BrightEye 71 and 71-F Manual 1.1
Contents
1. D BrightEye 71 and 71 F HD SD 8 Channel Analog Audio Embedder Disembedder User Guide ENSEMBLE www ensembledesigns com BrightEye 71 and 71 F Page 1 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide D BrightEye Z1 and 71 F Contents PRODUCT OVERVIEW FUNCTIONAL DESCRIPTION Optical Output with the 71 F APPLICATIONS Embedder Mux And Disembedder Demux Embedder Mux REAR CONNECTORS Power Connection USB Connector HD SD SDI Out Analog Audio Connectors HD SD SDI In OPERATION Front Panel Controls and Indicators Status Indicators ADJUSTMENTS Adjusting Parameters from the Front Panel USING THE BRIGHTEYE CONTROL APPLICATION Config Menu Audio Input Menu Multiplexer Mode Demultiplexer Mode Mixer A Menu Mixer B Menu Audio Out Menu www ensembledesigns com BrightEye 71 and 71 F Page 2 w WwW UI w SN nA A HA A A OQ wu wu O o o NN HD SD 8 Channel Analog Audio Embedder Disembedder User Guide D BrightEye Z1 and 71 F SOFTWARE UPDATING 16 WARRANTY AND FACTORY SERVICE 16 Warranty 16 Factory Service 16 SPECIFICATIONS 17 BrightEye Power Supply Information 19 GLOSSARY 20 www ensembledesigns com BrightEye 71 and 71 F Page 3 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide lt BrightEye Z1 and 71 F PRODUCT OVERVIEW The BrightEye 71 71 F is a dual rate eight channel audio embedder or disembedder for 1 5 Gb s high definition video signals or for 270 M2. Invert Default Invert Default Invert Default Invert www ensembledesigns com BrightEye 71 and 71 F Page 14 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F Mixer B Menu www ensembledesigns com Outputs 5 8 provides peak VU status with the same methodology as the front panel VU indicators but on a per channel basis rather than per channel pair Peak VU indicators illuminate red when the audio level on that channel exceeds the headroom level set by the user with the Peak Indicator control Additionally the VU indicator illuminates orange when the output is above 0 VU illuminates green when the output is above 20 VU and doesn t illuminate when the output is below 20 VU Inputs Ch 5 8 these controls provide mixing and output level control for audio channels 5 to 8 of the selected audio group The text field at the top of the control indicates the amount of gain applied to the channel in dB The gain level can be adjusted by moving the vertical slider control using the up down arrows or entering a desired level directly in the field from 70 dB to 12 dB On the right hand side of the control are Out Bus Ch Assign buttons These buttons control which analog output channel the audio channels are mapped to It is possible to map an Input channel to anywhere from zero to eight output channels The Tie function is used for stereo operation where gain of a pair of ch
3. when set to other than unity e Pwr Power IIluminates green when the BrightEye unit has power and the internal voltage regulator is functioning correctly www ensembledesigns com BrightEye 71 and 71 F Page 8 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide D BrightEye Z1 and 71 F ADJUSTMENTS Adjusting Parameters from the Front Panel From the front panel use the Mode Left Arrow and Right Arrow buttons to select and adjust parameters Pressing the Mode button cycles through the parameters that can be modified from the front panel The LED of the currently selected parameter will blink A quick press of the Mode button advances to the next editable parameter A longer press of the Mode button will back up to the previous editable parameter Pressing the Right Arrow or Left Arrow advances or backs up through the choices for the currently selected parameter or increases Right Arrow or decreases Left Arrow the value of the selected parameter The LED of an edited parameter will blink for 15 seconds after which time its value is stored in memory If power is interrupted before this 15 second timeout period has elapsed the edited state will not be not saved Pressing the Right Arrow and Left Arrow simultaneously restores the selected parameter to its default value The controls and their indicators are described below Mode This control selects the Mux behavior with the following choices e Mux Embed aud
4. BBC claim that it stands for Perfection At Last Progressive An image scanning technique which progresses through all of the lines in a frame in a single pass Computer monitors all use progressive displays This contrasts to the interlace technique common to television systems www ensembledesigns com BrightEye 71 and 71 F Page 25 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F Return Loss An idealized input or output circuit will exactly match its desired impedance generally 75 ohms as a purely resistive element with no reactive capacitive or inductive elements In the real world we can only approach the ideal So our real inputs and outputs will have some capacitance and inductance This will create impedance matching errors especially at higher frequencies The Return Loss of an input or output measures how much energy is returned reflected back due to the impedance mismatch For digital circuits a return loss of 15 dB is typical This means that the energy returned is 15 dB less than the original signal In analog circuits a 40 dB figure is expected RGB RGB systems carry the totality of the picture information as independent Red Green and Blue signals Television is an additive color system where all three components add to produce white Because the luminance or detail information is carried partially in each of the RGB channels all three must be carried at full bandwidth in
