Ask the experts - Transitioning to IP


Craig Newbury TV-Bay Magazine
Read ezine online

1) What has been the broadcast industry's feeling about the move to an all IP workflow?

Transitioning from conventional signal transport to an all-IP environment in broadcast or content production operations seems to be a matter of "when" rather than "if," as it brings a great number of advantages with it.

IP is touted as offering numerous benefits, including lowered capital and installation costs, large weight reductions of mobile production vehicles, and use of easily replaceable and upgradable off-the-shelf "generic" equipment from the computer network sector. However, a shift to any new technology or business model is almost always accompanied by a certain amount of anxiety or even discomfort. There seems to be a great deal of apprehension and uncertainty about IP, and possibly even more than in the 1990s when we began to get serious about transitioning from analog to digital technology. Some of the same arguments voiced then are being heard now: the inability to simply troubleshoot signal flows (plugging headphones or video monitors into patch panels), putting all of one's eggs in one basket (muxing audio with video), and operational uncertainty surrounding the new technology (difficulties in monitoring levels and a difference in the methods used to speedily identify and restore failed equipment or signal paths).

Some of this trepidation could stem from the very nature of IP - no more direct "point A-to-point-B" signal pathing, unpredictable latencies, software-driven transport systems, radically new troubleshooting techniques and - especially in the audio realm - a lack of consensus or standardization about the best way to achieve IP connectivity. This need not be the case, as with careful planning and embodiment of technologies available it is possible to enjoy the best of both worlds.

2) Is IP mature enough of a technology to support a broadcast workflow?

While broadcasters may harbor some concerns about IP, it's important to note that there is really nothing new or untried about the concept of moving packets of data containing built-in addressing information, or datagrams, from multiple sources to multiple destinations through a common network. IP came into being more than 40 years ago and is the mainstay of the Internet. If such technology didn't work well and offer a high level of reliability, the Internet would never have gained acceptance.

3) What are some of the benefits of IP?

IP brings with it many very real and tangible benefits. One is the use of low-cost and lightweight "CAT" data cable instead of conventional coaxial and shielded twisted-pair cabling. This can greatly reduce fixed facility construction costs, and in the case of a large mobile production truck, substantially reduce curb weight, increasing allowable payloads and potentially reducing operating costs over the life of the vehicle. Another advantage is the substitution of off-the-shelf IP data switches for massive and expensive conventional audio and video routing systems leading to cost savings. An IP switching system and infrastructure is totally agnostic when it comes to signal format. An SDI router with SD inputs would balk when confronted with HD video or discrete AES/EBU audio signals, but this is not the case with IP. SD, HD, 3G and UHD packets are all accommodated as well as different audio "flavors" (mono, stereo, 5.1, 9.1, etc.) in varying sampling rates. Even in such a limited IP application as the replacement of conventional multicore audio "snakes" with networked audio connectivity can be beneficial - from easier deployment, lighter weight and reduced complexity in construction and maintenance.

Other big advantages that come from transporting audio and video signals on an IP network include the capability for remotely monitoring signal flow and the health of these signals from virtually anywhere in the world, and the ability to easily and speedily reconfigure a single piece of equipment connected to the network, or simultaneously make changes to any number of network-connected devices. Similarly, a network environment like this lends itself to dynamic reconfiguration to accommodate special routing and/or processing requirements during certain portions of the broadcast day, or for the origination of special events outside the studio environment. These SDN and IP-connected systems could eventually lead to the abandonment of conventional outside broadcast practices, with little more than direct-to-cloud cameras deployed at the sports center or other remote venue, and switching, DVE, monitoring, intercom and other equipment remaining behind at the studio facility and repurposed as required.

4) What approach should broadcasters take when moving over to IP?

The best way to approach this move to IP is to learn from our recent move to digital. Transitioning from a conventional infrastructure to an IP-connected environment doesn't necessarily mean a "flash cut" any more than it did when moving from analog to digital. A much more reasonable approach was to ease into the new technology with the creation of "islands of digital." Similarly, a "hybrid" approach to IP can be the reasonable line of attack when making the move to this new technology. Several broadcast audio monitor manufacturers are already offering interfaces to tie IP switching to conventional A/V routing operations.

