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Reference Guide: EN8000 MPEG-4 Part 10 (H.264/AVC) Encoders 

Page 1-1 

ST.RE.E10233.1 

 

Chapter 1 

1. 

Introduction to the Basic Encoder

 

Contents 

1.1

 

Scope of this Reference Guide ......................... 1-3

 

1.1.1

 

Who Should Use This Reference 
Guide ..................................................... 1-3

 

1.1.2

 

Software Version ................................... 1-3

 

1.1.3

 

What Equipment is Covered by This 
Reference Guide.................................... 1-3

 

1.1.4

 

Optional Features .................................. 1-4

 

1.1.5

 

Service Availability ................................. 1-4

 

1.2

 

Modes of operation ........................................... 1-4

 

1.2.1

 

MPEG-4/H.264 AVC over TS................. 1-4

 

1.2.2

 

Picture-in-Picture ................................... 1-4

 

1.3

 

Video Encoding ................................................. 1-5

 

1.3.1

 

SD Video Inputs (EN8030 Encoder) ...... 1-5

 

Video Input Types .................................. 1-5

 

Serial Digital Video Input Error 
Detection and Handling (EDH)............... 1-5

 

Video Pre-processing............................. 1-5

 

Internal Frame Synchroniser.................. 1-5

 

Output on Video Loss ............................ 1-6

 

1.3.2

 

HD Video Input (EN8090 Encoder) ........ 1-6

 

Video Input Types .................................. 1-6

 

Video Pre-processing............................. 1-6

 

Downsampler ......................................... 1-7

 

Internal Frame Synchroniser.................. 1-7

 

Output on Video Loss ............................ 1-7

 

1.3.3

 

Video Encoding...................................... 1-7

 

H.264/AVC Encoding ............................. 1-7

 

1.4

 

Audio Encoding ................................................. 1-8

 

1.4.1

 

Audio Inputs (EN8090 HD Encoder) ...... 1-8

 

Audio Channels ..................................... 1-8

 

Output on Digital Audio Loss ................. 1-8

 

Test Tones............................................. 1-8

 

1.4.2

 

Audio Inputs (EN8030 SD Encoder) ...... 1-9

 

Audio Channels ..................................... 1-9

 

Output on Digital Audio Loss ................. 1-9

 

Test Tones .............................................1-9

 

1.4.3

 

Audio Encoding ....................................1-10

 

AAC (MPEG-2 and MPEG-4) ...............1-10

 

MPEG-1 Layer II ..................................1-10

 

Dolby Digital .........................................1-11

 

Pass-thru..............................................1-11

 

1.5

 

VBI Line Processing Modes ............................1-11

 

Transport of VBI Data ..........................1-11

 

Teletext Extraction ...............................1-12

 

1.6

 

Guided Tour ....................................................1-12

 

1.6.1

 

Enclosure .............................................1-12

 

1.6.2

 

Front Panel Description........................1-12

 

1.6.3

 

Rear Panel Description ........................1-13

 

 

List of Figures 

Figure 1.1: EN8030 Encoder Front View .............................. 1-3

 

Figure 1.2: Front Panel Indicators ...................................... 1-13

 

 

List of Tables 

Table 1.1: Equipment Model Descriptions ............................ 1-3

 

Table 1.2: Encapsulation Mode ............................................ 1-4

 

Table 1.3: Supported High Definition Scanning Modes ........ 1-6

 

Table 1.4: Supported VBI Data Formats............................. 1-12

 

Table 1.5: Front Panel Indicators........................................ 1-12

 

 

Содержание EN8000

Страница 1: ...ST RE E10233 1 Issue 1 REFERENCE GUIDE EN8000 MPEG 4 Part 10 H 264 AVC Encoders Software Version 1 0 and later EN8030 Standard Definition Encoder EN8090 High Definition Encoder ...

Страница 2: ... DEUTSCH LESEN SIE ZUERST DIESEN HINWEIS Sollte Ihnen der Inhalf dieses Handbuches nicht klar verständlich sein dann BEDIENEN SIE DIESE GERÄTE NICHT Eine Übersetzung des Handbuches in diese Sprache ist gegen Berechnung lieferbar ESPAÑOL LEA ESTE AVISO PRIMERO Si no entiende el contenido de este manual NO OPERE ESTE EQUIPO Podemos asimismo suministrarle una traducción de este manual al idioma previ...

Страница 3: ...lly This chapter describes local control in detail Provides the power up down procedures and other general operating control set up procedures Chapter 5 Web Browser Interface This chapter details how to access and use the Web Browser Interface for a range of diagnostic and other utilities Chapter 6 Picture in Picture Describes the operation and use of the Picture in Picture function The software o...

Страница 4: ...ide can be ordered from the address shown on page viii If passing the equipment to a third party also pass on the relevant documentation Issues of this Reference Guide are listed below Issue Date Software Version Comments 1 Mar 2007 1 0 Initial release The following manuals are also associated with this equipment ST US E10233 User Guide for EN8030 ST US E10234 User Guide for EN8090 ST AN E10074 Up...

Страница 5: ...ce Guide Registered Trademarks AC 3 Dolby Digital and Pro Logic are registered trademarks of Dolby Laboratories Licensing Corporation Musicam is a registered trademark of Thomson and Télédiffusion de France TDF Europe and is a registered trademark of CCS now Musicam USA Incorporated USA Ethernet is a registered trademark of Xerox Corporation XILINX is a registered trademark of Xilinx Inc Trademark...

Страница 6: ...RMATION WHICH IF STRICTLY OBSERVED WILL PREVENT PERSONAL INJURY OR DEATH OR DAMAGE TO PERSONAL PROPERTY OR THE ENVIRONMENT THEY ARE BOXED AND SHADED FOR EMPHASIS AS IN THIS EXAMPLE AND ARE PLACED IMMEDIATELY PRECEDING THE POINT AT WHICH THE READER REQUIRES THEM CAUTIONS Cautions give information which if strictly followed will prevent damage to equipment or other goods They are boxed for emphasis ...

Страница 7: ...n Basic Advantage is the value for money choice for you Basic provides you with year by year Service long after the warranty has expired For systems support you can choose either Gold or Silver Advantage These packages are designed to save you costs and protect your income through enlisting the help of TANDBERG Television support specialists VOYAGER Advantage is the truly mobile service solution T...

Страница 8: ...ress training tandbergtv com Internet Address http www tandbergtv com Customer Services and Technical Training Postal Address Tandberg Television Unit 2 Strategic Park Comines Way Hedge End Southampton Hampshire SO30 4DA United Kingdom Return of Equipment If you need to return equipment for repair please contact the Customer Services Helpdesk on 44 0 23 8048 4455 A Returns Authorisation Number RAN...

Страница 9: ...ampler 1 7 Internal Frame Synchroniser 1 7 Output on Video Loss 1 7 1 3 3 Video Encoding 1 7 H 264 AVC Encoding 1 7 1 4 Audio Encoding 1 8 1 4 1 Audio Inputs EN8090 HD Encoder 1 8 Audio Channels 1 8 Output on Digital Audio Loss 1 8 Test Tones 1 8 1 4 2 Audio Inputs EN8030 SD Encoder 1 9 Audio Channels 1 9 Output on Digital Audio Loss 1 9 Test Tones 1 9 1 4 3 Audio Encoding 1 10 AAC MPEG 2 and MPEG...

Страница 10: ...Introduction to the Basic Encoder Page 1 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 11: ...n operating the Encoder via the Web browser and highlights some specific aspects of the Front Panel control It does not cover the Engineering menu or the use of a Telnet session 1 1 2 Software Version This version of the Reference Guide has been written to cover the functionality in software version 1 0 for the EN8030 Encoder and software version 1 0 for the EN8090 Encoder 1 1 3 What Equipment is ...

Страница 12: ...utput The elementary streams from the Intelligent Compression Engine ICE card are multiplexed on the motherboard of the Encoder into a compliant single program transport stream Hence the combined output of these streams is through the ASI outputs on the motherboard Option An IP Ethernet output card EN8000 HWO IPTSDUAL can be fitted to the EN8000 range of encoders to allow the transmission of TS ov...

Страница 13: ...ocessing The efficiency of the encoding can be enhanced through pre processing of the incoming video using functions such as Support for different resolutions including the standard set of video picture resolutions 720 704 640 576 544 528 480 352 in both 625 and 525 line operation An internal frame synchroniser The aspect ratio for the incoming video feed as defined in the VBI can be maintained in...

Страница 14: ...tandard 720 x 1280 Progressive 50 00 frame s Native SMPTE296M 720 x 1280 Progressive 59 94 frame s Native SMPTE296M 1080 x 1920 Interlaced 25 00 frame s Native SMPTE274M 1080 x 1920 Interlaced 29 97 frame s Native SMPTE274M Video Pre processing The efficiency of the encoding can be enhanced through pre processing of the incoming video using functions such as Support for reduced horizontal resoluti...

Страница 15: ... ISO IEC 14496 10 specification with a maximum bitrate of 10 0 Mbit s for SD operation and 20 0 Mbit s for HD operation The H 264 AVC video encoding functions include Support for the following tools Spatial Intra prediction Intra macro blocks are predicted from surrounding previously coded macro blocks Sub pixel motion vectors This allows motion to be more accurately represented CABAC Context Adap...

Страница 16: ...ng the audio inputs via five connectors There are four XLR female connectors with the fifth cable being a BNC which provides an AES EBU 75 Ω digital reference output Audio Channels The HD Encoder has the possibility of two separate audio encoding systems Audio A and B Audio inputted through AUDIO IN or HD SDI can be routed to the audio encoder streams A and B that can currently implement MPEG 1 La...

