World Games 2017 featured 3,500 athletes from 112 countries and was produced remotely via IP.
A team of engineers and production crews in tandem with a wealth of video transport and management equipment from Lawo helped support the live broadcast of Poland’s first live IP remote production; the recent World Games 2017, from Wroclaw on Jul 20 –30, 2017. The new IP-based remote production model replaced the use of nine Satellite News Gathering (SNG) systems and their operators, and the use of satellite links to the IBC, that were employed for the Games’ since 2008.
Using the new remote production model, Polish systems and services provider ATM System—part of ATM Grupa SA’s technical resources, offering television production services and technical support for OB events, successfully produced and broadcast 429 hours of live coverage from all of the World Games venues on behalf of the International World Games Association (IWGA).
The World Games 2017 are often referred to as the “Alternative Olympics” and feature many sporting activities not covered by traditional Olympian events. This year the Games saw 3,500 athletes from 112 countries compete.
As the host broadcaster, ATM System handled all of the broadcast resources at the International Broadcast Center (IBC) and all remote event locations. It also deployed its full mobile production truck fleet, in combination with other contracted OB van companies.
With the help of Lawo, ATM set up a scaled-down version of that used for a major European soccer tournament last year. Remote Racks were located at the various venues to collect video and audio feeds, and routed them to the IBC where they were forwarded via SDI to the central router.
The solution involved a large quantity of Lawo equipment: including V__remote4 units, A__mic8 units, Arista7150S-24 switches, and a dual-server Virtual Studio Manager (VSM) System for overall control. Working closely with Polish partners LP Systems, who supplied the Lawo equipment and cared for testing and logistics, and 4Vision, who provided the VSM System, Lawo specialists configured, tested and delivered the systems that were then supported by staff from LP Systems and all other participating companies during the setup and event days.
The signal flow began at the OB Vans, and then passed to the Lawo Venue Remote Racks, which fed the IBC’s Lawo Main Rack. It was then acquired by the IBC’s central video router. A total of nine Remote Racks were used to serve 13 venues, linked to a local OB Van. These included two loaded with a pair each of V__remote4s and A__mic8s, two racks loaded with two V__remote4 and an A__mic8, and five racks with V__remote4 and A__mic8 units.
The A__mic8s fed analog audio into the network to the IBC for the Intercom system, and out again on the return route. In the IBC, the Intercom was linked via MADI to one of the V__remote4 units, with the bi-directional audio paths between the IBC and the remote venues were handled via RAVENNA/AES67 streams. On the venue side, the analog links of the audio inputs and outputs to the OB Van are established by the A__mic8.
The signal flow began at the OB Vans, then passed to the Lawo Venue Remote Racks which fed the IBC’s Lawo Main Rack.
The Lawo V__remote4 units supplied the World Video Signal, comprising the “clean” World Feed and “dirty” feed carrying additional statistics and graphics. From the IBC these were forwarded via six V__remote4s as HD-SDI to the Video Router, and then distributed unilaterally. Additionally, the use of two data lines in conjunction with the SMPTE 2022-7 Hitless Merge functionality of the V__remote4 allowed for real network redundancy.
While the Games are now being regarded as the most difficult logistical undertaking in the history of Polish sport, the move to IP-based remote broadcast production greatly simplified and improved their television coverage.
“The use of signal contribution via IP-based racks with Video-over-IP and Audio-over-IP interfaces, and signal transfer via managed data lines brought considerable benefits over conventional technology,” said Martin Körner, Project Manager. “As well as being considerably more cost efficient, the alternative use of the Lawo racks and rental of 10 GB data lines has the further benefit of data lines always being available – in contrast to satellite time. The Lawo setup also allows central remote control and monitoring from the IBC, bringing additional benefits is ease of operation and lower cost.”
Additionally, two pairs of V__remote4 units were used for the transmission of signals from the IBC in Wroclaw to Television Polsat in Warsaw, who broadcast the World Games as unilateral partner of ATM. Two 1Gbit connections were used for sending 8 HD-SDI streams (J2K compression).
You might also like...
In the previous article in this series, “Understanding OTT Systems”, we looked at the fundamental differences between unidirectional broadcast and OTT delivery. We investigated the complexity of OTT delivery and observed an insight into the multi-service provider silo culture. In thi…
In part 8 of the series “Data transmission and storage”, consultant John Watkinson looks at some of the intricacies of RF transmission.
Moving to IP opens a whole plethora of options for broadcasters. Engineers often speak of the advantages of scalability and flexibility in IP systems. But IP systems take on many flavors, from on-prem to off-prem, private and public cloud. And…
In this series of articles, we investigate OTT distribution networks to better understand the unique challenges ahead and how to solve them. Unlike traditional RF broadcast and cable platform delivery networks, OTT comprises of many systems operated by different companies…
Part one of this four-part series introduces immersive audio, the terminology used, the standards adopted, and the key principles that make it work.