5. SDI signal by taking advantage of the gaps in the transmission which correspond to the horizontal and vertical intervals of the television waveform This technique can be very cost effective in transmission and routing but can also add complexity to signal handling issues because the audio content can no longer be treated independently of the video Frame Sync A Frame Synchronizer is used to synchronize the timing of a video signal to coincide with a timing reference usually a color black signal that is distributed throughout a facility The synchronizer accomplishes this by writing the incoming video into a frame buffer memory under the timing direction of the sync information contained in that video Simultaneously the memory is being read back by a timing system that is genlocked to a house reference As a result the timing or alignment of the video frame can be adjusted so that the scan of the upper left corner of the image is happening simultaneously on all sources This is a requirement for both analog and digital systems in order to perform video effects or glitch free switches in a router Frame synchronization can only be performed within a single television line standard A synchronizer will not convert an NTSC signal to a PAL signal it takes a standards converter to do that Frequency Response A measurement of the accuracy of a system to carry or reproduce a range of signal frequencies Similar to Bandwidth www ensembledesigns co
6. frequency on average in the interim it varies Some bits come slightly early other come slightly late The measurement of this jitter is given either as the amount of time uncertainty or as the fraction of a bit width For 270 Mb s video the allowable jitter is 740 picoseconds or 0 2 UI Unit Interval one bit width www ensembledesigns com BrightEye 71 and 71 F Page 24 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F Luminance The black amp white content of the image Human vision has more acuity in luminance so television systems generally devote more bandwidth to the luminance content In component systems the luminance is referred to as Y Multi mode Multi mode optical fibers have a larger diameter core either 50 or 62 5 microns and a correspondingly larger aperture It is much easier to couple light energy into a multi mode fiber but internal reflections will cause multiple modes of the signal to propagate down the fiber This will degrade the ability of the fiber to be used over long distances See also Single mode NTSC The color television encoding system used in North America was originally defined by the National Television Standards Committee This American standard has also been adopted by Canada Mexico Japan Korea and Taiwan This standard is referred to disparagingly as Never Twice Same Color Optical An optical interface between two devices carries d
7. the unit is configured as Mux the four Phoenix connectors are inputs When configured as Demux the four Phoenix connectors are outputs HD SD SDI In This BNC input accepts an HD or SD SDI serial digital video signal with or without embedded audio When the module is configured as a demultiplexer embedded audio present on this input stream can be extracted processed on the module then output from the module on the audio outputs When configured as a multiplexer external analog audio can be inserted into the SDI input stream or replace existing embedded audio www ensembledesigns com BrightEye 71 and 71 F Page 7 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F OPERATION Control and operation of the BrightEye 71 71 F is performed from the front panel or with the BrightEye Control application When controlling the module from the front panel most but not all of the control settings and parameter choices will be available For more comprehensive control use the BrightEye PC or Mac Control application Front Panel Controls and Indicators The front panel shown in the figure below provides status indicators and control over module setup E BrightEye HD SD 8 Channel Analog Audio Mux Demux ENSEMBLE DESIGNS y ge 4 A fiag eee OCEAN G E b ro NT up Gain Mode Status Indicators The following status indicators are provided on the front panel e In Il
8. will undo the scrambling and cause extremely long runs to occur This test signal is very useful for testing transmission paths Chroma The color or chroma content of a signal consisting of the hue and saturation of the image See also Color Difference Component In acomponent video system the totality of the image is carried by three separate but related components This method provides the best image fidelity with the fewest artifacts but it requires three independent transmission paths cables The commonly used component formats are Luminance and Color Difference Y Pr Pb and RGB It was far too unwieldy in the early days of color television to even consider component transmission Composite Composite television dates back to the early days of color transmission This scheme encodes the color difference information onto a color subcarrier The instantaneous phase of the subcarrier is the color s hue and the amplitude is the color s saturation or intensity This subcarrier is then added onto the existing luminance video signal This trick works because the subcarrier is set at a high enough frequency to leave spectrum for the luminance information But it is not a seamless matter to pull the signal apart again at the destination in order to display it or process it The resultant artifacts of dot crawl also referred to as chroma crawl are only the most obvious result Composite television is the most commonly used format