Страница 17: ...of the built in asynchronous sample rate converters This applies only to audio that is not pre encoded Audio Channels The SD Encoder also has the possibility of three separate audio encoding systems Audio A and B the audio encoder is capable of processing two stereo pairs inputted from either an SDI embedded source a digital source AES EBU or an analogue source termination impedance 600 Ω or 20 kΩ...

Страница 18: ...ile The bitstream is encapsulated in the Transport Stream using LATM LOAS Low overhead Audio Transport Multiplex Low overhead Audio Stream The implementation is compliant to ETSI TS 101 154 V1 7 1 Annex H MPEG 4 HE AAC v2 The actual AAC bitstream is compliant to the High Efficiency HE AAC v2 profile as described in ISO IEC 14496 3 This allows both Spectral Band Replication SBR and Parametric Stere...

Страница 19: ... not encoded as part of the active image by the video encoding module for efficiency reasons because the VBI is not visible to the viewer So this information termed VBI data must be carried separately in some other form within the bitstream Transport of VBI Data There are two methods to achieve this Embedding the VBI data within the video elementary stream all video coding technologies allow the c...

Страница 20: ...e not erroneously extracted The extracted Teletext lines are formatted into PES packets according to the DVB specification The Teletext PES packets are time stamped to allow correct alignment of subtitling captions with decoded video The following Teletext services are extractable System B WST Teletext Video Programming Teletext VPT Programme Delivery Control PDC Inverted Teletext 1 6 Guided Tour ...

Страница 21: ...ure 1 2 Front Panel Indicators 1 6 3 Rear Panel Description The Encoder provides connectors at the rear panel see Chapter 2 Installing the Equipment All except the power connector are physically located on the separate modules that comprise the Encoder Cancel Navigation keys to select options Enter POWER Green ALARM Red ...

Страница 22: ...Introduction to the Basic Encoder Page 1 14 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 23: ...or 2 8 2 5 3 Connecting the Equipment to the D C Power Supply 2 8 2 5 4 Protective Earth Technical Earth 2 9 2 6 Signal Connections For the Basic Unit 2 9 2 6 1 Introduction 2 9 2 6 2 Connecting Up the Basic Encoder 2 10 2 6 3 Power Supply 2 11 2 6 4 Technical Earth 2 11 2 6 5 Video Inputs 2 11 SDI IN 2 11 H SYNC 2 11 COMP VIDEO 2 11 HD SDI IN 2 12 2 6 6 Audio Inputs 2 12 AUDIO IN 2 2 12 AUDIO IN ...

Страница 24: ... H SYNC Connector 2 11 Table 2 4 COMP VIDEO Connector 2 12 Table 2 5 HD SDI Connector 2 12 Table 2 6 Audio In 2 Connector 2 12 Table 2 7 Audio In Connector 2 13 Table 2 8 ASI OUT 1 2 and 3 Connectors 2 13 Table 2 9 Ethernet 1 and 2 Connector 2 14 Table 2 10 Alarm Connector 2 14 Table 2 11 RS 232 Data Connector Base Board Asynchronous 2 15 Table 2 12 RS 422 Data Connector Base Board Synchronous 2 1...

Страница 25: ...ss Lightning Protection WARNING IF THE ENCODER HAS BEEN SUBJECT TO A LIGHTNING STRIKE OR POWER SURGE WHICH HAS STOPPED IT WORKING DISCONNECT THE POWER IMMEDIATELY DO NOT REAPPLY POWER UNTIL IT HAS BEEN CHECKED FOR SAFETY IF IN DOUBT CONTACT TANDBERG TELEVISION CUSTOMER SERVICES Where appropriate ensure this product has an adequate level of lightning protection Alternatively during a lightning stor...

Страница 26: ...s Check with Customer Services beforehand 2 2 2 Moving the Equipment Safely Do not place this product on an unstable cart stand bracket or table The product may fall causing serious injury and serious damage to the product Use only with a cart stand bracket or table recommended by TANDBERG Television An appliance and cart combination should be moved with care Quick stops excessive force and uneven...

Страница 27: ... A FIRE OR ELECTRIC SHOCK NEVER SPILL LIQUID OF ANY KIND ON THE PRODUCT CAUTIONS 1 Openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating and these openings must not be blocked or covered This product should never be placed near or over a radiator or heat register This product should not be placed in a built in instal...

Страница 28: ...ng General Check that the a c power cable is suitable for the country in which the Encoder is to be used WARNINGS 1 IF THE MOULDED PLUG FITTED TO THE MAINS CABLE SUPPLIED WITH THIS UNIT IS NOT REQUIRED PLEASE DISPOSE OF IT SAFELY FAILURE TO DO THIS MAY ENDANGER LIFE AS LIVE ENDS MAY BE EXPOSED IF THE REMOVED PLUG IS INSERTED INTO A MAINS OUTLET 2 POWER SUPPLY CORDS SHOULD BE ROUTED SO THAT THEY AR...

Страница 29: ...ect a wire between the Technical earth terminal and a suitable point on the rack 2 Eliminate the migration of stray charges when connecting between equipment WARNING IF THE TERMINAL SCREW HAS TO BE REPLACED USE AN M3 X 6MM LONG POZIDRIV PANHEAD USING A LONGER SCREW MAY CAUSE A SAFETY HAZARD Connecting the Encoder to the A C Power Supply WARNINGS 1 DO NOT OVERLOAD WALL OUTLETS AND EXTENSION CORDS A...

Страница 30: ...or longer cable runs For protection of the d c wiring a circuit breaker of maximum 10A is recommended 2 5 2 Location of the D C Input Connector The connector is located at the right hand rear of the equipment WARNING THE 48 VDC ENCODER IS NOT FITTED WITH AN ON OFF SWITCH ENSURE THAT THE SUPPLY HAS A SUITABLE MEANS OF ISOLATION THAT IS EASILY ACCESSIBLE FAILURE TO ISOLATE THE EQUIPMENT PROPERLY MAY...

Страница 31: ...al earth potential To do this connect a wire between the Technical earth terminal and a suitable point on the rack Eliminate the migration of stray charges when connecting between equipment WARNING IF THE TERMINAL SCREW HAS TO BE REPLACED USE AN M3 X 6MM LONG POZIDRIV PANHEAD USING A LONGER SCREW MAY CAUSE A SAFETY HAZARD 2 6 Signal Connections For the Basic Unit 2 6 1 Introduction All signal conn...

Страница 32: ...ation relating to Options and Upgrades EN8030 SD EN8090 HD Encoders Audio Inputs AUDIO IN RS 232 DATA RS 422 DATA Serial Digital Interface Studio Black and Burst Analogue Composite Video Audio Input AES EBU Reference 10BaseT Alarm DVB ATSC Transport Stream SD Video SDI IN H SYNC COMP VIDEO Control ETHERNET 1 Data RS 232 Data Input RS 422 Data Input Output TS ASI OUT1 ASI OUT2 ASI OUT3 ALARM Alarm ...

Страница 33: ...handling EDH as defined by the specification SMPTE RP 165 1994 Error Detection Checkwords and Status Flags for Use in Bit Serial Digital Interfaces for Television Table 2 2 SDI Connector Pin Signal Centre Video Input Screen Ground Impedance 75 Ω H SYNC Studio Black and Burst should be fed to the 75 Ω BNC connector H SYNC This will then genlock the Encoder to the Studio system This method may be re...

Страница 34: ...the audio cable to the AUDIO IN 2 connector The 15 way D type male connector is used to provide four stereo pairs of AES EBU digital audio The Encoder is supplied with a break out cable which plugs into this connector and provides a more convenient means of connecting the audio signals via five connectors There are four XLR female connectors with the fifth cable being a BNC that provides an AES EB...

Страница 35: ... Left Channel B AES EBU B 12 Left Channel B AES EBU B 6 Right Channel B 13 Right Channel B 7 AES EBU Reference Signal 15 AES EBU Reference Ground Pins 2 5 8 11 14 Not connected NOTES 1 In analogue mode termination is either 20 kΩ or 600 Ω 2 In AES EBU mode termination is 110 Ω 3 When the Encoder is powered down the digital channel is selected with 110 Ω termination The XLR cable for the digital in...

Страница 36: ...ingle switched Ethernet channel Ethernet1 is selected as default at power up If a carrier is not detected on Ethernet1 then the input switches to Ethernet2 This gives a redundant Ethernet control via two hubs Table 2 9 Ethernet 1 and 2 Connector Pin Signal Pin Signal 1 Tx Out 4 5 Not connected 2 Tx Out 6 Rx In 3 Rx In 7 8 Not connected Alarm If required connect an external status monitoring device...

Страница 37: ...D type connector 3 25 way connectors have Received Data on pin 3 and Transmit Data on pin 2 see RS 232 specification 4 XON OFF flow control may be used with this port RS 422 Connector A 15 way D type female connector provides an RS 422 synchronous serial communications data input interface Table 2 12 RS 422 Data Connector Base Board Synchronous Remote DTE Encoder RS 422 DCE Signal Name Signal Dire...

Страница 38: ...ialisation and self test routines 2 Confirm that the green Power LED is lit and that the red Alarm LED is unlit After the boot period the Encoder start up screen is displayed NOTES 1 The fans on the Encoder can be temperature controlled so may not be on if the ambient temperature is low Refer to Annex B Technical Specification for more information 2 During initialisation invalid PIDs may appear mo...

