Video: Remote Production

Remote production is changing. Gone are the days when it meant leaving some of your team at base instead of sending them with the football OB. Now it can mean centralised remote production where, as Eurosport has recently shown, TV stations around Europe can remotely use equipment hosted in two private cloud locations. With the pandemic, it’s also started to mean distributed remote production, where the people are now no longer together. This follows the remote production industry’s trend of moving the data all into one place and then moving the processing to the media. This means public or private clouds now hold your files or, in the case of live production like Eurosport, the media and the processing lives there too. It’s up to you whether you then monitor that in centralised MCR-style locations using multiviewers or with many people at home.

This webinar hosted by EVS in association with the Broadcast Academy which is an organisation started by HBS with the aim of creating cosntency of live production throughout the industry by helping people build their skillsets ensuring the inclusion of minorities. With moderator James Stellpflug from EVS is Gordon Castle from Eurosport, Mediapro’s Emili Planas, producer & director John Watts and Adobe’s Frederic Rolland.

Gordon Castle starts and talks with the background of Eurosport’s move to a centralised all-IP infrastructure where they have adopted SMPTE ST 2110 and associated technologies putting all their equipment in two data centres in Europe to create a private cloud. This allows producers in Germany, Finland, Italy and at least 10 other markets to go to their office as normal, but produce a program using the same equipment pool that everyone else uses. This allows Eurosport to maximise their use of the equipment and reduce time lying idle. It’s this centralised remote production model which feeds into Gordon’s comment about wanting to produce more material at a higher quality. This is something that he feels has been achievable by the move to centralisation along with giving more flexibility for people on their location.

Much of the conversation revolved around the pandemic which has been the number one forcing factor in the rise of decentralised remote production seen over the last two years where the workforce is decentralised, often with the equipment centralised in a private or public cloud. The consensus in the panel is that the move to home working is often beneficial, but splitting up the team is a problem in the long term. A team that has worked together for a long time can survive on this is previously gained knowledge of how people work, their benefits and relationships forged in the heat of broadcast and over the dinner table. Bringing together a new team without close interpersonal contact raises the risk of transactional behaviour, not working as a team or simply not understanding how other people work. A strong point made is that an OB is like a sports team on the pitch. The players know where they are supposed to be, their role and what they are not supposed to do. They look out for each other and can predict what their teammates will want or will do. We see this behaviour all the time in galleries around the world as people produce live events, but the knowledge that rests on as well as the verbal and visual cues needed to make that work can be absent if the team has always worked remotely.

Economics plays a role in promoting remote production within companies. For Gordon, there’s a cost benefit in not having OBs on site although he does acknowledge that depending on the country and size of the OB there are times when an on-site presence is still cheaper. When you don’t have all staff on site, people are more available for other work meaning they can do multiple events a day, though John Watts cautions that two football matches are enough for one director if they want to keep their ‘edge’. The panel share a couple of examples about how they are keeping engagement between presenters despite not being in the same place, for instance, Eurosport’s The Cube.

On technical matters, the panel discusses the difficulty of ensuring connectivity to the home but is largely positive about the ability to maintain a working-from-home model for those who want it. There are certainly people whose home physically doesn’t accommodate work or whose surroundings with young family members, for instance, don’t match with the need to concentrate for several hours on a live production. These problems affect individuals and can be managed and discussed in small teams. For large events, the panel considers remote working much more difficult. The overhead for pulling together multiple, large teams of people working at home is high and whether this is realistic for events needing one hundred or more staff is a question yet to be answered.

As the video comes to a close, the panel also covers how software, one monolithic, is moving towards a federated ecosystem which allows broadcasters more flexibility and a greater opportunity to build a ‘best of breed’ system. It’s software that is unlocking the ability to work in the cloud and remotely, so it will be central to how the industry moves forward. They also cover remote editing, the use of AI/ML in the cloud to reduce repetitive tasks and the increased adoption of proxy files to protect high-quality content in the cloud but allow easy access and editing at home. 5G comes under discussion with much positivity about its lower latency and higher bandwidth for both contribution and distribution. And finally, there’s a discussion about the different ways of working preferred by younger members of the workforce who prefer computer screens to hardware surfaces.

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Speakers

Emili Planas Emili Planas
CTO and Operations Manager,
Mediapro
John Watts John Watts
Executive Producer, Director & Broadcast Academy Expert
Fred Rolland Fréderic Rolland
International Manager, Strategic Development, Video Business,
Adobe
Gordon Castle Gordon Castle
SVP Technology,
Eurosport
James Stellpflug Moderator: James Stellpflug
SVP Markets,
EVS

Video: Live Media Production – The Ultimate End Game

A lot of our time on this website is devoted to understanding the changes we are going through now, but we don’t adopt technology for the sake of it. Where’s this leading and what work is going on now to forge our path? Whilst SMPTE ST 2110 and the associated specifications aren’t yet a mature technology in that sense SDI, we’re past the early adopter phase and we can see which of the industry’s needs aren’t yet met.

Andy Rayner from Nevion is here to help us navigate the current technology space and understand the future he and Nevion envision. The beginning of the video shows the big change in process from the workflows of the 90s where the TV station moved to sports events to now where we bring the event to the broadcaster in the form of a light connectivity truck turning up and deploying cameras at the event leaving most people either at home or back at base doing the production there. Andy has been involved in a number of implementations enabling this such as at Discovery’s Eurosport where the media processing is done in two locations separate from the production rooms around Europe.