While the success of several large audio and video IP implementations in recent years should allay any concerns about latency and lack of predictability in packet delivery, beginning with the audio side of things might be the least stressful way to go when moving to IP. Any packet delays that might occur are rarely a factor in audio delivery, as they're well within the window of consumer acceptability.

5) What are some elements that one should look for when starting the transition to IP?

Established broadcast manufacturers are jumping on the IP bandwagon by offering gear to create IP infrastructures, but it's important to identify those solutions which offer user-friendly switching and monitoring.

In planning and implementing such an audio IP "island," as I previously mentioned, a number of broadcast audio monitor manufacturers offer control system interfacing to make the new way of doing business operationally transparent to control room personnel and alleviate any angst associated with it. Similarly, audio signal monitoring within a hybrid environment should be equally transparent to operators, provided appropriate monitoring gear is installed. Ideally, only a single monitoring instrument should be necessary for observing both legacy and IP-networked audio. In selecting a suitable monitor, you also need to consider its ability to work with a variety of protocols. There is still some industry uncertainty about which is ideally the "best" networking system, since multiple, and not necessarily compatible and sometimes proprietary, protocols like RavennaTM, DanteTM, AES67 and others exist at the present time.

While a number of monitoring solutions are available from several manufacturers, few have the ability to work with both existing audio "flavors" (analog, discrete and SDI-muxed AES/EBU) and IP-delivered audio arriving in a multiplicity of protocols. Even fewer IP audio monitors can transmit AoIP, making it a versatile gateway component. One line offering this versatility is Wohler's iAM Series of monitors. They combine easy and intuitive operation, along with rich data displays and seamless switching between various audio formats and protocols. Wohler's iAM-MIX and iAM-AUDIO solutions should also be considered when moving into a hybrid "conventional" and IP audio environment. In addition to monitoring, iAM units provide audio mixing capability and provide convenient labeling of sources. Both lines offer browser-based operation, front panel controls and remote monitoring and logging capability. In addition, they will continue to be easily software upgradable as new audio-over-IP protocols and standards emerge.

Craig Newbury is Vice President of Sales & Marketing for Wohler Technologies, leading manufacturer of video, audio and data monitoring solutions.