9. 00 meters for SD Belden 1694A Automatic Input Cable Equalization HD Standards Supported 1080i SMPTE 274M 4 5 6 50 59 94 or 60 Hz 720p SMPTE 296M 1 2 3 50 59 94 or 60 Hz 1080p SMPTE 274M 9 10 11 23 98 24 25 Hz 1080sF RP211 14 15 16 23 98 24 25 Hz Analog Audio Inputs Number Type Impedance Max Input Level CMRR Quantization Sample Rate Reference Level Freq Response Crosstalk Dynamic Range Analog Audio Outputs Number Type Impedance Max Output Level Resolution Reference Level Freq Response Crosstalk Dynamic Range www ensembledesigns com Eight selectable as inputs or outputs Balanced gt 15KO 24 dBu gt 60 dB 20 Hz to 10 KHz 24 bits 128x oversampled 48 KHz 10 dBu or 4 dBu 0 1 dB 20 Hz to 20 KHz lt 106 dB gt 106 dB Eight selectable as inputs or outputs Balanced transformerless 300 24 dBu 24 bits 128x oversampled 10 dBu or 4 dBu 0 1 dB 20 Hz to 20 KHz lt 106 dB gt 106 dB BrightEye 71 and 71 F Page 18 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide e BrightEye Z1 and 71 F Embedded Output In SDI Outputs Group Assign Cascade or Replace any two of four groups Channels Eight Bit Depth 24 bit Serial Digital Output Number Two BE71 One BE71 F Type Follows input Delay lt 1 uSec Audio is adjustable to 1 second Impedance 750 Return Loss gt 15 dB Output DC None AC coupled Optical Output only on the BrightEye 71 F Nu
10. TING Software upgrades for BrightEyes are available at the following link http www ensembledesigns com support brighteye support Use BrightEye Mac or PC software to install the software update into your BrightEye WARRANTY AND FACTORY SERVICE Warranty This unit is covered by a five year limited warranty If you require service under warranty or not please contact Ensemble Designs and ask for customer service before you return the unit This will allow the service technician an opportunity to provide any other suggestions for identifying the problem and to recommend possible solutions Factory Service If you return equipment for repair please get a Return Material Authorization Number RMA from the factory first Ship the product and a written description of the problem to Ensemble Designs Inc Attention Customer Service RMA 870 Gold Flat Rd Nevada City CA 95959 USA 530 478 1830 Fax 530 478 1832 service ensembledesigns com http www ensembledesigns com Be sure to put your RMA number on the outside of the box www ensembledesigns com BrightEye 71 and 71 F Page 17 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F SPECIFICATIONS Serial Digital Input for BrightEye 71 Number One Type HD Serial Digital 1 485 Gb s SMPTE 274M 292M or 296M SD Serial Digital 270 Mb s SMPTE 259M C Impedance 750 Return Loss gt 15 dB Max Cable Length 100 meters for HD 3
11. annels is usually desired to be the same The Default button resets the gain to unity 0 dB The Invert button allows inversion of a channel to permit phase correction When an audio channel is a non audio data signal the controls on the Mixer A or Mixer B menu will be grayed out Config Audinput MixerA MixerB Audio Out Output 5 Output 6 Output 7 Output amp Peak VU D Peak VU C Peak VU _ Peak WU _ Input Ch 5 Input Ch 6 Input Ch 7 Input Ch ry Al Fa r 2 1 v dE 2 1 v dE 0 v dB 0 9 F dg Output Bus Output Bus Output Bus Output Bus Ch Assign Ch Assign Ch Assign Ch Assign a ila a fF BE Lila Hig Hig Default Invert Default Invert Detault i invert Default Invert CA BrightEye 71 and 71 F Page 15 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide lt BrightEye Z1 and 71 F Audio Out Menu Mon Assign choose the audio pair that is output on the Audio Monitor headphone jack Choices are Chan 1 2 Chan 3 4 Chan 5 6 Chan 7 8 Mon Volume set the volume level sent to the headphone jack from 0 to 100 Default is 100 Config Aud Input Mixer A Mixer E Audio Out Mon Assign Chan 1 2 E Mon Volume ge one r Det 100 x l www ensembledesigns com BrightEye 71 and 71 F Page 16 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye 71 and 71 F SOFTWARE UPDA
12. ata by modulating a light source This light source is typically a laser or laser diode similar to an LED which is turned on and off at the bit rate of the data stream The light is carried from one device to another through a glass fiber The fiber s core acts as a waveguide or lightpipe to carry the light energy from one end to another Optical transmission has two very significant advantages over metallic copper cables Firstly it does not require that the two endpoint devices have any electrical connection to each other This can be very advantageous in large facilities where problems with ground loops appear Secondly and most importantly an optical interface can carry a signal for many kilometers or miles without any degradation or loss in the recovered signal Copper is barely useful at distances of just 1000 feet Oversampling A technique to perform digital sampling at a multiple of the required sample rate This has the advantage of raising the Nyquist Rate the maximum frequency which can be reproduced by a given Sample rate much higher than the desired passband This allows more easily realized anti aliasing filters PAL During the early days of color television in North America European broadcasters developed a competing system called Phase Alternation by Line This slightly more complex system is better able to withstand the differential gain and phase errors that appear in amplifiers and transmission systems Engineers at the