Страница 39: ...t Output Card EN8000 HWO IPTSDUAL 3 7 3 3 1 Overview 3 7 3 3 2 Assembly 3 7 Rear Panel 3 7 Ethernet Outputs 3 7 3 3 3 Dual IP Output Overview 3 8 Overview 3 8 3 3 4 Dual IPNIC Control 3 9 3 3 5 IP Streamer Output 3 10 List of Figures Figure 3 1 Encoder Protocol Stack 3 7 Figure 3 2 View from Back of Encoder 3 7 Figure 3 3 Dual IP Control and IP Streamer Output Menus 3 8 List of Tables Table 3 1 Ha...

Страница 40: ...Options and Upgrades Page 3 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 41: ... of Cards Daughter Card Options EN8000 HDC AUD Extra Audio Encoding Daughter Card Provides 5 1 audio service and a stereo audio service Part No S14019 S14285 0 not a slot option fits on the Motherboard 1 Hardware Options EN8000 HWO IPTSDUAL Dual IP Ethernet Output Card Part No S13600 1 1 NOTE Empty option slots must be fitted with a blanking plate 3 1 2 Limitations on Number of Option Modules In a...

Страница 42: ...l to the image Removing the noise improves the quality of the encoding by removing the artifacts that detract from the viewing experience and so allocate more bits for the encoding of the true image This is a pre processor function that applies directly to the input video Hence it is applicable to all video encoding within the unit This license adds the option Noise Reduction to the Video Source m...

Страница 43: ...ES02 DATA RS 232 and RS 485 data input 3 3 M2 ES02 CVBS Composite video input 3 3 M2 ES02 ACON Auto Concatenation 3 3 M2 ES02 SDI SDI INPUT License key 3 3 M2 ES02 AUDIO2 MPEG 1 audio 3 3 EN8000 SWO MPEG4 MPEG 4 video encoding enabled 3 3 EN8000 SWO HD Enables High Definition operation 3 3 1 4 How to See Which Options are Fitted Enabled The Encoder has a number of hardware and software options To ...

Страница 44: ...r provides four digital AES EBU stereo pairs Table 3 4 Audio In Connector Pin Signal Pin Signal 1 AES EBU 1A 9 AES EBU 1A 3 AES EBU 2A 10 AES EBU 2A 4 AES EBU 1B 12 AES EBU 1B 6 AES EBU 2B 13 AES EBU 2B 7 AES EBU Reference Output Signal 15 AES EBU Reference Ground 2 5 8 11 14 Not connected NOTES 1 In AES EBU mode termination is 110 Ω 2 When the Encoder is powered down the digital channel is select...

Страница 45: ...stream packets into IP data frames is done according to the protocol stack shown in Figure 3 1 Between one and seven MPEG 2 transport stream packets can be put in each UDP packet The data link layer is Ethernet according to IEEE 802 3 802 3u auto sensing 100 1000 Mbit s twisted pair via RJ 45 connector Figure 3 1 Encoder Protocol Stack 3 3 2 Assembly The option card has 2 RJ 45 connectors called G...

Страница 46: ...ted with each Transport Stream output see for details Figure 3 3 Dual IP Control and IP Streamer Output Menus Dual IPNIC Control IP Streamer Output Output Menu Setup Menu Dual IPNIC Control Port Config TS Output IP Address 1 Network Mask 1 Gateway 1 MAC Address 1 Port Speed 1 Hardware Version Software Version Firmware Version Shaded options are showing status and cannot be changed IP Streamer Outp...

Страница 47: ...he source IP address associated with the IP Ethernet output Network Mask 1 2 Allows the operator to modify the network mask setting associated with the IP address Gateway 1 2 Allows the operator to modify the address of the router for transmission of IP packets to other networks If the Destination IP Address setting indicates an IP address not residing on the local network segment the video traffi...

Страница 48: ...ach UDP frame 1 7 For bitrates in excess of 15 Mbit s it is recommended to use the maximum setting of 7 1 2 Source UDP Port Modifies the source port of the IP packets 0 65535 1 2 Dest IP Address This is the IP address to which the video stream should be sent It can either be a unicast IP address or it can be a class D multicast address 224 0 0 1 239 255 255 255 Choosing a multicast IP address enab...

Страница 49: ...1 2 Introduction 4 3 4 1 3 Navigating the Display Screens 4 3 4 1 4 Navigating the Menus 4 3 4 1 5 Changing a Setting 4 3 For Multiple Choice Entry 4 3 For Text or Numeric Entry 4 4 4 2 A udio V ideo Menu 4 4 4 3 Setting the Encoder Control IP Address 4 4 4 4 Errors and Diagnostic Menus 4 4 4 5 Front Panel Set up Password 4 5 List of Figures Figure 4 1 Navigation Keys and Buttons 4 3 ...

Страница 50: ...Operating the Equipment Locally Page 4 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 51: ...ee Figure 4 1 The function of the navigation keys depends where you are in the menu structure See the following sections for details Figure 4 1 Navigation Keys and Buttons From the Summary Screen select the Main Menu by pressing ENTER RIGHT UP or DOWN Return to the Summary Screen from the Main Menu by pressing LEFT 4 1 4 Navigating the Menus To navigate the menus valid keys are DOWN Scrolls down t...

Страница 52: ...it This can then be toggled between plus and minus by pressing the UP DOWN keys 4 2 A udio V ideo Menu The A V Menu contains some basic video and audio options They can all be changed with the exception of the audio input levels These are only indicators of the current audio input level and are status only Only those video input selections compatible with the currently selected frame rate can be c...

Страница 53: ...u which is selected from the System Menu by pressing the Advanced softkey Path Summary Screen More Setup System Advanced If the Set up Password option is set to On then a password is required to change any parameters CAUTION Only set this option if you know the password The default is 0123456789 Another menu item Current Password is only available from the front panel when Set up Password Off When...

Страница 54: ...Operating the Equipment Locally Page 4 6 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 55: ... 5 7 2 Video Multiple Services Menu 5 24 5 7 3 Video HD Video Source Menu 5 25 5 7 4 Video SD Video Source Menu 5 27 5 7 5 Video H 264 AVC Encoder Menu 5 29 5 7 6 Video PIP Encoder Menu 5 31 5 7 7 Vertical Blanking Interval VBI Menu 5 35 5 8 Audio Menu 5 37 5 8 1 Top level Menu 5 37 5 8 2 Audio Control Menu 5 37 5 8 3 Advanced Audio 5 38 Introduction 5 38 Advanced Audio Webpage Options 5 39 5 8 4 ...

Страница 56: ...6 Figure 5 26 Configure Output Selection Mux Webpage 5 56 Figure 5 27 Configuration Graphical Explanation 5 59 Figure 5 28 Typical Stored Configurations Tabbed Page 5 60 Figure 5 29 Save Load Configurations 5 61 List of Tables Table 5 1 ATSC System Information Option Descriptions 5 13 Table 5 2 DVB System Information Option Descriptions 5 14 Table 5 3 Multiple Service Option Descriptions 5 16 Tabl...

Страница 57: ...owing procedures describe the set up using Internet Explorer the steps are similar for FireFox NOTE Active Scripting must be enabled in Microsoft Internet Explorer to enable the menu functionality 5 2 How to Set up the Web Browser Interface To set up Internet Explorer proceed as follows 1 In Internet Explorer version 5 on the menu bar click Tools Internet Options This displays the Internet Options...

Страница 58: ...t be displayed Click OK to save the changes and return to the Internet Options dialog box 5 If Internet Explorer currently connects to the Internet via a proxy server then it must be reconfigured to connect directly to the Encoder bypassing the proxy server Click the Connections tab see Figure 5 3 Figure 5 3 Connections Tab 6 Click LAN Settings to open the Local Area Network LAN Settings dialog bo...

Страница 59: ...ttings Dialog Box 7 Click Advanced to open the Proxy Settings dialog box see Figure 5 5 Figure 5 5 Proxy Settings Dialog Box 8 In the Exceptions area type the IP address of the Encoder 9 Click OK as many times as necessary to close all dialog boxes until only the Internet Explorer window is open Advanced Type the IP address of the Encoder ...

Страница 60: ...ess of the Encoder to be accessed in the address bar e g http 172 16 197 245 press Return and a connection is established After a few seconds a window similar to that shown in Figure 5 6 will be displayed Figure 5 6 Welcome screen for Web Interface Internet Explorer will then request a username and password to give access to the Menu system The username is Engineer and the password is password unl...

Страница 61: ...s allowed Customer Support This page links to the TANDBERG Television Internet site Licenced Features Shows a list of all the features that are and can be enabled when the appropriate licence is purchased Installed Modules Gives details of which options are installed in the Encoder Event Log Shows the events and tests that have been performed with the Encoder since the Encoder was last powered NV ...

Страница 62: ...D Download Utilities This allows you to download an osd zip file that consists of an OSD Creator Creator exe and OSD Loader OSD exe There is a logo overlay facility allowing broadcasters to trademark material whereby the Encoder is able to overlay broadcasters trademarks logos onto the active video See Annex D Creating and Downloading a Logo for information on how to use the programs SNMP MIB This...

Страница 63: ...ions Parameter Menu Path Source DVB ATSC Service Name Configure System Menu Service Info Service Name Long Channel Name 3 3 Packet Length Configure Mux Packet Length 3 3 Mux Bitrate Configure Mux Bitrate 3 3 Video Source Configure Video Menu HD Video Source HD Input 3 3 Frame Rate Configure Video Menu SD Video Source Frame Rate 3 3 Format Configure Video Menu HD Video Source HD Input Format 3 3 H ...

Страница 64: ...xt normally a pid bitrate service name etc Drop down combo box allows the selection of one of a number of alternatives from a constrained list of values To leave a selection page without operation do not click Apply Click to go to the previous directory or select another tab from the navigation bar 5 4 3 Input Monitor Located at the bottom left hand corner of each webpage is a video monitor This d...

