1	DTV Master Control Design Concepts Using New Technology to Implement DTV Master Control Designs
2	Iowa Public Television 2002 DTV Symposium Craig Beardsley, Technical Manager Sony Broadcast Systems Solutions Company Park Ridge, NJ
3	DTV Master Control Designs Should provide more flexibility than current MCR designs Should leverage new AV/IT Technology integration Should enable future expansion and growth to adapt to new and emerging broadcast content
4	Traditional DTV MCR
5	New Trends in Broadcast TV “Central Casting” One Location feeding a number of TV operations with different signals Less Local program content More Targeted Funding Credits / Commercial announcements
6	New “Traditional” Technologies Improved Cost/Benefit of multi-ported server architectures Lower Cost of HD and high quality SD acquisition Lower Cost of building a completely component digital plant Move to Open Standards by manufacturers
7	New Technologies AV / IT Technologies Asset Management Systems and Structures UMID Metadata management Bridge Products (tying legacy and new technologies) MXF File Transfer (First presented here in 2000) IP Streaming
8	What is MXF ? An Interchangable file format It is a Wrapper for Multi-media containers An extensible file format A compression agnostic file format A versatile file format A metadata aware file format A Streamable file format NOT an authoring format MXF allows editable packages with simple cuts Everything else is AAF
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11	Compression Independence Different MXF body types can be KLV wrapped Body types can be single essence or multiplexed Body type is signalled in the first few bytes Enables early success / failure when streaming Allow rapid identification of body types Metadata can be parsed even if essence type cannot be decoded Store & Forward devices can report compression type
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13	Asynchronous Transfers Conceptual System Block Diagram of "e-VTR" Merge Current VTR Technology and Network Technology
14	MXF - Summary MXF allows File Transfer of Rich Media Files via standard IT networks MXF can provide streaming mode service, on a network than can support it. MXF is compression agnostic Allows for specific content to be parsed (i.e. pull out just the audio) Editor interface with AAF files Gateways such as the e-VTR will provide interconnectivity to existing libraries
15	Designing today’s DTV Master Control System A Building Block Approach
16	Basic Functional Blocks Acquisition Satellite (Analog, IP, MPEG, etc.) Fiber / Coax (ATM, IP, TV-1, etc.) Format normalization For materials needing some modification Storage (both Data and A/V) Local Remote Asset Management
17	Basic Functional Blocks Playout Traffic Scheduling PSIP generation Formatting (SD, HD, NTSC, etc.) Multicasting Strategies Emission DTV, NTSC, Cable, DTH Satellite, Web, etc.
18	Building Blocks
19	Assembling the Blocks With available technology, there are now many ways to assemble the blocks Functions can appear as needed at any stage of the process, and many can be done under automated control Additional functions can be “Patched in” as necessary
20	Reality Check Make sure you are building for your current needs Leave “hooks” for expansion over the next 5 – 7 years Don’t build yourself into a corner – allow for undetermined and/or new operating parameters (Multicast, Central Cast, HD, etc.)
21	Reality Check How many streams do you need to feed/control simultaneously? Be sure to include ITV, Cable, and any other feeds that do not go to the main transmitter What resolutions (formats) do you need to emit (transmit)? – Allow for all necessary conversions How much rights management do you need? How much Automation is required? In what locations are services needed? Remote Funding Credit/Commercial drop-in, edge servers, hub and spoke designs, etc. What kinds of connectivity are available and affordable? Type, Bandwidth, Availability, etc.
22	An Example – Asset Management based storage
23	Example – Remote Commercial / Funding Credit drop-in
24	Example – “CentralCast”
25	Enabling Technologies MXF File Transfer over IP MPEG Transcoding High Quality IP Streaming Defined Asset Management Structures/Software Improved Automation Functionality
26	DTV MCR Designs New DTV MCR designs should leverage traditional and new technologies Should provide new functionality as needed Should be modular and expandable Should leverage AV/IT integration, where it makes sense to do so Optimal design will be different for each case
27	Conclusion Designs must be tailored to specific needs and resources Designs must allow for expansion/adaptation Today’s optimal design will be out of date very soon Designs should consider AV/IT integration technolgy as a source of effeciencies Designs must make sense – in dollars and operational functionality
28	Thank You WWW.AAF.ORG WWW.PRO-MPEG.ORG