European Digital Cinema Audio Security


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The Enhanced Digital Cinema (EDCine) project is focusing on theoptimisation, enhancement and interoperability issues of JPEG 2000based Digital Cinema standards. JPEG 2000 compression and the“DCI specifications” document [DCISPEC] are... Lire la suite

The Enhanced Digital Cinema (EDCine) project is focusing on the optimisation, enhancement and interoperability issues of JPEG 2000 based Digital Cinema standards. JPEG 2000 compression and the “DCI specifications” document [DCISPEC] are the cornerstones of the project’s efforts.

The “DCI specifications” document published in April 2007 confirms the SMPTE decision to choose JPEG 2000 instead of MPEG for digital cinema coding. This choice clearly does not take account of many European issues. The MXF file format and security tools specifications are being adopted following the DCI studios’ wishes. They lead to an unquestionable increase in the quality of the theatre experience. Nevertheless the specifications’ rigidity, due mainly to the total absence of choice about the compression format, will force theatres willing to be able to project digital content to comply with those requirements within a few years to make great financial efforts.

If this aspect can be considered not to be an issue for large multiplex theatres, which are often directly tied to a major, the same cannot be asserted for the great majority of European cinemas, which consist mainly of a number of small theatres distributed in small or mediumsized towns and for which conforming to DCI specifications could be beyond their own investment capabilities.


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Spécifications


Éditeur
Presses universitaires de Louvain
Auteur
EDCINE Consortium,
Collection
Hors collection (Presses universitaires de Louvain)
Langue
anglais
Catégorie (éditeur)
Sciences économiques et sociales > Communication et média
BISAC Subject Heading
TEC001000 TECHNOLOGY & ENGINEERING / Acoustics & Sound
Code publique Onix
06 Professional and scholarly
CLIL (Version 2013-2019 )
3072 Electronique
Date de première publication du titre
01 janvier 2009
Subject Scheme Identifier Code
Classification thématique Thema: Génie électronique
Type d'ouvrage
Monographie

Livre broché


Details de produit
1 A4
Date de publication
01 janvier 2009
ISBN-13
978-2-87463-160-3
Ampleur
Nombre de pages de contenu principal : 84
Code interne
80479
Format
16 x 24 x 0,5 cm
Poids
152 grammes
Prix
8,00 €
ONIX XML
Version 2.1, Version 3

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Sommaire


Overview ........................................................................... - 6 -
Chapter 1 System Requirements Specification ................... 17
Fundamental system requirements ....................................... 17
Interfacing ............................................................................. 18
Audio .................................................................................... 18
Security ................................................................................. 18
Reliability and Availability .................................................. 18
Interfaces .............................................................................. 18
Chapter 2 Audio Characteristics ......................................... 19
Bit Depth ............................................................................... 19
Sample Rate .......................................................................... 19
Channel Count ...................................................................... 19
Streaming Format ................................................................. 20
Chapter 3 Synchronization .................................................. 21
Audio-Video Synchronization .............................................. 21
Chapter 4 Inter-channels synchronization requirements ..... 23
Maximum inter-channel misalignment ................................. 23
Stream Metadata ................................................................... 23
Chapter 5 Security .............................................................. 25
Fundamental security system requirements .......................... 25
Content protection and piracy prevention............................. 25
Resist threats ......................................................................... 26
Reliability ............................................................................. 26
Renewability ......................................................................... 26
Chapter 6 Proposed System Architecture ........................... 27
Principal system components ............................................... 27
Audio Distribution Server .................................................... 27
Active Loudspeakers ............................................................ 27
Dedicated switched Fast/Gigabit Ethernet............................ 28
Clock Synchronization protocol ........................................... 28
Authentication and streaming protocols ............................... 28
Interoperation scenarios ........................................................ 29
Considerations ...................................................................... 59
Appendix A SRTP overview ............................................... 61
Appendix B SAP overview ................................................. 65
Appendix C SIP overview................................................... 67
Appendix D SDP overview ................................................. 69
Appendix E MIKEY overview ........................................... 71
Table of abbreviations and acronyms ................................. 75
Table of Contents ................................................................ 83

Extrait


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