User manual TANDBERG TT-1222_2

[. . . ] ST. RE. TT1222. 2 Issue 2 ENGLISH (UK) REFERENCE GUIDE TT1222 4:2:0 Professional Receiver Software Version 2. 0. 0 (and later) TT1222 4:2:0 Professional Receiver Preliminary Pages ENGLISH (UK) READ THIS FIRST! If you do not understand the contents of this manual DO NOT OPERATE THIS EQUIPMENT. Also, translation into any EC official language of this manual can be made available, at your cost. ITALIANO LEGGERE QUESTO AVVISO PER PRIMO! Se non si capisce il contenuto del presente manuale NON UTILIZZARE L?APPARECCHIATURA. anche disponibile la versione italiana di questo manuale, ma il costo a carico dell?utente. SVENSKA LS DETTA FRST!Om Ni inte frstr informationen i denna handbok ARBETA D INTE MED DENNA UTRUSTNING. [. . . ] The TANDBERG Television Encoder normally uses a 12 frame GOP; every twelfth frame is an I frame. Graphical User Interface: The use of pictures rather than just words to represent the input and output of a program. A program with a GUI runs under a windowing system and has a screen interface capable of displaying graphics in the form of icons, drop-down menus and a movable pointer. The on-screen information is usually controlled / manipulated by a mouse or keyboard. High Power Amplifier: Used in the signal path to amplify the modulated and up-converted broadcast signal for feeding to the uplink antenna. A device in a multipoint network at which branch nodes interconnect. Integrated Conditional Access Module: Embedded in the IRD and responsible for descrambling, plus packet filtering and reception. It also contains the physical interface to the subscriber?s viewing card. International Electrotechnical Committee. Intermediate Frequency: Usually refers to the 70 MHz or 140 MHz output of the Modulator in cable, satellite and terrestrial transmission applications. FFT FIFO Footprint FTP G. 703 GOP GUI HDTV HPA HSYNC Hub ICAM IEC IF Page A-4 Reference Guide: TT1222 4:2:0 Professional Receiver ST. RE. TT1222. 2 Glossary Interframe Coding Compression coding involving consecutive frames. When consecutive frames are compared, temporal redundancy is used to remove common elements (information) and arrive at difference information. MPEG-2 uses B and P frames, but since they are individually incomplete and relate to other adjacent frames, they cannot be edited independently. Compression coding involving a single frame. Redundant information is removed on a per frame basis. Coding of a macroblock or picture that uses information only from that macroblock or picture. Exploits spatial redundancy by using DCT to produce I frames; these are independent frames and can be edited. Internet Protocol: The IP part of TCP/IP. IP implements the network layer (layer 3) of the protocol, which contains a network address and is used to route a message to a different network or sub-network. IP accepts packets from the layer 4 transport protocol (TCP or UDP), adds its own header to it and delivers a datagram to the layer 2 data link protocol. It may also break the packet into fragments to support the Maximum Transmission / Transfer Unit (MTU) of the network. Intracoded Picture/Frame: A 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. [. . . ] Audio artefacts due to hardware re-initialisation. Remedy Check input source. Default A A W Frame resync W Same PID Same PID in both additional channels is allowed. Same PID cannot be selected for the base and extended audio at the same time. A FW restart A Page D-4 Reference Guide: TT1222 4:2:0 Professional Receiver ST. RE. TT1222. 2 Alarm Categories and Conditions Alarm Category Contents PTS starvation Cannot obtain LipSync according to PCR/PTS due to compressed bit buffer underflow. Cannot obtain LipSync according to PCR/PTS due to compressed bit buffer overflow. Audio artefacts due to presentation adjustments. [. . . ]