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Omnia ONE FM Скачать руководство пользователя страница 51

Appendix A: Performance Specifications

OmniaONE FM

As of July 2007 – Version 1.0 FM Software

Note: Discrete I/O measurements have been made in "Bypass" mode (available in the
Input/Output menu). FM composite measurements have been made using the "Proof_Perf"
preset.

General Audio Specifications

Frequency Response:

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

within ± 0.50 dB, 30 Hz to 15 kHz. The analog left/right outputs and

AES/EBU Digital outputs can be configured for flat or pre-emphasized

output.

System Distortion:

Less than 0.01% THD, 20 Hz – 7.5 kHz. Second harmonic distortion

above 7.5 kHz is not audible in the FM system.

*Signal-Noise Ratio:

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

100%

modulation).

*The measured noise floor will depend upon the settings of the Input and Output Gain controls and is primarily governed
by dynamic range of the Crystal Semiconductor CS5361 A/D Converter which is specified as >110 dB. The dynamic range
of the internal digital signal processing chain is >144 dB.

Stereo Separation:

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

Crosstalk:

> -70 dB, 20 Hz -- 15 kHz.

Composite Outputs:

Source Impedance: 5 ohms or 75 ohms, jumper-selectable. Single-ended

and floating over chassis ground.

Output Level: 0V to 10V in 0.05V steps, software adjustable.
D/A Conversion: Texas Instruments/Burr Brown PCM1798, 24-bit sigma-
delta converter.
Configuration: Two electrically independent outputs. Software based

level

adjustment.

Load Impedance: 50 ohms or greater load is suggested.

Pilot

Level:

Adjustable

from

4.0% to 12.0% in 0.1% steps and OFF.

Pilot Stability: 19 kHz, ± 0.5 Hz.

Signal-to-Noise Ratio: -85 dB typical, 75

μ

S de-emphasized, 15 kHz

bandwidth, referenced to 100% modulation).

Distortion:

<

0.02%

THD

20 Hz – 15 kHz bandwidth, 75

μ

S de-

emphasized,

referenced

to

100%

modulation.

Stereo Separation: > 65 dB, 30 Hz – 15 kHz.

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Содержание ONE FM

Страница 1: ...pplicable to OmniaONE units running FM version 2 0 11 or higher A Telos Company Omnia 2101 Superior Avenue Cleveland Ohio 44114 USA TEL 1 216 241 7225 FAX 1 216 241 4103 www omniaaudio com Omnia Europ...

Страница 2: ......

Страница 3: ...t thank you to Rob Dye Bill Mohat Ed Zmuginsky Mark Manolio Ted Alexander David Jablonski Scott Stiefel Betty Ferrell Marty Greenberg Steve Kiffmeyer Denny Sanders Marty Sacks Mike Dosch Kirk Harnack...

Страница 4: ...ii...

Страница 5: ...nstallation If your audio source is providing an audio feed you should then see meter activity on the LED bargraph meters 6 While driving the inputs with typical program material at normal operating l...

Страница 6: ...nput AES EBU External Sync Input and AES EBU Output 4 Ethernet Livewire Connection 5 RS 232 Modem Connection DB 9M 5 General Purpose Interface GPI DB 9F 6 Powering Up 6 Chapter 2 Getting To Know Your...

Страница 7: ...24 High Band AGC 24 Low Band Limiter 24 Mid Band Limiter 25 Presence Band Limiter 25 High Band Limiter 25 Bass Clipper 25 Mixer 26 Clipper 27 Exit 27 Input Output 28 Mtr Select Meter Select 28 Input 2...

Страница 8: ...the World Wide Web 46 Via E Mail 46 Via Phone Mail USA and non European Countries 46 Warranty 47 Appendix C Remote Control and Software Update Procedure 49 Remote Control 49 Remote 50 Preset Tab 50 Pr...

Страница 9: ...ring a lightning storm or when it is left unattended and unused for long periods of time unplug it from the AC wall outlet This will prevent damage to the product due to lightning and power supply sur...

Страница 10: ...o communications The device has been formally submitted for testing and found to comply with the limits for a Class B computing device pursuant to subpart J of Part 15 FCC Rules and has been designed...

Страница 11: ...es must be used for all audio and data connections NOTE When the unit is operated in an extremely high RF environment it may be helpful to connect cable shields to the XLR connector terminal that conn...

Страница 12: ...courage our customers to visit our Omnia website for product enhancement announcements software updates updated user manuals and customer support bulletins The following URLs have been included for yo...

Страница 13: ...nd Female XLR to StudioHUB RJ45 adaptor cables AC Power Environment The OmniaONE subsystem is a DSP based microcomputer and therefore requires reasonably clean AC power just as any modern computer sys...

Страница 14: ...r should be installed into a properly grounded 19 equipment rack Refer to Chapter X OmniaONE User Tips for additional considerations on where to physically locate your processor AC Power Connection Om...

