0 etc The Never allow bass above control works in conjunction with the Clip bass at control to create a window within which Omnia 9sg can dynamically vary the actual bass clipper threshold to help prevent intermod distortion Specifically it prevents the bass peak level after clipping from exceeding a certain setting Values that are increasingly lower in relation ...

Страница 34: ...requency than the resonant frequency of the drum which makes up the remainder of the sound Adjust carefully as too high a delay setting can cause audible distortion by allowing low frequencies to stay in the main clipper for too long The Delayed Max Level control works in tandem with the Bass Clip Delay control and limits the amplitude of the initial peak At a setting of 1 0 the leading edge of th...

Страница 35: ...9sg the bandwidth of the connection the rate and amount of sent and received data and the duration of the NfRemote session Given adequate bandwidth audio streamed back from the Omnia 9sg to the host PC by the Client Audio service details of which are provided in the chapter on Client Audio will be lossless in nature and is indicated in the Audio Format field A data compressed lossy coded version o...

Страница 36: ...can show up to eight display windows outlined here in green The number of simultaneous displays used in each preset will depend primarily upon monitor size as adding displays reduces the size of each individual window and will on smaller monitors quickly make them less readable and useful Note that the proportional size of the upper middle and lower sections of the screen can be adjusted by clicki...

Страница 37: ...various patchpoints within Omnia 9sg via an oscilloscope FFT spectrum analyzer and RTA are available from this menu The Clipper display shows the clipping action and depth of both the main and the bass clipper The interaction between the Clip bass at and Never allow bass above controls can readily be seen in this display as well The Oscilloscope display brings up the controls and various patchpoin...

Страница 38: ...mposite MPX signals throughout the processing chain Especially useful is the multiplexed composite output display which gives a detailed view of upper and lower sidebands the pilot and the RDS signal The Client Audio feature will be explained in greater detail in a later chapter but for now it is sufficient to just be aware that its output levels and protection limiter activity can be viewed in th...

Страница 39: ... displayed in the current scrolling window The graph can measure input audio levels MPX output levels or the inputs of either rear panel composite input Adjustments to the Y axis are provided should it be necessary to shift or zoom to better read the graph in greater detail The Time menu is set to Relative by default showing the elapsed time relative to the present but can be changed to an actual ...

Страница 40: ...which are covered in greater detail in the Meter Options chapter The Numeric Modulation display can show MPX Power total modulation L R modulation and pilot levels as a numeric value The MPX Power Graph display shows loudness trends over time and operates in much the same way as the loudness graphs described in the Loudness Meters section above The Modulation Meters display can show all of the sam...

Страница 41: ...a 9sg Enabling the PEQ button turns on the 2 band parametric equalizer The center frequency width and gain controls work in the traditional manner while the Phase control offers a choice of phase linear phase forward or phase reverse equalization The output of most mod monitors and tuners have some tilt present for which the Tilt Amount and Tilt Coefficient controls can compensate After correcting...

Страница 42: ...odulation Meter and Modulation Numeric displays MPX Power Graph is available only in the MPX Power Graph display Loudness Graph is available in both the Short Term and Momentary Loudness displays MPX Power Meter Peak Modulation Meter Pilot Level Meter and L R Level Meter are viewable only in the Modulation Meters display MPX Power Numeric Peak Mod Numeric Pilot Level Numeric and L R Level Numeric ...

Страница 43: ...Please note that the MPX inputs cannot be used to insert an SCA signal RDS Main Menu Controls for turning RDS on and off and for selecting between the internal and an external RDS generator are located here as is the slider to control the injection amount UECP information can be added here as well Main Sub Menu The RDS Mode control turns off RDS altogether or selects between the internal RDS gener...

Страница 44: ...a is received Clicking on the Update UECP button will confirm the port entry made above or update it if changed Enabling Use Internal Settings on Connection Drop will utilize any data entered into the internal RDS fields when if the connection to the external data source is lost When the connection is re established the data from the external source will once again be applied As UECP supports very...

Страница 45: ... block is displayed enter the desired time in from of the text in seconds for example 1 5sWOMN FM 1 5s88 5 FM 1 0sCLASSIC 1 0sROCK The RT field provides space for a 64 character free form message that many radios will display in addition to the PS field either automatically or on demand Like the PS it can be a static field to provide a station slogan for instance or dynamic to provide song title a...