Tags: iss115 | wohler | ip | Craig Newbury
Submitted by Craig Newbury

Read this article in the tv-bay digital magazine
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Submitted by Mathieu Marano Click to read or download PDF
Security, Identity and Privacy
Bruce Devlin - new Put your hand up if you have more than one online-identity. Keep your hand up if the adverts for your latest online purchase follow you between identities as you surf the web. You can now let your hand fall into your lap because adverts that follow you indicate algorithms that have merged your multiple identities into the one and only you.
Tags: iss131 | class | Security | Identity | Privacy | gdpr | Bruce Devlin - new
Submitted by Bruce Devlin - new Click to read or download PDF
Delivering on the 4k Promise
Lorna Garrett It’s happened. Consumers are demanding 4K UHD content. They have the TVs, smartphones, tablets and other devices they need, and with much of Netflix and Amazon original content in 4K, as well as sports coverage from BT and Sky, consumers have tasted the future of content quality and are hungry for more. But broadcasters need not worry if their customers have enough bandwidth to receive 4K content - the solutions are ready to make 4K distribution a reality. New viewers are waiting if you’re ready to get to them first.
Tags: iss131 | garland | 4k | uhd | hevc | hc11000 | media excel | Lorna Garrett
Submitted by Lorna Garrett Click to read or download PDF
Informed Disruption
Marc Risby The industry is currently going through an enormous amount of disruption, and while many are charging in to embrace the changes, others are wringing their hands with indecision.
Tags: iss131 | boxer | ip | hdr | 4k | Marc Risby
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TVFutures : Bouncing Back
Jane Lawrance When I arrived at the University of Portsmouth three years ago, I would never have thought in my wildest dreams I would end up where I am now. My time at university has been eye opening, informative and fun. Of all the lessons I have learned in the past three years, resilience is the one that has taught me the most. Starting out in the television industry is hard. Like many others, I’ve applied for graduate job after graduate job and been pipped to the post and rejected many times. I have also started projects and been faced with a variety of unexpected setbacks. Yet, my drive to enter this industry remains just as strong because bouncing back is the joy of resilience.
Tags: iss131 | portsmouth uni | graduate | job | Jane Lawrance
Submitted by Jane Lawrance Click to read or download PDF
Slow Motion Video Techniques
Phil Vinter Well, those kinds of higher frame rates still pretty much belong to the big guns. The Phantom Flex will give you 2,000 frames a second at ultra HD or 1,000 fps at 4K. It produces truly stunning images, but at a price that is beyond the reach of all but those with the biggest budgets. The camera retails at a cool £100,000 (I’ll have three please) with a daily hire out charge of around £3,000 (including lighting and a technician). IDT’s OS series cameras produce equally high quality images at a cheaper price, but you’re still talking tens of thousands.
Tags: iss131 | slo-mo | phantom | idt | fs7 | fs5 | rx10 mk111 | hfr | Phil Vinter
Submitted by Phil Vinter Click to read or download PDF
VR and the importance of tracking
KitPlus I would like to begin this article by clarifying what we at Shotoku mean when we talk about VR in live production. It’s not the production of immersive, 360 content where you need to wear a headset; we are talking about virtual studio (VS) and augmented reality (AR) work, such as placing graphics into a green screen environment or physical set. The technology used for this work is entirely different, though equally specialist – therefore it is important to understand the challenges of this kind of production in order to make informed kit choices.
Tags: iss130 | shotoku | vr | live production | KitPlus
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Out of the box: Sennheiser Ambeo VR microphone
Jon Pratchett 2 The use of 360 video, especially on platforms like Facebook and YouTube is really starting to take off. Gone are the days when you needed to buy multiple GoPros and rigs in order to get something decent looking. Now players like Insta360 and even GoPro with their fusion 360 camera are providing single camera, high quality solutions, enabling the masses to put out reasonable quality, certainly watchable, 360 video.
Tags: iss130 | vr | virtual reality | audio | ambiosonic | Jon Pratchett 2
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Reliable back-up at the Music City Bowl