 

 

Generalising around the Discovery case study, Andy shows a vision of how many companys will evolve their workflows which includes using 5G, public and private clouds as appropriate and including control surfaces being at home. To get there, Andy lays out the work within AMWA and SMPTE creating the specifications and standards that we need. He then shows how the increasing use of IT in live production, the already IT-based NLE workflows are able to integrate much better.

Looking to the future, Andy explains the work ongoing to specify a standard way of getting video into and out of the cloud including specifying a way of carrying 2110 on the WAN, helping RIST and formalising the use of JPEG XS. Andy anticipates a more standardised future where a best of breed system is possible down to individual logical components like ‘video keyer’ and ‘logo insertion’ could be done by separate software but which seamlessly integrate. Lastly, Andy promises us that work is underway to improve timing within 2110 and 2110-associated workflows.

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Speaker

Andy Rayner Andy Rayner
Chief Technologist
Nevion

Video: AES67 Over Wide Area Networks


AES67 is a widely adopted standard for moving PCM audio from place to place. Being a standard, it’s ideal for connecting equipment together from different vendors and delivers almost zero latency, lossless audio from place to place. This video looks at use cases for moving AES from its traditional home on a company’s LAN to the WAN.

Discovery’s Eurosport Technology Transformation (ETT) project is a great example of the compelling use case for moving to operations over the WAN. Eurosport’s Olivier Chambin explains that the idea behind the project is to centralise all the processing technology needed for their productions spread across Europe feeding their 60 playout channels.

Control surfaces and some interface equipment is still necessary in the European production offices and commentary points throughout Europe, but the processing is done in two data centres, one in the Netherlands, the other in the UK. This means audio does need to travel between countries over Discovery’s dual MPLS WAN using IGMPv3 multicast with SSM

From a video perspective, the ETT project has adopted 2110 for all essences with NMOS control. Over the WAN, video is sent as JPEG XS but all audio links are 2022-7 2110-30 with well over 10,000 audio streams in total. Timing is done using PTP aware switches with local GNSS-derived PTP with a unicast-over-WAN as a fallback. For more on PTP over WAN have a look at this RTS webinar and this update from Meinberg’s Daniel Boldt.

 

 

Bolstering the push for standards such as AES67 is self-confessed ‘audioholic’ Anthony P. Kuzub from Canada’s CBC. Chair of the local AES section he makes the point that broadcast workflows have long used AES standards to ensure vendor interoperability from microphones to analogue connectors, from grounding to MADI (AES10). This is why AES67 is important as it will ensure that the next generation of equipment can also interoperate.

Surrounding these two case studies is a presentation from Nicolas Sturmel all about the AES SC-02-12-M working group which aims to define the best ways of working to enable easy use of AES67 on the WAN. The key issue here is that AES67 was written expecting short links on a private network that you can completely control. Moving to a WAN or the internet with long-distance links on which your bandwidth or choice of protocols is limited can make AES67 perform badly if you don’t follow the best practices.

To start with, Nicolas urges anyone to check they actually need AES67 over the WAN to start with. Only if you need precise timing (for lip-sync for example) with PCM quality and low latencies from 250ms down to as a little as 5 milliseconds do you really need AES67 instead of using other protocols such as ACIP, he explains. The problem being that any ping on the internet, even to something fairly close, can easily take 16 to 40ms for the round trip. This means you’re guaranteed 8ms of delay, but any one packet could be as late as 20ms known as the Packet Delay Variation (PDV).

Not only do we need to find a way to transmit AES67, but also PTP. The Precise Time Protocol has ways of coping for jitter and delay, but these don’t work well on WAN links whether the delay in one direction may be different to the delay for a packet in the other direction. PTP also isn’t built to deal with the higher delay and jitter involved. PTP over WAN can be done and is a way to deliver a service but using a GPS receiver at each location, as Eurosport does, is a much better solution only hampered by cost and one’s ability to see enough of the sky.

The internet can lose packets. Given a few hours, the internet will nearly always lose packets. To get around this problem, Nicolas looks at using FEC whereby you are constantly sending redundant data. FEC can send up to around 25% extra data so that if any is lost, the extra information sent can be leveraged to determine the lost values and reconstruct the stream. Whilst this is a solid approach, computing the FEC adds delay and the extra data being constantly sent adds a fixed uplift on your bandwidth need. For circuits that have very few issues, this can seem wasteful but having a fixed percentage can also be advantageous for circuits where a predictable bitrate is much more important. Nicolas also highlights that RIST, SRT or ST 2022-7 are other methods that can also work well. He talks about these longer in his talk with Andreas Hildrebrand

The video concludes with a Q&A.

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Speakers

Nicolas Sturmel Nicolas Sturmel
Product Manager – Senior Technologist,
Merging Technologies
Anthony P. Kuzub Anthony P. Kuzub
Senior Systems Designer,
CBC/Radio Canada
Olivier Chambin Olivier Chambin
Audio Broadcast Engineer, AioP and Voice-over-IP
Eurosport Discovery

Video: Global Delivery of the 2018 Winter Olympics

Eurosport hold the European rights to the Olympics from 2018 until 2024. Owned by Discovery Inc., Eurosport had a big challenge to bring the Olympics to so many countries in so many languages.

In this talk, Tine Austvoll Jensen, CEO of Discovery Norway, presents the key numbers and take-aways from the successful coverage the Winter Olympics. Presented at Northern Waves in Oslo 2018.

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Requires free registration.

Speaker

Tine Jensen Tine Jensen
CEO,
Discovery Networks Norway