Страница 65: ...asable hardware option It is described in Chapter 3 Options and Upgrades 5 6 System Menu 5 6 1 Overview Path Configure System Menu Figure 5 10 Configure System Webpage Item Value Description Refer to Encapslation Text Set to H 264 AVC Video Audio over TS Section 5 6 3 Service Info Table Displays the Service Info Menu Sections 5 6 4 5 Multiple Services Folder Displays the Multiple Services Menu Sec...

Страница 66: ...e Local Date UTC Offset Temperature Screen Saver Keypress Beep Power Dip Recovery Upgrade Encoder Software Release Fan Control Build Menu Build Version Model Number PCB Serial Number Box Serial Number Board Ref PCB Issue etc Remote Control Menu IP Address MAC Address Network Mask Gateway Address SNTP Server Set Community Name SNMP Master Last SNMP Master Last SNMP Poll SNMP Trap IP 1 Trap Level Re...

Страница 67: ...bserved Disable daylight saving mode DST Start Date DST End Date These tell the Encoder the start and end dates for daylight saving This information is used in conjunction with the Encoder s current date to calculate to the next change in daylight saving This time is put in the System Time Table STT Changes can be made in the Time and Date Menu Long Channel Name This is associated with the field e...

Страница 68: ...lected from the System Menu This menu provides options for configuring the Service Information SI parameters transmitted in the output transport stream It controls the DVB ATSC and SI PSI PSIP configuration See Figure 5 11 for the menu structure when the Syntax option has been set to DVB For information regarding DVB Service Information refer to ETSI EN 300 468 Digital Video Broadcasting DVB Speci...

Страница 69: ...s option allows the service name to be changed The information is included in the SDT Service Provider This option allows the service provider name to be changed The information is included in the Service Description Table SDT Digital TV Digital Radio Teletext Data Broadcast AVC Digital Radio DVB MHP MPEG 2 HDTV AVC SD TV Service Type The service type identifies the type of service carried AVC HD ...

Страница 70: ...io if only two services any audio from additional input modules Service 2 MPEG 2 Video Standard Audio Extra Services Audio from additional input modules if fitted If any PID uses Type 3 PCRs then all services must use Type 3 PCRs PID Allocation Determines how the PIDs are allocated to the services User Defined PIDs can be freely allocated across services Name As entered via the System Information ...

Страница 71: ...dress of SNMP Master that was last connected to the Encoder This is for information only and cannot be changed Last SNMP Poll The Last SNMP Poll option This is for information only and cannot be changed MAC Address Displays the controller MAC Address It cannot be changed and is set in the factory Network Mask Allows the Network Mask for the controller IP address to be changed Set Community Name Th...

Страница 72: ...Selected Item Options Description Config Name Allows a name to be assigned to the current Encoder configuration It is this name that is used if the configuration is stored Auto Temp control The fans are activated automatically when a defined temperature is reached Fan Control Refer to Annex B Technical Specification for more information about the temperatures at which fans activate and deactivate ...

Страница 73: ...for five minutes the chosen screen saver appears on the front panel display Software Release Shows the version number of the control software The software release is for information only and cannot be changed Temperature The Temperature display indicates the current internal temperature Upgrade Encoder Range 0 to 65535 There are a number of features that are not enabled by default Refer to Chapter...

Страница 74: ...om the above parameters Range 0 60 seconds Used by the STT Table in ATSC GPS UTC Offset The Offset is the difference between GPS and UTC time This required because GPS is not adjusted by leap seconds as is UTC time As of 1st January 2006 GPS time is ahead of UTC time by 14 seconds Daylight Saving Time ATSC Only Allows the operator to enter the dates for daylight saving Conventionally DST starts on...

Страница 75: ... an acute angle this should enable the text to be seen enough to change the contrast Display Errors This option either enables or disables the display of error or alarm messages on the front panel No Services Displays the number of services in the output Transport Stream 1 8 Yes The Encoder reboots following a download keeping the current configuration Reset On Download Option No The Encoder keeps...

Страница 76: ...PI Option Descriptions Menu Item Options Description DPI Program Ins DPI Off DVS525 Rev 3 Draft 2002 SMPTE 312M DVS525 COMPEL SCTE 104 2004 Master IP Address TCP Port 100 65535 Port number on which to receive DVS 525 messages Return to Network Auto Return Ext Control If set to Auto no return messages are sent out and Auto Return flag in the message is set to 1 Avail Descriptor Present Off Provider...

Страница 77: ...System Menu The Build Menu shows the version numbers of different modules within the system They cannot be changed and are used by qualified Technicians to determine the functionality of the Encoder Path Configure System Menu Build Figure 5 16 Build Menu The important value is that of the Build Version and it will be this value that is requested from the qualified Technicians ...

Страница 78: ...ked Noise Reduction1 In picture VBI Suppression Audio 1 Audio 2 Time Code 1 Only shown if EN8000 SWO NR option enabled 2 Only shown if EN8000 SWO PIP option enabled Audio 3 Audio 4 Time Code Source Time Code on Error Resolution MCTF CPB Size VBI Menu Teletext Teletext Data Out Teletext PID Teletext Tag Teletext PTS Teletext Initial Page Initial Page Language VBI Line 6 VB1 Line 23 VBI Line 318 2nd...

Страница 79: ...ial digital video input on HD SDI IN connector Color Bars Frames of color bars are passed into the video encoding module independent of the input Input Enables the Video Input to be set Black Frames of black only are passed into the video encoding module independent of the input In picture VBI Suppression Enables blanking of 16 VBI lines to remove VBI from upconverted active video Off No action is...

Страница 80: ... estimation stage to be ignored and one of the fixed levels to be used independent of the noise level called Manual Freeze Frame The last video frame received is encoded if the video input is lost Black A black screen is encoded if the video input is lost OP Video Loss Gives the choice of what is displayed on the television screen in the event of losing video input Bars Bars test pattern is encode...

Страница 81: ... reduction off Adaptive 1 Use noise reduction if necessary but don t introduce artifacts Adaptive 2 Medium adaptive noise reduction best compromise between Adaptive 1 and 3 Adaptive 3 Very powerful adaptive noise reduction may introduce some filter artifacts but will remove as much noise as is possible Adaptive 4 For turn around systems where the input video signal includes coding artifacts Fixed ...

Страница 82: ...reen messages generated by the Encoder e g by the Ident test pattern Pink Time Code This is for status only and cannot be changed Set 00 00 00 The outgoing time code is fixed at 00 00 00 0 Free Wheel Drop Frame The outgoing time code freewheels from the previous known value and repeats some codes for 29 97 Hz operation Time Code on Error Free Wheel The outgoing time code freewheels from the previo...

Страница 83: ...the selection of H 264 AVC video encoding parameters They are listed alphabetically to help with retrieving the information Path Configure Video Menu H 264 AVC Encoder Table 5 11 H 264 AVC Encoder Option Descriptions Selected Item Options Description Adaptive GOP This option is not valid in HD progressive modes The GOP structure is adapted in regard to the number of B and P frames according to the...

Страница 84: ...e order of the frames in the stream I Frame Intvl Displays the maximum time in seconds between two consecutive I frames in seconds This is calculated from the video frame rate and the GOP length specified above MCTF Enables Motion Compensated Temporal Filtering SD Only Standard The default mode should be used unless channel change is an issue Low Delay Standard mode but with a smaller video decode...

Страница 85: ...0 means that the encoder attempts to reach maximum quality while not exceeding the bitrate Reducing the target quality means that a different compromise between bitrate and quality is chosen NOTE This option only appears if VBR Mode is ON and the licence EN8000 SWO REFLEX is enabled Off Constant Bitrate The bitrate shall be constant over time On No stuffing The bitrate can drop below the specified...

Страница 86: ...dth The Bandwidth Option controls the low pass filtering of the video before it is compressed Reducing the bandwidth produces slightly less bits in the compressed bitstream for the same set of encoding parameters Refer to ST AN BW E10074 for more information Bitrate Defines the maximum bitrate generated by the video encoding module This can be set to be between 0 1 Mbit s and a maximum of 1 0 Mbit...

Страница 87: ... DVB compliant PIDs below 32 are reserved In the event of a clash one of the PIDs will be changed by the Encoder s internal checking algorithm Pre Proc Version Shows the version of the code in the pre processing software This is for status only and cannot be changed Profile Defines the profile to be used for the encoding Main Level 3 SD HD 96 X 96 96 X 96 128 X 96 128 X 96 192 X 144 192 X 144 192 ...

Страница 88: ...en bitrate and quality is chosen Target Quality Defines the maximum quality of the encoding as a percentage between 30 and 100 NOTE This option only appears if VBR Mode is ON and the licence EN8000 SWO REFLEX is enabled Off Constant Bitrate The bitrate shall be constant over time On No stuffing The bitrate can drop below the specified level VBR Mode Defines whether the H 264 AVC component will be ...

Страница 89: ...cifies the source of Closed Captions On HD SDI SMPTE 334M English French German Dutch Spanish Portuguese Italian Danish Norwegian Swedish Finnish Undefined Initial Page Language User 1 Off Teletext On 7 22 320 335 Teletext Data Out This is for status only and cannot be changed Teletext Initial Page Only displayed if Teletext On 7 22 320 335 100 899 Teletext Pages comprise of the Magazine Number an...

Страница 90: ...k to Off Closed Caption Closed Caption data is extracted from the line Monochrome 4 2 2 Video Programming System The setting cannot be selected on this screen but is set by setting the VPS Line 16 option to On It indicates that VPS data is extracted from the line Setting Line 16 back to Off VITC or Teletext System B resets the VPS Line 16 option back to Off Teletext System B World System Teletext ...