Sam Gordon WLEX – LEX18 – is the NBC affiliate in Lexington, Kentucky, and part of the Cordillera Communications Group. As a very popular local station with a broadcast area that covers 40 counties across central Kentucky we have a big commitment to news, broadcasting more than seven hours of live programming on a typical day.
Tags: iss130 | wlex-tv | dejero | engo | gobox | cellsat | Sam Gordon
Submitted by Sam Gordon Click to read or download PDF
Tried and tested: DPA d:vice
KitPlus KitPlus recently took delivery of an interesting piece of equipment for review. We like our iPhone gadgets here. For us, useful iPhone gadgets started when the Olloclip lens gave us a wide angle adaptor. This was a good start, finally evolving into a proper tool when Ziess produced the Exolens system for the 5,6 & 7 series iPhones. Around the same time as the Olloclip came out we were testing the Fostex AR4i which was a very exciting development at the time. You have a portable device, that you carry everywhere with you, connected to the world but with very limited audio capabilities. A stereo interface with decent microphones was a real boon!
Tags: iss130 | dpa | dvice | iphone | journalist mic | filmic | ios | microdot | KitPlus
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Why OTT needs multicast ABR
Damien Lucas Last year, Netflix’s global revenue reached $11 billion, with 24 million new names added to its subscribers’ list. Viewers are certainly making their preferences heard – and voting with their remote controls to show that over-the-top (OTT) content is here to stay.
Tags: iss130 | ott | abr | adaptive bit rate | cdn | dsl | lte | Damien Lucas
Submitted by Damien Lucas Click to read or download PDF
Technological advances in the broadcast industry
Alan Wheable Since it is Omnitek’s 20th anniversary this year, I thought it would be interesting to look back over the technological advances in the broadcast industry over the last few decades and look at the similarities between then and now.
Tags: iss130 | omnitek | test and measurement | smpte 2110 | untra tq | 2022 | sdi 2022-6 | Alan Wheable
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Interview with Peter Rowsell, Polar Graphics
Polar If you don’t recognise the name Peter Rowsell instantly you no doubt would recognise him in person, from the famous ‘Pink Coconut’ parties during IBC (Brighton) in the 80s or the name ‘Polar Video or Polar Graphics’ both companies which he’s built up over the years.
Tags: iss130 | polar graphics | apantac | bluefish | cinedeck | focalpoint | mediaproxy | stardom | storagedna | Polar
Submitted by Polar Click to read or download PDF
How IP-based KVM can improve workflow in broadcast control rooms
John Halksworth One of the most significant shifts the broadcast industry has seen over recent years is the adoption of IP technology as a standard infrastructure across the entire broadcast workflow. IP provides a network suitable for routing audio, video and control around a broadcast facility and is providing the answers to many industry challenges.
Tags: iss130 | kvm | adder | adderlink | alif100t | John Halksworth
Submitted by John Halksworth Click to read or download PDF
Meet the experts: Six steps for award winning sound design
Chris Turner Few can argue that great sound design is one of the most important elements to any moving picture. Mute most horrors, and the difference in fear factor will be enormous. Visualize Jaws or Star Wars, and John Williams’s iconic score will instantly come to mind.
Tags: iss130 | jungle studios | fairlight | blackmagic design | davinci | Chris Turner
Submitted by Chris Turner Click to read or download PDF
TV Futures, Tales on Location
Georgia Thirtle If I think back to last May, I was just finishing my second year at the University of Portsmouth, studying Television and Broadcasting, and winding down for the summer. Then out of the blue I got a message from my course leader, saying I might be getting a call from someone who was a location manager working for Raider productions, you know, the production company behind the upcoming Tomb Raider film, I mean, what!?
Tags: iss130 | portsmouth university | tomb raider | cci tv | ccitv | Georgia Thirtle
Submitted by Georgia Thirtle Click to read or download PDF
NAB is all about people
John Smith -new The relative success of NAB is down to people. The individuals we meet, the relationships we make and renew with customers and the desire to work together to develop a technology solution to any given challenge.
Tags: iss130 | media links | nab | mdp 3020 | md8000 | John Smith -new
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State of the Nation
Dick Hobbs - new