13. b s standard definition signals The analog audio ports automatically configure for inputs or outputs when the module is configured for Mux or Demux Selection of Mux or Demux mode audio group selection VU status and gain can be monitored and adjusted from the front panel More advanced functionality is available via the BrightEye Control application The BrightEye 71 71 F includes an eight channel audio mixer with channel swap and shuffle capability that allows you to completely rearrange and remix audio channels It provides precise control over audio level up to 2 dB of gain to compensate for low level sources All audio processing is performed at full 24 bit resolution by a digital signal processor DSP Delay is adjustable up to one second The Data mode operation allows embedding or disembedding of Dolby E or AC3 signals A glossary of commonly used video terms is provided at the end of this manual FUNCTIONAL DESCRIPTION When configured as a multiplexer as shown in the functional block diagram below the BrightEye 71 71 F has one serial digital video input and eight analog audio inputs The audio streams are sample rate converted allowing the use of asynchronous audio then processed in the input selector and mixer shuffler The selected groups are then embedded into the video stream The output of the module is a digital stream that contains the original video signal and four audio pairs Optical Output with the 71 F The BrightEy
14. com support brighteye support If the BrightEye 71 71 F is connected to a computer running this software the menus described in the following pages are available for controlling and monitoring the unit www ensembledesigns com BrightEye 71 and 71 F Page 10 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide BrightEye Z1 and 71 F Config Menu e Input Pres indicates the presence of an HD or SD SDI input One of the following values will be displayed 720p 50 720p 59 94 720p 60 1080i 50 1080i 59 94 1080i 60 1080p 25 1080p 23 98 1080p 24 1080p 25 1080sF 25 1080sF 23 98 1080sF 24 SD 525 SD 625 No Input or Unknown e Audio Mode select the mode of the module as Mux or Demux e Mux Mode select the type of multiplexing desired from Mux Replace or Mux Cascade e Dig Ref Level select the digital reference level This pulldown lets you choose between 20 dBFS or 18 dBFS e Peak Indicator select the amount of headroom to use in determining peak levels This pulldown lets you chose between Clipping 2 dB Headroom 4 dB Headroom 6 dB Headroom 8 dB Headroom or 10 dB Headroom e Anlg Ref Level select the analog reference level This pulldown lets you choose between 10 dBu or 4 dBu e Audio Delay allows you to set the amount of audio delay from 0 to 1000 mSec Default is 0 mSec e Strip Audio when On all audio and EDH is stripped from the incoming stream Off leaves audio and EDH as it comes in on
15. e 71 F offers one optical output and one SDI output HD SD SDI Out HD SD SDI In follows input Embedder C p BE 71 HD SD SDI Out Balanced follows input Analog Audio Inputs z C amp Ch 1 2 2 Ch BE 71 71 F Audio NO0000 ae Optical Out Ch 3 4 24 bit 2Ch WOOO Audio O AtoD 8x8 8 Channel Input Mixer BE 71 F Selector Shuffler Ch 5 6 24 bit seh n DUTINE E EO Audio elay A to D Ch 7 8 24 bit Wu SS Audio 2 Ch A to D BrightEye 71 71 F Multiplexer Embedder Mode Functional Block Diagram www ensembledesigns com BrightEye 71 and 71 F Page 4 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide BrightEye Z1 and 71 F When configured as a demultiplexer as shown in the block diagram below audio signals present in the incoming video signal are extracted processed as desired and delivered as analog audio Note BrightEye 71 has two electrical SDI outputs BrightEye 71 F has one electrical SDI output and one optical output HD SD SDI Out HD SD SDI In follows input BE 71 HD SD SDI Out follows input Balanced Analog Audio Outputs HULU BE 71 71 F Optical Out PUL Disembedder 8x8 8 Channel Input Mixer BE 71 F Selector Shuffler ULI I BrightEye 71 71 F Demultiplexer Disembedder Mode Functional Block Diagram www ensembledesigns com BrightEye 71 and 71 F Page 5 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide D Brig
16. el Analog Audio Embedder Disembedder User Guide 7 lt 35 BrightEye 71 and 71 F Demultiplexer Mode When the module is set for Demux the Aud Input menu provides the controls shown below e Group A Status the status of the audio selected in Group A Select will be displayed as No Audio Present Group 1 OK Group 2 OK Group 3 OK or Group 4 OK e Group B Status the status of the audio selected in Group B Select will be displayed as No Audio Present Group 1 OK Group 2 OK Group 3 OK Group 4 OK or Off e Group A Select select the audio group to demultiplex from Group 1 Group 2 Group 3 or Group 4 e Group B Select select the audio group to demultiplex from Group 1 Group 2 Group 3 Group 4 or Off Config Audinput MixerA MixerB Audio Out Group A Status Group A Sel Group 1 OK Group 1 EZ Group E Status Group B Sel i roup 2 OK Group 2 g www ensembledesigns com BrightEye 71 and 71 F Page 13 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide e BrightEye Z1 and 71 F Mixer A Menu Outputs 1 4 provides peak VU status with the same methodology as the front panel VU indicators but on a per channel basis rather than per channel pair Peak VU indicators illuminate red when the audio level on that channel exceeds the headroom level set by the user with the Peak Indicator control Additionally the VU indicator illuminates orange when the output is above 0 VU illuminates green when
