In Broadcast - October/November 2011 - 72


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InTECH
On An Ever More Demanding Path – Routers And Switchers
Advances in the delivery of streaming live and pre-recorded video has enabled clients to access media from a number of distribution methods – anytime and anywhere. This has played a pivotal role in how content must be routed and distributed within TV stations. Routers must include the ability to auto-detect multi-format signals, convert from one signal format to another, upscale and downscale, embed audio to the video stream, de-embed audio from the video stream, transport over fibre or coax, accept 3D signals, and automatically detect any failures and auto-correct the problems. Signal path management is arguably the most valuable function of the switcher is the hub of a station or mobile broadcast outfit. “The increased demand for 3D content, which must be routed and distributed within a production studio, has generated the requirement for more complex routing switcher systems,” says Dan Holland VP, Product Marketing, PESA. Due to this complexity and the requirement to use two parallel channels per source, routing switchers must increase the number of input and output ports to support two signals per one uncompressed 3D channel. A few years ago, a typical routing switcher would support up to 128x128. Now, it is not uncommon to see routing switchers 288x288 and larger. “What we are seeing from our customers is the desire to be prepared for the ‘next big thing,’ whether that is 1080p/3G, 3D, or any other format that they might have to deal with in the near future,” says Scott Murray, Senior VP, Live Production Solutions, Grass Valley. “We are also seeing existing customers coming back to update SD or HD matrix cards for 3G cards (GV’s Trinix frame supports 3G).” When it comes to core infrastructure investments media companies are shifting their focus to 3G/1080p, agrees FOR A (UK) General Manager, Peter Jones. This is especially true for mobile units covering sports – sports are just better when viewed as progressive images.
by Adrian Pennington

Although the routing switcher started life as a simple crosspoint switch, today’s technology has taken a key role in mission critical operations. Selecting the right one is one of the most important decisions for any chief engineer tasked with upgrading or expanding a broadcast or communication facility.

Grass Valley’s Trinix NXT

72

For A HVS-350HS Digital Video

Sony for example has a specific 3D software package, successfully deployed at the World Cup 2010 and the recent 3D Wimbledon tennis productions, available for its new MVS-7000X and 8000X processors. This allows for the switcher to handle either dual link (separate L & R) or 3G (combined 3D on 3G) 3D signal standards. According to Snell’s VP of Global Marketing Norman Rouse sports broadcasters are looking for equipment that will support singlelink inputs and outputs, with no compromise on the number of M/ Es and keyers. “In fact, we’re seeing the emergence of the 5D world in sports broadcasting (with 2D and 3D output coming from a single truck),” says Rouse. “The beauty of our Kahuna 360 switcher is that the platform can allocate functionality as appropriate, and a single unit can output both stereoscopic and traditional signals.” While most manufacturers are offering 3G capability, either as standard or as an upgrade option from their HD routers, in reality there’s very little difference in the cost to manufacture either. “The reason to buy a 3G

router at this point is still to provide insurance against system obsolescence,” suggests Scott Bosen, Director of Marketing, Utah Scientific. “Since most routers are installed with an expected service life of at least ten years, it makes sense to ensure that the investment will not become outdated as the technology environment continues to evolve.” The same holds true for switchers – customers want to know that they can do more in the future, without having to do it now. Grass Valley’s Kayak and Kayenne switchers, for example, are capable of SD, HD, and 3D. “More challenging to system designers is the move toward integrating functions into the router that have previously been handled by external dedicated equipment,” says Bosen. “Two prime examples are multi-view image processors and embedded audio processing. There are definite trade-offs in cost, system complexity and flexibility that must be evaluated when choosing between integrated and dedicated solutions.” As routing systems get larger and display technology gets better, broadcast centres are increasingly adopting multiviewers to support four or more video sources on the same large LCD displays. “As a corollary, demand for simplified integrated computer graphics has also increased,” says
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Table of Contents for the Digital Edition of In Broadcast - October/November 2011