Страница 15: ...niaONE differs from that of your existing system your announcers may feel that they sound weird in their headphones If this occurs then the relative phase of the processor is 180 degrees from what you...

Страница 16: ...he OmniaONE by connecting the signal to the SCA INPUT connector The SCA signal is mixed in the analog domain directly into both composite outputs A high pass filter on the SCA input provides SCA to ma...

Страница 17: ...nector for troubleshooting purposes RS 232 Modem Port NOTE You must use a standard straight through serial cable and not a null modem cable when connecting the RS 232 connector of the Omnia and the ex...

Страница 18: ...r Script functionality are not yet implemented in the current software but will be available with a free downloadable software update Please check the Omnia website for new software announcements down...

Страница 19: ...ard TRS stereo headphone jack is located at the left side of the front panel and allows the processed signal to be monitored The Headphone volume level control is physically located to the right of th...

Страница 20: ...of the processing activity the amount of gain reduction in the AGC Limiter and Clipper sections within the OmniaONE If the Menu Display is currently showing on the OmniaONE s LCD screen press and hold...

Страница 21: ...ltiple controls their positions and what they do in each menu The behavior of the OmniaONE s menu system is consistent across pages and is easy to learn We believe that you will quickly become comfort...

Страница 22: ...his will return you to the next highest level in the menu structure NOTE Some of the longer menus have an Exit option at the top of the menu as well as at the bottom The OmniaONE Main Menu offers five...

Страница 23: ...rmal program audio levels applied a correct input level setting will result in peak indications on the L R LED meters achieving 12 dBFS or a little higher just into the yellow This gain setting corres...

Страница 24: ...of OmniaONE to the output at approximately 7 7ms This is enough for a slight voice character coloration to be audible to the person speaking but usually not enough to be a problem for talent monitori...

Страница 25: ...ng an overall fine tuning plan if you feel changes beyond our factory presets are justified The trade off between quality and loudness is primarily determined by how you choose to use the limiting and...

Страница 26: ...nation of all of the above yes it sounds crazy but it s true Always resist the temptation to make too many changes at once because it then becomes difficult to determine why or why not an adjustment m...

Страница 27: ...minor trim to the spectrum If you ve noticed that we calibrated these controls in 0 10 dB steps then you know what we mean when we say these controls are for fine trim Since this stage is after all of...

Страница 28: ...16...

Страница 29: ...them Here in the Preset menu you may select and load presets to use but not save delete or rename them Those operations may be accomplished from within the Processing menu Processing Highlighting and...

Страница 30: ...b When the desired character is 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 character Select the character t...

Страница 31: ...XO which splits the audio into 4 bands for optimum processing in each of the Bass L Midrange M Presence P and Treble H frequency ranges Each of the four processing bands consists of an AGC followed b...

Страница 32: ...e subsonic energy from the input audio prior to further processing In so doing intermodulation distortion performance of the processor and the audio path following it are improved and processing resou...

Страница 33: ...action of gate also prevents noise rush up during periods of no audio or during pauses in speech RTZ Speed Return To Zero Speed RTZ stands for Return To Zero What RTZ does is return the gain of the WB...

Страница 34: ...d clipper stages Low Drive Adjusts the amount of gain reduction in the Low Band AGC Higher numbers result in more drive and because of the increased compression a more consistent output from the band...

Страница 35: ...setting the control for extremely fast release times can result in pumping Gt Thresh Gate Threshold When the input audio falls below a certain level the gain control action of the AGC stage is frozen...

Страница 36: ...rd can result in pumping as well as extremely dense sounding fatiguing audio Also setting the control for extremely slow release times especially when combined with fast Attack times can cause the lim...

Страница 37: ...gs Exit Click on this option to return to the Adjust Processing submenu Mid Band Limiter See description of settings for Low Band Limiter Presence Band Limiter See description of settings for Low Band...

Страница 38: ...for each of the multiband limiter sections before the signal reaches the final clipper Care should be used when adjusting this section as too much level from any particular band could cause an excess...

Страница 39: ...rom there This should be the optimum setting for your station and market Clip Silk This control adjusts the texture of the main clipper when the clipper is handling significant mid and upper midrange...

Страница 40: ...ut menu Input Src Input Source Allows the selection of Analog AES EBU digital or Livewire as the primary input source to the OmniaONE Fover Time Failover Time Failover Time is a feature that when set...

Страница 41: ...which is derived from the rear panel Ethernet Livewire RJ 45 connector See Proper Setting of Input Levels on Page 11 Right Trim Allows a 3dB adjustment of the right Livewire audio channel gain to cor...

Страница 42: ...P processing chain to swap the Left and Right internal channels that is the DSP Left Channel is fed from Right Channel input and the DSP Right Channel is fed from the Left Channel input Note that this...