17. er Guide D BrightEye Z1 and 71 F dBFS In Digital Audio systems the largest numerical value that can be represented is referred to as Full Scale No values or audio levels greater than FS can be reproduced because they would be clipped The nominal operating point roughly corresponding to 0 VU must be set below FS in order to have headroom for audio peaks This operating point is described relative to FS so a digital reference level of 20 dBFS has 20 dB of headroom before hitting the FS clipping point DVI Digital Visual Interface DVI I integrated provides both digital and analog connectivity The larger group of pins on the connector are digital while the four pins on the right are analog EDH Error Detection and Handling is a method to verify proper reception of an SDI or HD SDI signal at the destination The originating device inserts a data packet in the vertical interval of the SDI signal and every line of the HD signal which contains a checksum of the entire video frame This checksum is formed by adding up the numerical values of all of the samples in the frame using a complex formula At the destination this same formula is applied to the incoming video and the resulting value is compared to the one included in the transmission If they match then the content has all arrived with no errors If they don t then an error has occurred Embedded Audio Digital Audio can be carried along in the same bit stream as an SDI or HD
18. evision signal refer to the time periods between lines and between fields No picture information is transmitted during these times which are required in CRT displays to allow the electron beam to be repositioned for the start of the next line or field They are also used to carry synchronizing pulses which are used in transmission and recovery of the image Although some of these needs are disappearing the intervals themselves are retained for compatibility purposes They have turned out to be very useful for the transmission of additional content such as teletext and embedded audio CAV Component Analog Video This is a convenient shorthand form but it is subject to confusion It is sometimes used to mean ONLY color difference component formats SMPTE or Beta and other times to include RGB format In any case a CAV signal will always require 3 connectors either Y R Y B Y or R G B Checkfield A Checkfield signal is a special test signal that stresses particular aspects of serial digital transmission The performance of the Phase Locked Loops PLLs in an SDI receiver must be able to tolerate long www ensembledesigns com BrightEye 71 and 71 F Page 21 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F runs of 0 s and 1 s Under normal conditions only very short runs of these are produced due to a scrambling algorithm that is used The Checkfield also referred to as the Pathological test signal
19. htEye Z1 and 71 F APPLICATIONS The BrightEye 71 71 F is a highly versatile embedder disembedder Examples of possible BrightEye 71 71 F multiplex and demultiplex applications are given below Embedder Mux And Disembedder Demux In this application BrightEye 71 71 F can be used to multiplex video and audio together to feed a video server The output from the video server can then be fed to another BrightEye 71 71 F where the audio can then be demultiplexed for another application Mux Demux HD or SD Video SDI Video HD or SD HD or SD HD or SD Router gt SDI Video SDI Video SDI Video with with m Embedded Embedded Ch 1 2 Audio Video Audio Ch 1 2 Analog Server Audio Ch 3 4 Ch3 4 Analog Sources Audio Ch 5 6 Ch 5 6 Output Ch 7 8 Ch 7 8 BrightEye 71 71 F Multiplex and Demultiplex Application Embedder Mux In this application serial digital audio from a router are combined into a single SDI output with embedded digital audio HD or SD SDI Video with Embedded Router BrightEye 71 71 F Multiplex Application HD or SD SDI Video from Camera gt a Analog Ch 1 2 Audio Sources Ch 3 4 _ F www ensembledesigns com BrightEye 71 and 71 F Page 6 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F REAR CONNECTORS All connections to the BrightEye 71 71 F are made on the rear of the unit Refer to the illustrat
20. io Embedder Disembedder User Guide D BrightEye Z1 and 71 F GLOSSARY This is a brief glossary of commonly used terms associated with this product AES EBU The digital audio standard defined as a joint effort of the Audio Engineering Society and the European Broadcast Union AES EBU or AES3 describes a serial bit stream that carries two audio channels thus an AES stream is a stereo pair The AES EBU standard covers a wide range of sample rates and quantizations bit depths In television systems these will generally be 48 kHz and either 20 or 24 bits Aspect Ratio The ratio of the horizontal and vertical measurements of an image 4 3 is the aspect ratio for standard definition video formats and television and 16 9 for high definition Converting formats of unequal ratios is done by letter boxing horizontal bars or pillar boxing vertical pillars in order to keep the Original format s aspect ratio Bandwidth Strictly speaking this refers to the range of frequencies i e the width of the band of frequency used by a signal or carried by a transmission channel Generally wider bandwidth will carry and reproduce a signal with greater fidelity and accuracy Beta Sony Beta SP video tape machines use an analog component format that is similar to SMPTE but differs in the amplitude of the color difference signals It may also carry setup on the luminance channel Blanking The Horizontal and Vertical blanking intervals of a tel