In Broadcast - October/November 2011
Contents
3Ality Digital Acquire Element Technica
RTL Choses Quantel
Studios In Production
MAM Questions Answered
Changing Faces of Post Production
Microphones In Action
New Developments in Audio for Television
Routers and Switchers
Loudness Measuring in Workflows
In Broadcast - October/November 2011 - In Broadcast - October/November 2011
In Broadcast - October/November 2011 - 2
In Broadcast - October/November 2011 - Contents
In Broadcast - October/November 2011 - 3Ality Digital Acquire Element Technica
In Broadcast - October/November 2011 - 5
In Broadcast - October/November 2011 - 6
In Broadcast - October/November 2011 - 7
In Broadcast - October/November 2011 - 8
In Broadcast - October/November 2011 - 9
In Broadcast - October/November 2011 - 10
In Broadcast - October/November 2011 - 11
In Broadcast - October/November 2011 - 12
In Broadcast - October/November 2011 - 13
In Broadcast - October/November 2011 - 14
In Broadcast - October/November 2011 - 15
In Broadcast - October/November 2011 - 16
In Broadcast - October/November 2011 - 17
In Broadcast - October/November 2011 - 18
In Broadcast - October/November 2011 - 19
In Broadcast - October/November 2011 - RTL Choses Quantel
In Broadcast - October/November 2011 - 21
In Broadcast - October/November 2011 - 22
In Broadcast - October/November 2011 - 23
In Broadcast - October/November 2011 - Studios In Production
In Broadcast - October/November 2011 - 25
In Broadcast - October/November 2011 - 26
In Broadcast - October/November 2011 - 27
In Broadcast - October/November 2011 - 28
In Broadcast - October/November 2011 - 29
In Broadcast - October/November 2011 - 30
In Broadcast - October/November 2011 - 31
In Broadcast - October/November 2011 - 32
In Broadcast - October/November 2011 - 33
In Broadcast - October/November 2011 - 34
In Broadcast - October/November 2011 - 35
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In Broadcast - October/November 2011 - 37
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In Broadcast - October/November 2011 - 41
In Broadcast - October/November 2011 - 42
In Broadcast - October/November 2011 - 43
In Broadcast - October/November 2011 - 44
In Broadcast - October/November 2011 - 45
In Broadcast - October/November 2011 - 46
In Broadcast - October/November 2011 - 47
In Broadcast - October/November 2011 - MAM Questions Answered
In Broadcast - October/November 2011 - 49
In Broadcast - October/November 2011 - Changing Faces of Post Production
In Broadcast - October/November 2011 - 51
In Broadcast - October/November 2011 - Microphones In Action
In Broadcast - October/November 2011 - 53
In Broadcast - October/November 2011 - 54
In Broadcast - October/November 2011 - 55
In Broadcast - October/November 2011 - 56
In Broadcast - October/November 2011 - 57
In Broadcast - October/November 2011 - 58
In Broadcast - October/November 2011 - 59
In Broadcast - October/November 2011 - 60
In Broadcast - October/November 2011 - 61
In Broadcast - October/November 2011 - 62
In Broadcast - October/November 2011 - 63
In Broadcast - October/November 2011 - New Developments in Audio for Television
In Broadcast - October/November 2011 - 65
In Broadcast - October/November 2011 - 66
In Broadcast - October/November 2011 - 67
In Broadcast - October/November 2011 - 68
In Broadcast - October/November 2011 - 69
In Broadcast - October/November 2011 - 70
In Broadcast - October/November 2011 - 71
In Broadcast - October/November 2011 - Routers and Switchers
In Broadcast - October/November 2011 - 73
In Broadcast - October/November 2011 - 74
In Broadcast - October/November 2011 - 75
In Broadcast - October/November 2011 - 76
In Broadcast - October/November 2011 - 77
In Broadcast - October/November 2011 - 78
In Broadcast - October/November 2011 - 79
In Broadcast - October/November 2011 - 80
In Broadcast - October/November 2011 - Loudness Measuring in Workflows
In Broadcast - October/November 2011 - 82
In Broadcast - October/November 2011 - 83
In Broadcast - October/November 2011 - 84
In Broadcast - October/November 2011 - 85
In Broadcast - October/November 2011 - 86
In Broadcast - October/November 2011 - 87
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In Broadcast - October/November 2011 - 90
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