Страница 91: ...are in the order shown in the table Audio A and B have the same menu options depending upon the Coding Standard selected Audio A Menus are shown as examples This menu permits the selection of individual channel audio parameters Path Configure Audio Figure 5 18 Configure Audio Menu Webpage 5 8 2 Audio Control Menu The audio control menu options are included as a separate menu because they operate a...

Страница 92: ...selected as the input source Embedded DID Defines the DID number for embedded audio pair in the HD SDI It is recommended that the operator leaves the value at the Auto unless there is a good reason to change it 5 8 3 Advanced Audio Introduction The Advanced Audio options define the parameters associated with the encoding of one of the audio components These components can be encoded using one of t...

Страница 93: ...sing the Dolby Digital algorithm MPEG 2 AAC This algorithm implements the low complexity profile of ISO IEC 13818 7 using ADTS Audio Data on Transport Stream encapsulation of the audio data More details are supplied in Annex E NOTE If MPEG 2 AAC is not licenced the only available option for Input Format is Dolby Digital and the only available option for Coding Standard is Passthru Coding Standard ...

Страница 94: ...o Lip Sync Defines whether the encoder ensures that the audio component is synchronized to the video component On The audio component is delayed according to the associated video delay Lip Sync Offset Allows the operator to define a small change in the audio delay relative to the video component The available range is from 125 ms to 125 ms This gives the operator the ability to correct for errors ...

Страница 95: ...rsion of the complete code block used on this module This version is independent of the selected coding standard and is the version to be used for reporting S W Release Specifies the version of software code used H W Release Specifies the hardware version of the Audio Option Module F W Release Specifies the version of firmware used CPLD Release Specifies CPLD version on the module Boot S W Specifi...

Страница 96: ...ge Left 2 Language Right 2 Deempahasis Copyright Original Embedded Source Embedded 1 2 DID Embedded 3 4 DID Audio PID Component Tag PCR on Audio PID OP Digital Loss Hardware Release Software Release Source Coding Standard Audio Bitrate 3 Coding Mode 3 Auto Lip Sync 9 Lip Sync Offset 4 Audio Delay 5 Language Bit Stream Mode 3 Embedded Source Embedded 1 2 DID Embedded 3 4 DID Audio PID Component Tag...

Страница 97: ... PID 3 3 3 Auto Lip Sync 3 3 Auto Lip Sync is Status only when Use Minimum Delay On It is always On when the Audio Alignment option is set Bitstream Mode 3 3 Clip Level 3 3 Only shown if Source Input Format Analogue Coding Mode 3 3 3 For Dolby Digital Pass Thru only Status only Only shown if the Encoder has a viable source from a Dolby Encoder Coding Standard 3 3 3 Component Tag 3 3 3 Copyright 3 ...

Страница 98: ... Sync is forced On the delay can be nudged using the Lip Sync Adjustment option This is to support the SMPTE 302M 2002 specification for carriage of AES3 data in an MPEG transport stream It provides one audio PES packet per video frame such that the PES packet is aligned to that video frame and stamped with the same PTS NOTE Choose the Audio Alignment option to enable the SMPTE 302M 2002 standard ...

Страница 99: ...ailable depend on the hardware issue of the Encoder Mono Left Single channel mono audio encoding the left channel Mono Right Single channel mono audio encoding the right channel Dual Mono Dual channel mono audio Both mono channels are transmitted in the same PID Stereo Dual channel stereo audio Joint Stereo Dual channel joint intensity stereo audio MPEG Layer 2 Audio Description Only available if ...

Страница 100: ...Not Dolby Surround The bitstream is not conveying a Dolby Surround encoded program Dolby Surround The bitstream is conveying a Dolby Surround encoded program Dolby Srnd Mode This option determines whether the bitstream is signaled as conveying a Dolby Surround encoded program or not This option is only available if the coding mode is 2 0 L R This information is not used by the Dolby Digital Decode...

Страница 101: ...e loudness or at a known difference from the original Refer to ATSC Doc A52 for further details Silence Valid PES stream containing silence No PID No Audio PES stream though stream is still referenced in SI OP Digital Loss This option controls behavior digital audio is not locked No ASI O P The ASI output of the Encoder is turned off Original This controls the setting of the Original flag in the b...

Страница 102: ...urce This option defines what audio source is used the encoding operation associated with this menu HD SDI Embedded 4 Audio source is de embedded audio from the HD SDI video input DID 0x1FD VPS Cntrls Coding Mode Allows the extraction of the Audio Coding Mode from Video Programming System VPS The VBI line must be set in the Video VBI menu for extraction of VPS Not detected Not able to extract any ...

Страница 103: ... 5 18 Audio Bitrate Options Available Settings MPEG Layer 2 Coding Dolby Digital Mono Dual Mono Stereo Joint Stereo 1 0 C 2 0 L R 32 kbit s 48 kbit s 56 kbit s 64 kbit s 80 kbit s 96 kbit s 112 kbit s 128 kbit s 160 kbit s 192 kbit s 224 kbit s 256 kbit s 320 kbit s 384 kbit s 448 kbit s 512 kbit s 576 kbit s 640 kbit s ...

Страница 104: ...n or Off On Wegener If On Wegener is selected the stream is identified in the PMT as a component of type 0xC1 with no descriptors Wegener ASYNC data are transmitted as private stream 2 type data This stream conforms to ISO13818 The adaptation field is used to add stuffing bytes if needed to complete a TS packet Stuffing bytes are set to a value of 0xFF Payload data bytes follow the packet length f...

Страница 105: ...32 are reserved In the event of a clash one of the PIDs will be changed by the Encoder s internal checking algorithm Send immediately Whenever data is available at the RS 232 port it is sent in the output transport stream NOTES 1 This option is only available in TANDBERG mode 2 This can result in wasted bandwidth due to low packet occupancy Also results in a higher packet rate which may cause some...

Страница 106: ... algorithm Component Tag Assigns the optional component tag to this data stream Test Mode Option Turns the test mode On and Off Delay The Delay option cannot be changed D Mode The D Mode entry cannot be changed Min 1 Oid index Max 7 SNMP oid index All option modules have the same SNMP oid object identifier with the exception of one byte which identifies which slot the module is in An MEM expects t...

Страница 107: ...to the Multiplexer Off Multiplexer output is switched off Min 0 0000 Mbit s Max 65 0000 Mbit s Step Size 0 0001 Mbit s Multiplexer output bitrate when in baseband output format and ASI output mode The maximum bitrate is 65 Mbit s irrespective of packet size To obtain 69 Mbit s modulated output rate set the packet size to 188 and bitrate to 65 Mbit s The modulator automatically adds 16 Reed Solomon...

Страница 108: ...option enables the Clock to be set NOTE This option indicates the origin of the clock It must be set to a video or external source before attempting to change the clock value or it will default to Local Oscillator HSync Termination Selectable between 75 Ω and high impedance When powered off the HSYNC input is high impedance Min 1 Max 8190 1FFEh PCR PID This option shows the Program Clock Reference...

Страница 109: ...Part 10 H 264 AVC Encoders Page 5 55 ST RE E10233 1 5 11 Output Selection 5 11 1 Overview Figure 5 24 shows the Output Selection options for the EN80x0 Encoder Path Configure Output Figure 5 24 Output Selection Items 5 11 2 Multiple Services See Section 5 6 6 for details ...

Страница 110: ...splays the Software and FPGA versions of the modules which make up the HD Intelligent Compression Engine Figure 5 25 Typical ICE 3 Display NOTE Some version numbers are not reported shown as v0 0 on the display 5 11 4 Mux Menu The options associated with this menu are described in Section 5 10 Figure 5 26 Configure Output Selection Mux Webpage ...

Страница 111: ...scriptor Menu Descriptor Type Terrestrial Table 5 23 shows the options for the Terrestrial Descriptor Type Table 5 23 Options for Terrestrial Descriptor Type Selected Item Options Description Min 0 0000 MHz Max 999 9999 MHz Step Size 0 0001 MHz Carrier frequency of transmitter Frequency This option enables the carrier frequency of the transmitter to be specified NOTES 1 This option is not displaye...

Страница 112: ... 999 999999 MHz Step Size 0 0001 MHz Carrier frequency of transmitter Frequency This option enables the carrier frequency of the transmitter to be specified NOTES 1 This option is not displayed if the unit is set to generate PSIP externally or it is under MEM nCC control 2 This option is status only unless Manual has been selected in the Band Plan option Analog SCTE mode 1 SCTE mode 2 Modulation T...

Страница 113: ... FLASH Sixteen 525 factory default configurations Sixteen 625 factory default configurations Figure 5 27 Configuration Graphical Explanation Active Configuration This is the configuration that the Encoder is currently using Factory Default Configurations There are 16 default configurations for both 525 and 625 line standards They are provided as examples and can be used as they are if their settin...

Страница 114: ...et for the Encoder Figure 5 28 Typical Stored Configurations Tabbed Page 5 12 3 Save Config to Flash Memory Option This option saves the parameters from the operational set for the Encoder into one of the configuration files 5 13 Load Save The instructions shown on the screen should be followed to perform the required operation NOTE The facility to save load XML configurations is currently intende...

Страница 115: ...id and speed the diagnostic process The following textual information is important and should be sent as part of the fault report Version Info Event Log NV Event Log To save the information in a readable form when the text is displayed in the web browser Select the Edit menu on Explorer Click Select All and then Copy Open Notepad and paste this in Save the Notepad file Also the XML configuration f...