On the most recent occasion I was trimmed, my hairdresser had just returned from a holiday in Hawaii.

Where she thought she was going to die. She thought this because the state’s emergency alert system was triggered, sending messages across all available platforms, for 38 minutes, that a ballistic missile was about to strike. That, I suspect, is the sort of thing that casts a pall across your holiday.

Why did it happen? Essentially it happened because an operator selected the wrong menu item. “I feel very badly from what’s happened,” he is quoted as saying, in a somewhat mangled version of English which may at least in part explain his difficulties with menu items.

Tags: iss130 | alertsense | Dick Hobbs - new
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The shining star of Dancing On Ice
Rod Aaron Gammons Lighting is an incredibly important part of any TV production, and it can make a huge difference to what is seen on-screen. If the right lights are used in the right way, it can create a mood, set a tone and convey a certain atmosphere.
Tags: iss130 | rotolight | led lighting | anova pro 2 | chris yacoubian | Rod Aaron Gammons
Submitted by Rod Aaron Gammons Click to read or download PDF
Transforming asset management and monetization
Chad Hamilton FremantleMedia is one of the largest global television-production companies in the world — with one of the biggest and most valuable catalogs. We operate in 36 markets, creating, producing, and distributing content across traditional TV and digital platforms at a rate of more than 10,000 hours of programming per year.
Tags: iss130 | freemantlemedia | core | wazee | Chad Hamilton
Submitted by Chad Hamilton Click to read or download PDF
Grand slam IPTV and digital signage platform
Joe Walsh Kauffman Stadium in Kansas City, Missouri, is home to major league baseball’s Kansas City Royals. Built in 1973, “The K” has a proud baseball legacy, and goes down in history for winning two World Series championship titles; one in 1985 and another in 2015 — exactly 20 years apart. The most recent win brought a resurgence of baseball fever to the stadium, hosting more than 2.7 million fans during its 2015 winning season.
Tags: iss130 | iptv | vitec | eztv | Joe Walsh
Submitted by Joe Walsh Click to read or download PDF
Taking the lead in the HEVC and 4k revolution
Malcolm Harland There’s probably a good reason that BVE is held in late February — it offers you a few weeks to set your annual plans in place. Then, once you’ve decided on the opportunities you want to take advantage of and improvements you want to make, you have a chance to visit this massive exhibition to see the latest technological innovations that will help to bring your plans to fruition.
Tags: iss129 | garland | hevc | liveu | hc11000 | media excel | ntt | bws | lu600 | Malcolm Harland
Submitted by Malcolm Harland Click to read or download PDF
Class: Do we still need standards
Bruce Devlin - new On the 1st January 2018, I officially took on the post of SMPTE Standards Vice President. The role has responsibility for all of SMPTE’s standardisation activities and it fills me with equal measures of excitement and terror.
Tags: iss129 | smpte | st2110 | dpp | Bruce Devlin - new
Submitted by Bruce Devlin - new Click to read or download PDF
Studio Invate - Case Studio
KitPlus Studio INVATE is a video company based in Bangkok, with an inventive reputation. Its public persona is everyday commercial work, such as producing highly creative videos, live broadcasts and commercials, for companies ranging from large industrial brands and retail businesses to educational institutions. But in between the studio and on-location work for clients, the company’s crew of 14 employees and a few dozen freelancers enjoy live-streaming video game tournaments.
Tags: iss129 | invate | newtek | tricaster 8000 | 3play | 4800 replay | blonde robot | KitPlus
Submitted by KitPlus Click to read or download PDF
Steadicam M-1 Volt: Tried and Tested
John E Fry Early in November some of us lucky Steadicam Operators from around the UK were invited to try out the new Tiffen M1 Volt, which is essentially an electronic motorized horizon assist unit attached to the gimbal of the latest Steadicam M1. Is it a good idea? As experienced Steadicam Operators, directors or producers, why would we be interested? Let’s investigate KitPlus fans!
Tags: iss129 | steadicam | volt | tiffen | m1 | John E Fry
Submitted by John E Fry Click to read or download PDF
Panasonic GH5: Tried and Tested
Tim Bearder My journey as a filmmaker began with a select number of enthusiastic BBC reporters picked out and trained in the concept of Personal Digital Production by the American Video Journalist Michael Rosenblum.
Tags: iss129 | panasonic | gh5 | dslr | senheirser avx | c200 | Tim Bearder
Submitted by Tim Bearder Click to read or download PDF
Empowering connectivity choice in the field
Yvonne Monterroso Reliability, flexibility and ease of use are the key requirements when covering the news and live events, especially when the location could be anywhere. Connectivity is one of the biggest concerns in the field when the pressure is on to capture a key event – if you cannot establish a reliable transmission path to send your video back to the broadcast studio, there is no story.
Tags: iss129 | dejero | satellite | streaming | ku-band | cloud | Yvonne Monterroso
Submitted by Yvonne Monterroso Click to read or download PDF
Somewhere down the latency river