Страница 43: ...re RJ 45 connector This control adjusts both the left and right stereo channels simultaneously Right Trim Allows a 3dB adjustment of the right Livewire audio channel gain to correct minor left right b...

Страница 44: ...udio transmitter link STL In these kinds of installations it is very important that the OmniaONE FM is the ONLY device applying the pre emphasis All other equipment following the OmniaONE FM must have...

Страница 45: ...Stereo Generator menu and each will be explained in the order in which they appear in the menu Comp 1 Comp 2 These composite MPX output level controls individually set the level at the two separately...

Страница 46: ...mory as named configuration presets Use this to save your I O configuration as the system default or save more than one configuration if the unit will be used with different external equipment configu...

Страница 47: ...d click Load IO Config This option allows you to select and load a previously saved IO configuration To load a saved IO configuration highlight Load IO Config and click Rotate the jog wheel until the...

Страница 48: ...nterface The entries have the form of octet octet octet octet which when entered may appear as a network address such as 192 168 0 200 Subnet Subnet Mask Accepts data in the form of four octets to des...

Страница 49: ...lay the editing cursor Instead rotate the jog wheel to highlight the Save button and click to save the password If you wish to cancel without saving the new password rotate the jog wheel to highlight...

Страница 50: ...sired character is found click to accept that character rotate the jog wheel one notch clockwise to advance the cursor to the next position and click again to display the editing cursor Enter the next...

Страница 51: ...ntrols and is primarily governed by dynamic range of the Crystal Semiconductor CS5361 A D Converter which is specified as 110 dB The dynamic range of the internal digital signal processing chain is 14...

Страница 52: ...erial with a nominal average level VU reading of 4dBu will typically produce peak readings on the input meter in the range of 12 dBFS to 6dBFS This is the correct operating level A D Conversion Crysta...

Страница 53: ...r isolated balanced and floating according to AES3 standard External Sync Range Automatically accepts sample rates between 32kHz and 96kHz Connector EMI suppressed RJ 45 female pinned according to Stu...

Страница 54: ...val CE marked Environmental Operating Temperature 32 to 122 deg F 0 to 50 deg C for all operating voltage ranges Humidity 0 95 RH non condensing Dimensions 19 wide x 1 75 high x 16 deep 48 26cm wide x...

Страница 55: ...leshooting techniques for isolating possible OmniaONE problems in the field and also how to obtain help or repair service from Omnia To take complete advantage of this functionality you only need a st...

Страница 56: ...lick on the Factory Diagnostics link option in the Utilities section at the bottom of the Configuration screen A report similar to the below will be generated You can select the text and then copy and...

Страница 57: ...output although the processing bargraphs are working The first thing to verify is whether the front panel jog wheel is operational Verification of front panel operation helps narrow down where the pro...

Страница 58: ...t as well as possible Damage caused by improper packaging is not covered under your warranty Note To ensure prompt service the Return Authorization RA number must be written prominently on or near the...

Страница 59: ...ed dealers be liable for incidental or consequential damages or for loss damage or expense directly or indirectly arising from the use of any of the Products or the inability of the end user to use an...

Страница 60: ...48...

Страница 61: ...Solaris Linux and Apple Mac OS is available here http www java com en download manual jsp Once Java is installed on your computer using a Web browser connect to the IP address of your OmniaONE as foll...

Страница 62: ...enu you can select save and delete presets stored in the OmniaONE unit These are the same operations that can be performed from the OmniaONE s front panel but consolidated on a single menu To select a...

Страница 63: ...will appear 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 processing block windows may be opened at the same t...

Страница 64: ...ired setting and release In Tab Clicking on the In tab will display all of the controls for the OmniaONE s Input menu in the main applet screen Adjustment of the controls works the same way as describ...

Страница 65: ...the Livewire channel to be used is assigned and the Livewire output stream mode is selected The Livewire output can also be disabled here In the Input to Omnia ONE section the channel from your Livewi...

Страница 66: ...as small text based files with the opr extension To upload a previously saved user preset to the OmniaONE use the file entry box or the browse button to enter the path to the preset file name to be u...

Страница 67: ...ownload and upload operations described above with the exception that the filename extension for I O configurations is oic Trigger Scripts Please note that Trigger Script functionality is not yet impl...

Страница 68: ...k Configuration on Page 35 for details and connect your OmniaONE s Ethernet Livewire jack to your Ethernet network using a standard Cat 5 cable or directly to a computer using a Cat 5 crossover cable...

Страница 69: ...on the link Click here to monitor the progress of the update The Installation Progress Monitor screen should appear The log box on this screen will be automatically refreshed every 8 seconds NOTE If t...

Страница 70: ...pt the audio From the Select Software Bank section click the radio button of the Bank that contains the new software version and click the Apply button In this example we decided to go ahead and activ...

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