Страница 116: ...Web Browser Interface Output Selection Menu Page 5 62 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 117: ...ntroduction 6 3 6 2 Setting up PiP on the EN8000 Encoder 6 3 6 2 1 Allocate Streams to a Service 6 3 6 2 2 Enable the Video Elementary Streams 6 3 6 2 3 Output Services through the Dual IP Ethernet Option Card 6 4 Overview 6 4 IP Output 6 4 List of Tables Table 6 1 Number of Services 6 3 Table 6 2 Resolutions and Bitrates 6 4 ...

Страница 118: ...Picture in Picture Page 6 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 119: ...vice 1 Go to either the System Multiple Services or the Video Multiple Services menu 2 Select the appropriate number of services Table 6 1 Number of Services Number of Services Output Comments 1 Main Only Single service standard operation for the Encoder 2 Main PiP 3 If the incoming configuration is incorrect select User Defined for PID allocation and edit each service independently from this menu...

Страница 120: ...e menu names are not fully constructed until each module has fully booted Default names may be shown for a short while following boot up 6 2 3 Output Services through the Dual IP Ethernet Option Card Overview The Encoder ASI outputs present the services as a single multi program transport stream MPTS Additionally the services can be split into three services and transmitted over an IP network usin...

Страница 121: ...d Page 7 7 7 5 2 Device Information Tabbed Page 7 7 7 5 3 Alarms Page 7 8 7 6 Fault finding 7 9 7 6 1 Fault finding Philosophy 7 9 7 6 2 Preliminary Checks 7 9 7 6 3 A C User Accessible Fuse Replacement 7 10 7 6 4 D C User Accessible Fuse Replacement 7 10 7 6 5 Video Fault finding 7 11 Fault Symptoms 7 11 Breaks in Transmission 7 11 Noise Reduction 7 11 7 6 6 Audio Fault finding 7 11 7 6 7 Mux Fau...

Страница 122: ...Preventive Maintenance and Fault finding Page 7 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 123: ... a damp cloth Do not use liquid cleaners or aerosol cleaners NOTE Only the exterior of the case should be cleaned 7 2 3 Servicing Damage Requiring Service WARNING DO NOT ATTEMPT TO SERVICE THIS PRODUCT AS OPENING OR REMOVING COVERS MAY EXPOSE DANGEROUS VOLTAGES OR OTHER HAZARDS REFER ALL SERVICING TO SERVICE PERSONNEL WHO HAVE BEEN AUTHORISED BY TANDBERG TELEVISION Unplug the equipment from the wa...

Страница 124: ... TANDBERG Television covers the world There is a customer service centre open round the clock every day of the year in your time zone TANDBERG s years of design and support experience enable it to offer a range of service options that will meet your needs at a price that makes sense It s called the TANDBERG Advantage 7 3 2 Warranty All TANDBERG Products and Systems are designed and built to the hi...

Страница 125: ...tates for the error message Alm Fail or Off Alm Alarm shows the error message and triggers the alarm relay Fail shows the error message and triggers both the alarm and fail relays Off does not show the error message and does not trigger any relays Press the navigation arrow key next to a message The status of the message changes as the front panel key is pressed Restore Defaults This option sets a...

Страница 126: ... Fail Relay softkey to access the option and then press any key to toggle the fail relay on and off The relay can usually be heard clicking as it changes state The relay is connected to the rear panel ALARM connector see Chapter 2 Installing the Equipment for the connector pin out details Alarm Relay Test Press the Alarm Relay softkey to access the option and then press any key to toggle the alarm...

Страница 127: ...e on the Support tabbed page available through the Web Browser Use this page to interrogate the Event Logs and to check the Hardware and Software configuration of the Encoder Figure 7 2 Support Tabbed Page 7 5 2 Device Information Tabbed Page Addresses and times are set through the Device Information Tabbed Page Use this page to access the current Alarms and Errors Figure 7 3 Device Information Ta...

Страница 128: ...ems can be masked or level assigned from this page The same function is available through the front panel controls and display see Section 7 4 2 Table 7 1 Alarm Fail Masking Level Displayed Description on Webpage on Front Panel Minor Alm Alarm The equipment has not failed and the service has not been interrupted but requires attention Critical Fail The equipment has failed and the service has been...

Страница 129: ...g the information given in the preliminary pages of this manual 7 6 2 Preliminary Checks Always investigate the failure symptoms fully prior to taking remedial action Fault diagnosis for the equipment operator is limited to the following tasks since the operator should NOT remove the covers of the equipment 1 Check the front panel Power LED If this is not lit a Replace the fuse in the power connec...

Страница 130: ...laded screwdriver in the notch at the top of the carrier CAUTION When replacing the power input fuse always ensure that a fuse of the correct type and rating is fitted Failure to do so results in inadequate protection 3 Replace the fuse in the carrier 4 Insert the fuse carrier back in the a c power inlet Figure 7 5 Position of A C Fuse Carrier If the replacement fuse also blows do not continue Dis...

Страница 131: ... break in transmission occurs then check the encoding mode option of the Encoder see Chapter 5 Web Browser Interface The state of the video input to the Encoder can be defined in the Menus when there is no input Noise Reduction Where incoming picture material is corrupted by high frequency noise such as white noise it is advisable to make use of the noise reduction process Noise reduction can be s...

Страница 132: ...the Encoder or power cable Proceed to next step The problem lies with the power source Check building circuit breakers fuse boxes etc If problem persists contact the electricity supplier 3 Check Power Cable and Fuse Unplug the power connector from the Encoder and try it in another piece of equipment Does it work The problem lies within the Encoder Proceed to next step The problem lies with either ...

Страница 133: ...ional cooling may be required Possible break in the dc supply from the PSU module to the suspect fan s Call a Service Engineer 7 8 Disposing of This Equipment 7 8 1 General Dispose of this equipment safely at the end of its life Local codes and or environmental restrictions may affect its disposal Regulations policies and or environmental restrictions differ throughout the world Contact your local...

Страница 134: ...Preventive Maintenance and Fault finding Page 7 14 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 135: ...l A subset of the MPEG 2 standard which supports digital video storage DVD etc and transmissions up to 50 Mbit s over various mediums Used for Contribution and Distribution applications 5B6B 5 Binary Bits Encoded to 6 Binary Bits Block code AAC Advanced Audio Compression algorithm that has been ratified for both MPEG 2 ISO IEC 11818 7 andMPEG 4 ISO IEC 14496 3 AACplus This is the trademark name fo...

Страница 136: ...onisation when the user data stream contains an insufficient number of 1s to do so B3ZS is the North American equivalent of the European HDB3 Backward Compatibility Refers to hardware or software that is compatible with earlier versions BAT Bouquet Association Table Part of the service information data The BAT provides information about bouquets It gives the name of the bouquet and a list of assoc...

Страница 137: ...ot susceptible to fading CBR Constant Bit rate where the bit rate of the bit stream out of the encoder remains constant over an extended period of time within the buffer limits of the decoder CCIR See ITU R CCITT See ITU T Channel A narrow range of frequencies part of a frequency band for the transmission of radio and television signals without interference from other channels In the case of OFDM ...

Страница 138: ...ssion path network format DCT Discrete Cosine Transform A technique for expressing a waveform as a weighted sum of cosines Raw video data is not readily compressible DCT is not in itself a compression technique but is used to process the video data so that it is compressible by an encoder DCT processes the picture on an 8x8 pixel block basis converting the data from an uncompressible X Y form as d...

Страница 139: ...or cable and EN 300 744 for terrestrial DVB SI Digital Video Broadcasting Service Information DVB PI DVB Physical Interfaces Earth Technical Earth Ensures that all equipment chassis within a rack are at the same potential usually by connecting a wire between the Technical earth terminal and a suitable point on the rack This is sometimes known as a Functional earth Protective Earth Used for electri...

Страница 140: ...ol A protocol used to transfer files over a TCP IP network Internet UNIX etc For example after developing the HTML pages for a Web site on a local machine they are typically uploaded to the Web server using FTP Unlike e mail programs in which graphics and program files have to be attached FTP is designed to handle binary files directly and does not add the overhead of encoding and decoding the dat...

Страница 141: ...picture frame which is coded using purely intracoding with reference to no other field or frame information The I frame is used as a reference for other compression methods IPPV Impulse Pay Per View One time events purchased at home on impulse using a prearranged SMS credit line IRD Integrated Receiver Decoder The Receiver with an internal MPEG Decoder which is connected to the subscriber s TV The...

Страница 142: ...nverts it to a suitable frequency to input to the IRD typically 950 MHz 1600 MHz LO Local Oscillator LOAS Low overhead Audio Stream is part of the method to encapsulate MPEG 4 HE AAC into transport stream It is used in conjunction with LATM LSB Least significant bit Luminance The television signal representing brightness or the amount of light at any point in a picture The Y in YCRCB LVDS Low Volt...

Страница 143: ...2 of this standard defines the original MPEG 4 video compression whereas Part 10 is the new algorithm also known as H 264 MPEG 4 PT 10 Advanced Video Coding AVC standard designed to provide increased coding efficiency over MPEG 2 Specified in ISO IEC 14496 10 and as ITU T Recommendation H 264 The standard is split into profiles which define which tools can be used and levels which define the allow...

Страница 144: ... colour TV broadcasting system where the phase of the R Y colour difference signal is inverted on every alternate line to average out errors providing consistent colour reproduction PAT Program Association Table Part of the MPEG 2 Program Specific Information PSI data and is mandatory for MPEG 2 compliance The PAT points maps to the PMT PCM Pulse Code Modulation A process in which a signal is samp...

Страница 145: ... going subscription Subscribers must purchase viewing rights for each PPV event that they wish to view PPV events may be purchased as IPPV or OPPV Program PC A sequence of instructions for a computer TV A concept having a precise definition within ISO 13818 1 MPEG 2 For a transport stream the timebase is defined by the PCR The use of the PCR for timing information creates a virtual channel within ...