21. io into the SDI signal replacing the existing embedded content or cascading augmenting the existing embedded content e Demux Disembed audio that is in the SDI signal Group Select This control selects the audio group for embedding or disembedding with the following choices e 1 Audio Group 1 2 Audio Group 2 3 Audio Group 4 Audio Group 4 Ch 1 2 Ch 3 4 Ch 5 6 and Ch 7 8 Gain Adjustment Indicators These controls allow for quick adjustment of Gain level for these two channel pairs For independent channel adjustment and other controls use the BrightEye PC or BrightEye Mac application Ch 1 2 Ch 3 4 Ch 5 6 and Ch 7 8 VU Indicators These indicators provide information about the level of the analog outputs on these channels More detailed indicators are available through the BrightEye Control application www ensembledesigns com BrightEye 71 and 71 F Page 9 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F USING THE BRIGHTEYE CONTROL APPLICATION The BrightEye PC and BrightEye Mac applications included on CD ROM are designed to allow you to configure and control the BrightEye 71 71 F from a personal computer Instructions for installing and using this software application are given in the PDF manual on the CD ROM BrightEye PC Mac Control application software is included on CD that came with your unit or the application can be downloaded here http www ensembledesigns
22. ion and detailed explanations below for a reference of the rear connectors gt M i DC a BrightEye 71 G W Power Connection Connect the modular power supply to the 12 volt DC power input connection on the far left of the unit Use the locking ring to secure it If you don t have the power supply already contact Ensemble Designs to purchase one USB Connector Connect the USB port to a PC or Mac running BrightEye software for more comprehensive control diagnostics and upgrades to the unit BrightEye PC Mac Control application software is included on the CD that came with your unit or the application can be downloaded here http www ensembledesigns com support brighteye support HD SD SDI Out This output is a digital stream that contains the original video signal When the module is configured as a multiplexer the four Phoenix connectors are configured as inputs This external audio is multiplexed into the SDI output as desired When the module is configured as a demultiplexer this output contains the original video and the original embedded audio The audio signals present in this incoming video signal are extracted and delivered as outputs on the analog audio Phoenix connectors Analog Audio Connectors The four Phoenix connectors are either analog audio inputs or outputs depending on how the unit is configured Mux or Demux Each connector inputs or outputs 2 channels of audio 1 pair When
23. luminates green when a valid input is present on the SDI In connector e Mode The currently selected mode Mux or Demux illuminates green e Group The audio group 1 2 3 or 4 currently targeted for embedding or disembedding depending on module configuration illuminates green when the selected group contains audio and illuminates red when the selected group does not contain audio e Gain These controls allow for quick adjustment of Gain level for the four channel pairs Gain adjustment is done in conjunction with the VU indicators For independent channel adjustment and other controls use the BrightEye Control application e VU VU output level and the status of the Gain adjustment for each channel pair is indicated by the state of the VU and Gain indicators for each of the channel pairs The VU indicator illuminates red when the audio level exceeds the headroom level set by the user with the Peak Indicator control in the BrightEye Control application Additionally the VU indicator illuminates orange when the output is above 0 VU illuminates green when the output is above 20 VU and doesn t illuminate when the output is below 20 VU The Gain indicator illuminates red when the gain level has been adjusted to a value other than unity by the user The 0 VU point corresponds in the digital domain to the digital reference level 18 or 20 dBFS e Mon Vol Monitor Volume Illuminates green when monitor volume is set to unity or red
24. m BrightEye 71 and 71 F Page 23 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F HDMI The High Definition Multimedia Interface comes to us from the consumer marketplace where it is becoming the de facto standard for the digital interconnect of display devices to audio and video sources It is an uncompressed all digital interface that transmits digital video and eight channels of digital audio HDMI is a bit serial interface that carries the video content in digital component form over multiple twisted pairs HDMI is closely related to the DVI interface for desktop computers and their displays IEC The International Electrotechnical Commission provides a wide range of worldwide standards They have provided standardization of the AC power connection to products by means of an IEC line cord The connection point uses three flat contact blades in a triangular arrangement set in a rectangular connector The IEC specification does not dictate line voltage or frequency Therefore the user must take care to verify that a device either has a universal input capable of 90 to 230 volts either 50 or 60 Hz or that a line voltage switch if present is set correctly Interlace Human vision can be fooled to see motion by presenting a series of images each with a small change relative to the previous image In order to eliminate the flicker our eyes need to see more than 30 images per second This is accompli