Страница 46: ...mic PTY indicates to listeners that the type of programming on your station may change periodically for instance music during the week but sports on the weekends The PTY code can optionally be updated by your station s automation system via the 9sg http interface The PTY Code list provides a choice of the 31 standard program formats for static selection and will reflect any changes made via the ht...

Страница 47: ...e Compressed decoder information control to indicate the audio has been processed though most modern RDS receivers simply ignore this control as its use and acceptance have become uncommon The Stereo decoder information control identifies the station as broadcasting in stereo The Music decoder information control identifies the station as one that offers primarily music content as opposed to talk ...

Страница 48: ... into up to 16 alternative frequencies when the signal of the current frequency weakens The Alt Freq 1 and Alt Freq 2 menus allow you to specific those frequencies Use this feature with caution as it may not be consistently implemented on different receivers Typically it would be used in very large networks with overlapping transmitters on the same groups of frequencies ...

Страница 49: ...T to the monitor output that is the source audio that can potentially feed a physical output or a display is set in the in the Patch Point menu described in greater detail below here in the Monitor Outputs menu The OUTPUT of the monitor output that is the audio from the selected patchpoint can be picked up as a source in various places throughout the system including the headphone jack AES output ...

Страница 50: ... connected to the composite inputs A full composite output signal of Omnia 9sg itself is also available by selecting MPX Output Physical Inputs Menu Audio from either the rear panel AES Digital input or Analog input is offered here MPX Decoded Menu Decoded pre emphasized de emphasized audio can be monitored here from either Omnia 9sg s own composite generator via the MPX Output Decoded option or f...

Страница 51: ...the backup preset will be displayed in yellow The Delete Preset button does exactly that Deletes the current preset It will remain the current preset until another preset is recalled but will no longer be available for recall once another preset replaces it The Load From button allows a preset saved to the PC running NfRemote to be loaded into the Omnia 9sg This is handy for uploading a configurat...

Страница 52: ... No this is not a typo we liked it so much we put it there twice The Main Menu contains basic gain controls to set the output levels of each Monitor Output when creating a calibration profile The Volume slider adjusts the output level to the the specified Monitor Output Enabling the Bypass control removes any parametric EQ settings loudness contours or high pass filtering from the Monitor Output E...

Страница 53: ...ave made significant cuts to particular frequencies you may need to raise the Master Gain control so that the output level more closely matches that of the original un calibrated output especially useful when A B ing the audio with the Bypass control The Left Level and Right Level controls allow the gain to be adjusted independently in each channel and act as a balance control in situations where ...

Страница 54: ...high pass filter sliders set the lowest frequencies permitted to pass through the Monitor Output once the thresholds set in the Volume sliders are crossed If the Volume slider is set to 0 that volume based high pass filter will be active at all volume levels The default and lowest value unless disabled is 15 Hz The two sets of volume based high pass filter controls interact If for example the firs...

Страница 55: ...one monitor channel 180 degrees out of phase with the other though it would probably be a good idea to fix such an egregious wiring error A Defeat Delay control is also provided to bypass this delay entirely Channel Coupling Menu In some installations the left and right speakers are in similar locations within the room and relative to the monitoring point In these situations EQ and Delay settings ...

Страница 56: ...reshold of the final protection limiters in each Monitor Output They too have a Coupled control Loudness Menu The audio monitoring tools in 9sg also include a loudness curve adjustment These controls much like the Volume Based High Pass Filter mentioned earlier can compensate for monitoring systems with an uneven frequency response that varies based on the volume There are 6 bands of control avail...

Страница 57: ...requency as one would expect determines the center frequency of each EQ band Note that each band can be set to any frequency or the same frequency and they do not necessarily need to be in order by frequency This is truly a fully parametric EQ Band x PEQ Bandwidth controls the bandwidth or Shape of the EQ curve for each band Lower numbers will create a narrower EQ curve and affect a smaller number...