Страница 146: ...epeat character x y times SCPC Single Channel Per Carrier Spectral Scrambling A process in digital transmission used to combine a digital signal with a pseudo random sequence producing a randomised digital signal that conveys the original information in a form optimised for a broadcast channel Scrambling Alteration of the characteristics of a television signal in order to prevent unauthorised rece...

Страница 147: ...SMS can be an automatic e g Syntellect system where subscribers order entitlements by entering information via a telephone Alternatively an SMS can be a manual system which requires subscribers to speak with an operator who then manually enters their entitlement requests Some systems support multiple SMSs SNG Satellite News Gathering SNMP Simple Network Management Protocol Spatial Redundancy Infor...

Страница 148: ... computer in an orderly manner This is particularly important where write back cache is used Write back cache is where modified data intended for the disk is temporarily stored in RAM and can be lost in the event of a power failure Sophisticated systems are tied to electrical generators that can provide power for days UPS systems typically provide surge suppression and may provide voltage regulati...

Страница 149: ... MPEG 4 Part 10 H 264 AVC Encoders Page A 15 ST RE E10233 1 XILINX A type of programmable Integrated Circuit Y Luminance Defines the brightness of a particular point on a TV line The only signal required for black and white pictures ...

Страница 150: ...Glossary Page A 16 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 151: ...rol and Monitoring B 13 B 3 1 Remote Control Ethernet 1 and 2 B 13 B 3 2 Local Control B 13 B 3 3 Alarm B 13 B 4 Power Supply B 14 B 4 1 A C Mains Input B 14 B 4 2 D C Supply Input 48 Vdc Version B 15 B 5 Physical Details B 15 B 6 Environmental Conditions B 16 B 7 Compliance B 16 B 7 1 Safety B 16 B 7 2 EMC B 17 B 7 3 CE Marking B 17 B 7 4 C Tick Mark B 17 B 7 5 Packaging Statement B 18 B 7 6 Pack...

Страница 152: ...B 17 Dolby Digital Audio Encoding Bitrates B 11 Table B 18 RS 232 Asynchronous Data Input Specification B 11 Table B 19 RS 422 Data Specification B 12 Table B 20 Aux RS232 Data Out B 12 Table B 21 Test Tones Specification B 12 Table B 22 ASI Out Specification B 13 Table B 23 Ethernet Specification B 13 Table B 24 Alarm Specification B 13 Table B 25 A C Power Supply Specification B 14 Table B 26 D ...

Страница 153: ... powered down impedance 75 Ω SDI Table B 2 Serial Digital Video Specification Item Specification Safety status SELV Connector designation SDI IN Connector type 75 Ω BNC female socket Input standard UK EC Input standard USA ITU R RECMN BT 656 3 Interfaces for Digital Component Video Signals in 525 Line and 625 Line Television Systems Operating at the 4 2 2 Level of Recommendation ITU R BT 601 Part ...

Страница 154: ...LV Analogue input 625 line composite PAL B D G H I 525 line composite NTSC M PAL M as specified in ITU R report 624 4 Characteristics of Television Systems NTSC with and without set up of 7 5 IRE Connector designation COMP VIDEO Connector type 75 Ω BNC socket Input level 1 V pk pk nominal 5 Return loss Better than 30 dB up to 6 MHz when impedance is set to 75 Ω Input impedance 75 Ω High Z switchab...

Страница 155: ...ns HD Resolution V x H 25 Hz 29 97 Hz 50 Hz 59 97 Hz 1920 x 1080 Interlaced N A 1440 x 1080 Interlaced N A 1280 x 1080 Interlaced N A 960 x 1080 Interlaced N A 1280 x 720 N A Progressive 960 x 720 N A Progressive 640 x 720 N A Progressive Output Video Coding Resolutions for Advanced Coding EN8030 The available coding resolution depends on the scan format that has been selected where the progressiv...

Страница 156: ... of 20 0 Mbit s Buffer size of 3 3 seconds The video encoder includes the following tools Spatial Intra prediction Intra macro blocks are predicted from surrounding previously coded macro blocks Sub pixel motion vectors This allows motion to be more accurately represented CABAC Context Adaptive Binary Arithmetic Coding a more efficient form of entropy coding compared to traditional variable length...

Страница 157: ...ard 2 Supported coding modes Supported coded data rate MPEG 4 HE AAC Stereo only 48 kbit s 128 kbit s Coding standard 3 Supported coding modes Supported coded data rate MPEG 4 HE AAC V2 Stereo only 32 kbit s 128 kbit s Coding standard 4 Supported coding modes Supported coded data rate MPEG 1 Layer 2 ISO IEC 13818 Single Mono Dual Mono Joint Stereo Stereo 32 kbit s 384 kbit s Coding standard 5 Supp...

Страница 158: ...Coding Mode Stereo Bitrate 384 kbit s Set up of Lindos Audio Oscillator Sequence TPBDLKZ Test Tolerance for Left and Right Legs for Channel A and Channel B Test Level T 1 kHz 0 dB 0 2 dB Sweep 20 Hz 20 kHz 20 dB P 20 Hz 63 Hz 0 0 to 0 5 dB 100 Hz 10 kHz 0 2 to 0 3 dB 12 5 Hz 18 kHz 0 2 to 0 5 dB 20 kHz 0 to 1 5 dB Crosstalk 0 dBs B 100 Hz 72 dB 1 kHz 74 dB 6 3 kHz 67 5 dB 10 kHz 63 dB Distortion n...

Страница 159: ...ation Item Specification Serial Digital Interface Safety status SELV Connector designation HD SDI IN Connector type BNC female connector Input standard SMPTE 292M A Embedded Audio Via SDI Audio embedded on the serial digital interface can also be extracted Up to two stereo pairs of audio can be extracted from the SDI Table B 12 Embedded Audio Specification Item Specification Serial Digital Interfa...

Страница 160: ...mono 64 3 3 80 3 3 96 3 3 128 3 3 MPEG 4 HE AAC V2 Encoding Bitrates Table B 15 MPEG 4 HE AAC V2 Audio Encoding Bitrates Bitrate kbit s Stereo 32 3 MPEG 1 Audio Encoding Bitrates Table B 16 MPEG 1 Audio Encoding Bitrates Bitrate kbit s Single Channel Mono Dual Mono Stereo Joint Stereo 32 3 48 3 56 3 64 3 3 3 3 80 3 96 3 3 3 3 112 3 3 3 3 128 3 3 3 3 160 3 3 3 3 192 3 3 3 3 224 3 3 3 256 3 3 3 320 ...

Страница 161: ... 224 3 3 256 3 3 320 3 3 384 3 3 448 3 3 512 3 3 576 3 3 640 3 3 B 1 3 RS 232 Data A 9 way D type female connector provides an RS 232 asynchronous serial communications data input interface Table B 18 RS 232 Asynchronous Data Input Specification Item Specification Safety status SELV Type ITU T V 24 V 28 RS 232D asynchronous serial data Connector designation RS 232 DATA Connector type 9 way D type ...

Страница 162: ...Not supported Operation modes Bit pipe Transport packet alignment and byte alignment relative to the incoming bitstream are arbitrary B 1 5 AUX RS232 CAUTION This is for use by TANDBERG Television engineers for unit diagnostics The Video Coding Module has an RS 232 connection called Aux Rs 232 to allow the flow of diagnostic information This is available via the rear panel using a 9 way male D typ...

Страница 163: ...ion Safety status SELV Connector designation ETHERNET 1 and ETHERNET 2 Connector type 8 way RJ 45 socket 10BaseT ISO 882 3 B 3 2 Local Control Local control is by means of the front panel keypad and LCD display B 3 3 Alarm Table B 24 Alarm Specification Item Specification Safety status SELV Connector designation ALARM Connector type 9 way D type male Alarm contacts Change over contacts 5 Ω in comm...

Страница 164: ...Equipment that is intended for connection to the building power supply wiring via a non industrial plug and socket outlet or a non industrial appliance Coupler or both Correct mains polarity must always be observed Do not use reversible plugs with this equipment Class of equipment Class I Equipment EN 60950 para 1 2 4 electric shock protection by basic insulation and protective earth Rated voltage...

Страница 165: ...o 60 Vdc Correct polarity must always be observed Rated current 5 A Input connector Terminal block Fuse Fuse in 48 Vdc connector at rear of unit Fuse type Bussmann S505 Littelfuse 215 5x20mm time delay T 1500A breaking capacity HBC IEC EN 60127 2 Sheet 5 Fuse current rating 6 3 A 250 V T HBC Power consumption 100 W maximum with no options fitted B 5 Physical Details Table B 27 Physical Details Ite...

Страница 166: ...ensing Cooling requirements Cool air input from left side of unit exhaust from right side of unit See Chapter 2 Installing the Equipment Figure 2 2 Handling movement Designed for stationary or fixed use when in operation Storage Transportation Temperature 0 C to 70 C 32 F to 158 F Relative humidity 0 to 90 non condensing B 7 Compliance1 B 7 1 Safety This equipment has been designed and tested to m...

Страница 167: ...tle 47 Telecommunications Part 15 Radio frequency devices subpart B Unintentional Radiators B 7 3 CE Marking The CE mark is affixed to indicate compliance with the following directives 89 336 EEC of 3 May 1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility 73 23 EEC of 19 February 1973 on the harmonisation of the laws of the Member States relating t...

Страница 168: ... foam inserts can be easily recycled with other low density polyethylene LDPE materials B 7 6 Packaging Markings The symbols printed on the outer carton are described below Handle with care See Section B 7 3 See Section B 7 4 This way up Fragile Protect from moisture Defines country of origin The packaging is reusable per GB 18455 2001 Recyclable per GB 18455 2001 This symbol guarantees that packa...