Ben Hawker Some people have been, understandably, getting fairly excited over the prospect of being able to deploy wireless cameras to capture and transmit 4K UHD. Manufacturers and developers are closing in on the ability to deliver systems that will offer up almost endless creative options at the highest – to date – possible picture quality.
Tags: iss129 | latency | 4k | wireless | rf | presteigne | Ben Hawker
Submitted by Ben Hawker Click to read or download PDF
IP for everyone and 4k everywhere - that will be 2018
John Smith -new My first prediction for the coming year is that the use of IP to move broadcast content will increase dramatically.  Ultimately, it will become the commonplace, just as the use of IP has become part of our everyday, consumer lives.  Live sports are closely linked to this growth, as conversion of broadcast signals for transportation across established telecos networks enables content to be viewed in real-time, regardless if it’s in the next room or across the globe.
Tags: iss129 | medialinks | 4k | ip | vr | ai | John Smith -new
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2018: A Changing of the Guard
Peter Savage 2 The guys at KitPlus asked me if I could write about what I think is going to happen in 2018 – a feel, or mood, piece of what we might see this year. I’m not sure why they asked me but perhaps it’s because I’ve been around the industry a long time. Anyway, to look forward I think sometimes it’s best to look back as history has a habit of repeating itself.
Tags: iss129 | azule | finance | Peter Savage 2
Submitted by Peter Savage 2 Click to read or download PDF
A Pandoras Box to empower the filmmaker
KitPlus The setting was Celebro Studios London, home to their fully 4k television studios, where journalists and industry commentators gathered late last November to witness the launch of the revolutionary Rotolight Anova PRO 2. This was no ordinary unveiling though, the launch was streamed live on Facebook and YouTube and hosted by award winning news anchor man Martin Stanford with Wesley Dodd, CEO of Celebro Media Group and Rotolight MD Rod Gammons in the studio.
Tags: iss129 | rotolight | celebro | anova pro 2 | led | lighting | wesley dodd | rod gammons | KitPlus
Submitted by KitPlus Click to read or download PDF
Canon C200: Tried and Tested
Ben Sherriff There are many reviews about this camera online and a heap of incredibly detailed comparison and behind the scenes footage that will really give you a full insight into what it can do. So first a disclaimer - this review is less detailed and based on my personal reading of what this camera means for Canon and all other camera manufacturers and us – the users of these technologies. So, what’s all the fuss about?
Tags: iss129 | spellbinder | canon | c200 | c100mkii | c300 | red | alexa | asx-r7 | Ben Sherriff
Submitted by Ben Sherriff Click to read or download PDF
A new AEON in Wireless 4k
JP Delport Whatever production companies are doing right here, right now, today, with wireless HD production tools, they want to do right here, right now, today with 4K UHD. That’s great, but common wisdom would share a host of challenges around 4k UHD, not least, the fact that 4K UHD requires 8x the processing power to transmit, then demands additional horsepower (and bandwidth) to accommodate the data and controls, wireless or otherwise, and of course, when you ramp up processing power, you ramp up heat generation, which needs to be efficiently evacuated.
Tags: iss129 | 4k | uhd | wireless | domo | JP Delport
Submitted by JP Delport Click to read or download PDF
The Outlook for 2018
Duncan Payne January has arrived…and the New Year promises great opportunities for those prepared to seek them out, with the one certainty that change is constant.
Tags: iss129 | adamantean | finance | cvp | netflix | amazon | arri | hdr | sadie groom | rise | Duncan Payne
Submitted by Duncan Payne Click to read or download PDF
Innovation in cameras moving to 4k
Tony Valentino For a number of reasons, wireless camera links needed time to migrate to 4K. However Broadcast Sports International, BSI, designs their own cameras and builds their own hardware and their transition to 4K is already complete.
Tags: iss129 | bsi | ref-cam | wireless | 4k | Tony Valentino
Submitted by Tony Valentino Click to read or download PDF
Epictech makes headway: A case study
Daniel Harker Barnes Founded in January 2014, EpicTech Media have been providing high end video production to companies and musicians across the U.K. for over three and a half years. When approached earlier this year by the band Bodkin Lane, we relished the challenge of producing a video of their charity concert, in aid of Headway (www.headway.org.uk), despite the challenging size of the venue. 
Tags: iss129 | polecam | epictech media | ptz | povcam | Daniel Harker Barnes
Submitted by Daniel Harker Barnes Click to read or download PDF
Capturing the spirit of Mexico
Leonardo Dalessandri Filmmaker, director and editor, Leonardo Dalessandri first came to fame with his stunning video ‘Watchtower of Turkey,’ which with more than 200 million views, garnered the accolade of Best Vimeo Video in 2014. His vibrant images are combined with a unique editing style, incorporating slow motion, hyper lapses and invisible match cuts to produce genuinely breathtaking final results.
Tags: iss129 | watchtower of turkey | davinci resolve | blackmagic. corona | Leonardo Dalessandri
Submitted by Leonardo Dalessandri Click to read or download PDF