25. mber One Connector SP UPC Type SD SMPTE 297M optical equivalent of 259M HD SMPTE 274M or 296M Wavelength 1310 nm non CWDM 1550 non CWDM by special order Power 7 dBm Max Cable Length 20 km For greater distances or higher power and larger loss budgets please contact the factory Fiber Type Single Mode Multi mode compatible with 8 dB attenuation at transmit end Number One General Specifications Size 5 625 W x 0 8 H x 5 5 D 143 mm x 20 mm x 140 mm including connectors Weight 1 Ib 5 oz Power 12 volts 8 watts 100 230 VAC modular power supply not included Temperature Range O to 40 C ambient Relative Humidity 0 to 95 non condensing Altitude O to 10 000 feet www ensembledesigns com BrightEye 71 and 71 F Page 19 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide D BrightEye Z1 and 71 F BrightEye Power Supply Information Below is a list of power supplies and optional items that may have come with your BrightEye BEPS BrightEye Individual Power Supply BEPS6 Spider Power Supply This powers 6 single high BrightEyes or 3 double high BrightEyes BEPS6 RP Redundant Power Supply for Spider BERKMT BrightEye Rack Mount This holds 6 single high BrightEyes or 3 double high BrightEyes or a combination BEBP BrightEye Blank Panel Single high for empty slots in Rack Mount BEAC Analog Audio Breakout Cable www ensembledesigns com BrightEye 71 and 71 F Page 20 HD SD 8 Channel Analog Aud
26. mer type heterodyne systems like VHS Time base error will render a signal unusable for broadcast or editing purposes Tri Level Sync An analog sync reference signal that is used in High Definition systems Tri Level Sync is constructed with three signal levels the sync pulses extend above and below a mid level average voltage the blanking level Unlike conventional analog sync which is bi level the proper 50 pickoff point is already identified in Tri Level Sync This contributes to lower jitter in digital systems VGA Video Graphics Array Traditional 15 pin analog interface between a PC and monitor YUV Strictly speaking YUV does not apply to component video The letters refer to the Luminance Y and the U and V encoding axes used in the PAL composite system Since the U axis is very close to the B Y axis and the V axis is very close to the R Y axis YUV is often used as a sort of shorthand for the more long winded Y R Y B Y Y Cr Cb In digital component video the luminance component is Y and the two color difference signals are Cr R Y and Cb B Y Y Pr Pb In analog component video the image is carried in three components The luminance is Y the R Y color difference signal is Pr and the B Y color difference signal is Pb www ensembledesigns com BrightEye 71 and 71 F Page 27
27. of the signal passes down the fiber A single mode fiber used in an optical SDI system can carry a signal for up to 20 kilometers Single mode fibers require particular care in their installation due to the extremely small optical aperture that they present at splice and connection points See also Multi mode www ensembledesigns com BrightEye 71 and 71 F Page 26 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F TBC A Time Base Corrector is a system to reduce the Time Base Error in a signal to acceptable levels It accomplishes this by using a FIFO First In First Out memory The incoming video is written into the memory using its own jittery timing This operation is closely associated with the actual digitization of the analog signal because the varying position of the sync timing must be mimicked by the sampling function of the analog to digital converter A second timing system genlocked to a stable reference is used to read the video back out of the memory The memory acts as a dynamically adjusting delay to smooth out the imperfections in the original signal s timing Very often a TBC will also function as a Frame Synchronizer See also Frame Sync Time Base Error Time base error is present when there is excessive jitter or uncertainty in the line to line output timing of a video signal This is commonly associated with playback from video tape recorders and is particularly severe with consu
28. order to faithfully reproduce an image ScH Phase Used in composite systems SCH Phase measures the relative phase between the leading edge of sync on line 1 of field 1 and a continuous subcarrier sine wave Due to the arithmetic details of both PAL and NTSC this relationship is not the same at the beginning of each frame In PAL the pattern repeats every 4 frames 8 fields which is also known as the Bruch Blanking sequence In NTSC the repeat is every 2 frames 4 fields This creates enormous headaches in editing systems and the system timing of analog composite facilities SDI Serial Digital Interface This term refers to inputs and outputs of devices that support serial digital component video This could refer to standard definition at 270 Mb s HD SDI or High Definition Serial Digital video at 1 485 Gb s or to the newer 3G standard of High Definition video at 2 97 Gb s SMPTE The Society of Motion Picture and Television Engineers is a professional organization which has done tremendous work in setting standards for both the film and television industries The term SMPTE is also shorthand for one particular component video format luminance and color difference Single mode A Single mode or monomode optical fiber carries an optical signal on a very small diameter 9 micron core surrounded with cladding The small diameter means that no internally reflected lightwaves will be propagated Thus only the original mode