Страница 169: ...ment to be in an equipment room at controlled temperatures around 22 C with moderate humidity around 60 and clean air near sea level not subject to vibration or shock Where TANDBERG Television product contains potentially hazardous materials this is indicated on the product by the appropriate symbol containing the EFUP For TANDBERG Television products the hazardous material content is limited to l...

Страница 170: ...duct may contain lead in solder Some circuit boards may contain battery backed memory devices B 8 Cable Types The signal cable types or similar in Table B 29 are those recommended by TANDBERG Television in order to maintain product EMC compliance Table B 29 Suitable Signal Cable Types Signal Type Connector Cable Ethernet RJ 45 Belden Datatwist S FTP ASI Outputs BNC Canford Audio BBC 1 3 PSF type 2...

Страница 171: ... eng Finnish fin French fre German ger Italian ita Norwegian nor Portugese por Spanish spa Undefined User 1 There is the facility to enter a User specified abbreviation This is performed by entering a 3 letter code for the User Defined Language 1 entry in the menu Once this has been carried out the code appears against the User Defined 1 option and it is this entry that is used for language code i...

Страница 172: ...Language Abbreviations Page C 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 173: ...D 5 4 Downsampling D 8 D 5 5 Saving the osd File D 8 D 6 Downloading a Logo Using OSD Loader D 9 D 7 Using the OSD Loader D 9 D 7 1 Start up D 9 D 7 2 Download an osd File D 10 D 7 3 Show and Hide Regions D 12 D 7 4 Multiple Regions D 12 D 7 5 Region Interference D 12 D 8 Fault finding D 12 List of Tables Table D 1 Resolution Modes D 10 List of Figures Figure D 1 Web Browser Interface D 4 Figure D...

Страница 174: ...Creating and Downloading a Logo Page D 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 175: ...he Encoder two Windows applications are required Osd Creator and Osd Loader Once a logo has been downloaded to Flash it can be enabled disabled from the front panel menu Setup Video Video source Stored OSD Logos downloaded to volatile memory can only be controlled by the OSD Loader application running from a PC Logos are defined at pixel resolution and include a red green blue and transparency com...

Страница 176: ...he dialogue box see Figure D 2 will be displayed Figure D 2 File Download Dialogue Box Clicking on option Open this file from its current location and Clicking OK will open the zip file see Figure D 3 Clicking on option Save this file to disk will allow the user to install the files on their local drive and then open the zip file as in Figure D 3 ...

Страница 177: ...that when the image is superimposed onto video some areas appear to be transparent The application also includes the facility to downsample the image to the desired size The application runs under Windows 95 or Windows NT NOTE The OSD Creator program only has limited features for the manipulation of images It is wise to carry out any complex image editing using dedicated graphics software prior to...

Страница 178: ... colour palette D 5 3 Creating Transparency Overview Each pixel in a bmp file is represented by a red green and blue component each with a value 0 to 255 Osd Creator adds a fourth component for the transparency of the pixel This is referred to as a mix or transparency T value and is displayed in the bottom right status panel The transparency component also has a range of 0 to 255 where 0 is fully ...

Страница 179: ...hese are set so LButtonMix is 0 to make an area transparent and RButtonMix is 255 to make it opaque Different mix levels can be entered for intermediate levels of transparency Selecting a brush size from the drop down list determines the size of the area that is changed If the Changes Affect Palette box is checked changing the transparency of a pixel on the image also changes the palette entry on ...

Страница 180: ... palette entry zero which is defined as Red Green Blue Mix 0 The original colour information is lost and the right mouse button will not change the pixel back to its original colour To rebuild the palette during editing click the Reallocate Palette toolbar button D 5 4 Downsampling Click the Downsample toolbar button A dialog box appears asking for a downsampling ratio This can be specified direct...

Страница 181: ...ating a Logo Using OSD Creator An example of an OSD Loader screen is shown in Figure D 5 Figure D 5 OSD Loader Screen Showing Example Logo D 7 Using the OSD Loader D 7 1 Start up Activate the application osd exe The application attempts to connect to the last known Encoder address If the address is not correct click the Abort button and enter the IP address of the target Encoder This can be found ...

Страница 182: ...Loader uses include an offset Figure D 6 and Figure D 7 illustrate how these co ordinates relate to the active picture When the logo is correctly positioned click the Download button Transferring Data appears in the communications box The image will be displayed in the main window Wait for Transfer Completed OK to appear in the communications box After a short delay the image should appear on the ...

Страница 183: ... 623 310 OSD Loader Co ordinates 858 619 OSD Loader Co ordinates 139 44 OSD Loader Co ordinates 148 44 Figure D 6 625 Line OSD Co ordinates in Active Picture 480 Lines 1 720 720 Pixels Digital Active Picture 702 Pixels Analogue Active Picture Pixel 1 2 Line Field 23 286 287 288 24 25 525 262 OSD Loader Co ordinates 852 517 OSD Loader Co ordinates 133 38 OSD Loader Co ordinates 142 38 Figure D 7 52...

Страница 184: ...ndow Uncheck the Images box to display the Region number in the main window instead of the image D 7 5 Region Interference If two Regions share a horizontal line they may interfere This means that when both Regions are Shown only one actually appears in the video stream The application warns if this is the case When one of the Regions is Hidden the other may be Shown as normal D 8 Fault finding If...

Страница 185: ...o E 6 Input Impedance E 6 Clip Levels E 6 E 3 2 Digital Audio E 7 Digital Audio on AUDIO IN 2 E 7 Digital Audio on AUDIO IN E 7 Serial Digital Interface Embedded Audio E 8 Input Selection E 8 HD SDI Embedded Audio E 9 HD SDI Input Selection E 10 E 4 Summary E 10 List of Figures Figure E 1 CT aacPlus Encoder for DRM E 4 Figure E 2 Analogue Audio Route E 6 Figure E 3 Digital SDI Embedded Audio Route...

Страница 186: ...Audio Modes Page E 2 Reference Guide EN8000 MPEG 4 PArt 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

Страница 187: ...igh audio quality at a rate of 64 kbit s channel for 5 1 systems AAC consists of several tools other than those shown in the basic model Pre processing Signal split into 4 equally sized frequency bands and their level adjusted Filter bank MDCT filter is used Temporal Noise Shaping TNS pre echo removal Intensity stereo coding coupling stereo coding Prediction intensity difference between the previo...

Страница 188: ...to be about 30 better than its base codec This places HE AAC very high on the agenda The low complexity codec is still the one to consider for broadcast purposes as with today s technology this is may be coded real time and achieve the required quality E 1 2 MPEG 4 Formats MPEG 4 audio may be stored and streamed in many formats which are described in the standard These include ADTS This format pla...

Страница 189: ... mode is for multilingual transmission where decoder selects which language to decode on left or right E 2 5 Surround Sound 5 1 A stereo signal produces a very focused audio field so unless the viewer is sitting in the correct position the audio reproduction suffers More audio channels are required to generate a larger audio field in which the viewer can listen The encoder expects the signal to ar...

Страница 190: ...t amounts of current The operator should only select this when using professional equipment 20 kΩ to minimise the amount of current that the audio source needs to generate at the expense of increased noise in the digitisation process The operator should select this when it is not clear that the source can source sufficient current Clip Levels When analogue audio is selected then it is possible to ...

Страница 191: ... This input method is selected as Digital in the Advanced Audio 4A 4D menus The input format for this input is linear PCM or Dolby Digital bitstreams When the digital audio source is used with the AUDIO IN 2 connector consideration must be given to the choice of clock source used by the Encoder To ensure correct operation both the Encoder and the audio source may need to be genlocked to the studio...

Страница 192: ...e SDI feed within 4 groups Each group contains two stereo pairs Hence each SDI can carry a maximum of 2 x 4 8 stereo pairs or 16 mono channels Each group has an associated Data Identifier DID The standard DIDs are typically Group 1 0x2FF Group 2 0x1FD Group 3 0x1FB Group 4 0x2F9 The DIDs are located in ancillary packets in the data stream Other DIDs are possible DID 1F4 is reserved for EDH error p...

Страница 193: ...t DID for embedded audio 1 2 is 2FFh Group 1 The default DID for embedded audio 3 4 is 1FDh Group 2 NOTE Default DIDs are selected when a DID value 1024 is set While there are a possible eight stereo pairs available both the standard and advanced audio encoding modules can process up to two stereo pairs each HD SDI Embedded Audio The Encoder has the capability of de embedding up to 4 groups of aud...

Страница 194: ... embedded audio 1 8 The default DIDs are shown in Table E 4 HD SDI Default DID s Table E 4 HD SDI Default DID s Embedded Audio Default DID 1 2 0x2E7 Group 1 3 4 0x1E6 Group 2 5 6 0x1E5 Group 3 6 8 0x2E4 Group 4 Default DIDs are selected when a DID value 1024 is set E 4 Summary Table E 5 summarises the available coding standards and modes for the audio modules Table E 5 Summary of Audio Coding Mode...

Страница 195: ...re a suitable reference is not available e g outside broadcast or intercontinental programme exchange the specifications allow a relaxed accuracy When this equipment is used to source a timing reference which is used to generate a composite video output for instance the PAL or NTSC output of a TANDBERG Television Receiver Decoder the accuracy of the resultant subcarrier is directly traceable to th...

Страница 196: ...Accuracy of Frequency Sources Page F 2 Reference Guide EN8000 MPEG 4 Part 10 H 264 AVC Encoders ST RE E10233 1 BLANK ...

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