Страница 58: ... of the fact that these are fixed gain levels rather than tied to the monitor volume control these EQ bands function identically to the loudness EQ controls described above center frequency bandwidth gain If the Common L R EQ setting is selected in the Channel Coupling menu described earlier the Right EQ settings will be greyed out and will follow the Left EQ settings When the channels are not lin...

Страница 59: ...y selected source and other diagnostic metrics System Information Contains information about CPU load available memory up time and software versions Network Information This menu gives details about the unit s LAN connection including the IP address MAC address and number of NfRemote sessions that are currently connected System Configuration In the System Configuration menu you ll find all of the ...

Страница 60: ...rvers on your network that you need to synchronize to Location This field is primarily for user convenience or management purposes It serves to identify the 9sg by a specific location when connected via NfRemote for example Cleveland Ohio USA or Rack 2 TOC Power Allows a clean remote power cycle of 9sg Normally this would only be necessary for troubleshooting purposes Use this with caution as it W...

Страница 61: ...erfectly valid IP address but it may indicate an issue with the unit s network connection Double check your Ethernet connection and verify that you are actually connected to the network To assign an IP address manually de select Use DHCP and enter the IP Mask Gateway and DNS servers as appropriate Click Apply to confirm the changes Note You WILL need to reconnect to the unit once you make changes ...

Страница 62: ...ress and port If connection is not successful attempts will gradually slow down until an idle rate of once every 4 minutes is reached Once this state is reached it may take as long as 5 minutes for a remote NfRemote client to receive an inbound connection request Configuring NfRemote to accept an inbound connection In NfRemote select Inbound Connection Specify a port on which NfRemote will be list...

Страница 63: ...essed by systems and networks specified in the HTTP Access menu Up to 8 individual hosts or networks can be allowed access in the format of IP address IP address and network mask or IP address with wildcard i e 192 168 200 20 192 168 200 20 255 255 255 0 or 192 168 200 There is no username or password challenge on the http interface so ensure that only the hosts and networks that need access are l...

Страница 64: ...ad When restoring a configuration file you have the option of either retaining the existing IP address and password OR restoring these parameters from the uploaded configuration file Typically both would be left at Retain to prevent losing access to the unit though if you have a corporate password or IP addressing scheme stored with the configuration files it may make sense to select Override inst...

Страница 65: ...corder and Client IP Options Client Audio Out This menu allows control of audio output from the NfRemote client including the patch point and various monitoring calibration controls The additional submenus in this section are identical to those in the Monitor Outputs section Patch Point menu To enable client audio output click the power button icon in this menu A selectable Sample Rate Converter S...

Страница 66: ... microphone you d like to use a parametric equalizer to create custom EQ curves for individual mics and the ability to save and recall custom mic presets Input Device Allows selection of the device or input that will feed the NfRemote client when performing monitor calibration Click Refresh List to update the list of devices Load Save Preset These menus allow you to save custom calibration profile...

Страница 67: ...fied folder path with the specified filename s Depending on network bandwidth these recordings will either be a lossless PCM Nicam or Vorbis source and stored as lossless FLAC files Files can be split with various durations and recording can be triggered by presence of audio VOX Client IP Options This menu provides information about the host running NfRemote and allows establishing an Outbound Con...

Страница 68: ...chieve a good end result You could also use other outputs such as an FM output with no pre emphasis again adjusted for minimum limiting clipping though the 15 kHz low pass filtering typically present on such an output would result in less than ideal results since 9sg actually does its low pass filtering at 16 5 kHz by default resulting in better high frequency response What about RDS Yup 9sg has a...

Страница 69: ...dB increments into 600 Ohms 20 Ohm output impedance Analog I O Two balanced EMI filtered XLR connectors Composite I O Four 75 Ohm BNC female two inputs two outputs Digital I O AES EBU via XLR connector and external sync via BNC Remote Control RJ45 supporting 1000 BASE T Ethernet connections Power Requirements 100 264 VAC 47 63Hz autosensing dual PSU Power Connector Dual IEC male detachable 3 wire ...

Страница 70: ...s UL approved Europe Complies with the European Union Directive 2002 95 EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment RoHS as amended by Commission Decisions 2005 618 EC 2005 717 EC 2005 747 EC RoHS Directive and WEEE ...

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