29. shed in television systems by dividing the lines that make up each video frame which run at 25 or 30 frames per second into two fields All of the odd numbered lines are transmitted in the first field the even numbered lines in the second field In this way the repetition rate is 50 or 60 Hz without using more bandwidth This trick has worked well for years but it introduces other temporal artifacts Motion pictures use a slightly different technique to raise the repetition rate from the original 24 frames that occur each second they just project each one twice IRE Video level is measured on the IRE scale where 0 IRE is black and 100 IRE is full white The actual voltages that these levels correspond to can vary between formats ITU R 601 This is the principal standard for standard definition component digital video It defines the luminance and color difference coding system that is also referred to as 4 2 2 The standard applies to both PAL and NTSC derived signals They both will result in an image that contains 720 pixels horizontally with 486 vertical pixels in NTSC and 576 vertically in PAL Both systems use a sample clock rate of 27 MHz and are serialized at 270 Mb s Jitter Serial digital signals either video or audio are subject to the effects of jitter This refers to the instantaneous error that can occur from one bit to the next in the exact position of each digital transition Although the signal may be at the correct
30. the input signal Mixer A Mixer E Config Aud Input Audio Out Input Pres Audio Mode Mux Mode SD 525 Mux Mux Replace I Dig Ref Level Peak Indicator Anlg Ref Level _ 20dBFS 6 dB Headroom r d 4 dBu 24 Audio Delay Default t 148 7 msec Strip Audia f off 7 www ensembledesigns com BrightEye 71 and 71 F Page 11 HD SD 8 Channel Analog Audio Embedder Disembedder User Guide X BrightEye Z1 and 71 F Audio Input Menu The appearance of the Input menu will depend on the mode of the module and the type of audio being used Multiplexer Mode When the module is set for Mux the Aud Input menu provides the controls shown below e Group A Status the status of the audio selected in Group A Select will be displayed as No Audio Present Group 1 OK Group 2 OK Group 3 OK or Group 4 OK e Group B Status the status of the audio selected in Group B Select will be displayed as No Audio Present Group 1 OK Group 2 OK Group 3 OK Group 4 OK or Off e Group A Select select the audio group to multiplex from Group 1 Group 2 Group 3 or Group 4 e Group B Select select the audio group to multiplex from Group 1 Group 2 Group 3 Group 4 or Off Config Audinput MixerA MixerB Audio Out Group A Status Group A Sel Group 1 OK Group 1 g Group B Status Group E Sel Group 2 OK Group 2 g www ensembledesigns com BrightEye 71 and 71 F Page 12 HD SD 8 Chann
31. the output is above 20 VU and doesn t illuminate when the output is below 20 VU Inputs Ch 1 4 these controls provide mixing and output level control for audio channels 1 to 4 of the selected audio group The text field at the top of the control indicates the amount of gain applied to the channel in dB The gain level can be adjusted by moving the vertical slider control using the up down arrows or entering a desired level directly in the field from 70 dB to 12 dB On the right hand side of the control are Out Bus Ch Assign buttons These buttons control which analog output channel the audio channels are mapped to It is possible to map an Input channel to anywhere from zero to eight output channels The Tie function is used for stereo operation where gain of a pair of channels is usually desired to be the same The Default button resets the gain to unity 0 dB The Invert button allows inversion of a channel to permit phase correction When an audio channel is a non audio data signal the controls on the Mixer A or Mixer B menu will be grayed out Config Aud Input MixerA MixerB Audio Out Output 1 Output 2 Output 3 Output 4 Peak WU Peak WU Peak WU Peak WU Input Ch 1 Input Ch 2 Input Ch 3 Input Ch 4 a a a a 1 3 we 1 3 D dE 0 7 dE 0 q Output Bus Output Bus Output Bus i Output Bus Ch Assign Ch Assign Ch Assign LIE iE BI Ch Assign Be Kie AA og Hig Hig BiG Default
32. throughout the world either as PAL or NTSC It is also referred to as Encoded video Color Difference Color Difference systems take advantage of the details of human vision We have more acuity in our black and white vision than we do in color This means that we need only the luminance information to be carried at full bandwidth we can scrimp on the color channels In order to do this RGB information is converted to carry all of the luminance Y is the black and white of the scene in a single channel The other two channels are used to carry the color difference Noted as B Y and R Y these two signals describe how a particular pixel differs from being purely black and white These channels typically have only half the bandwidth of the luminance Decibel dB The decibel is a unit of measure used to express the ratio in the amplitude or power of two signals A difference of 20 dB corresponds to a 10 1 ratio between two signals 6 dB is approximately a 2 1 ratio Decibels add while the ratios multiply so 26 dB is a 20 1 ratio and 14 dB is a 5 1 ratio There are several special cases of the dB scale where the reference is implied Thus dBm refers to power relative to 1 milliwatt and dBu refers to voltage relative to 775V RMS The original unit of measure was the Bel 10 times bigger named after Alexander Graham Bell www ensembledesigns com BrightEye 71 and 71 F Page 22 HD SD 8 Channel Analog Audio Embedder Disembedder Us
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