
Video-Assistant Replay Relies on Comms for Critical Audio Component Riedel and Clear-Com are among vendors supporting sound in a changing officiating picture By Dan Daley, Audio Editor
Tuesday, November 26, 2024 - 7:00 am
Print This Story | Subscribe
Story Highlights
Video replay has changed sports. Not just broadcast sports - the television-replay infrastructure has been integrated into league-review protocols - but sports itself: fans in the stands perch on the edge of their seats watching the big screen after a challenged call. They're accustomed to awaiting a ruling from a distant commissioner's office on a close, perhaps outcome-defining play. Technology asks fans, as Chico Marx was fond of saying, Who you gonna believe: me or your own eyes?
And fans are listening as well: for instance, since 2022, MLB umpires use a lavalier-type microphone and bodypack to announce decisions made by the replay booth.
Intercoms Enter the Picture As video-assistant-replay systems became ubiquitous, intercom systems were called on to provide the audio backbone for the VAR platforms, with audio playing an increased role. Riedel Communications has staked out a sizable footprint in the sector, providing encrypted communications between field and home-office officials for both the Premier League and Germany's Bundesliga. It now provides those services for the NFL and MLB as well, and other U.S. leagues are in discussions, according to Jan Schaffner, program manager, Americas, Managed Technology Division, Riedel.
Riedel's Jan Schaffner: What about putting what is talked about [between officials] live on-air? We suggested, Why not take [fans] with them on a journey?
We're providing the bidirectional wireless communication system that goes onto the [bodypack] with a push-to-talk button, which allows hands-free operations, as well as the headset that is used, he explains, referring to the Bolero S product, a more compact iteration of Riedel's regular Bolero platform. They can use that to talk to another referee or to talk to the PA system.
It's also fully encrypted, using AES standards. That feature is especially critical now that sports betting has become extremely granular - so-called microbetting - with wagers placed on the outcomes of even individual pitch velocities.
Is There a Doctor in the House? According to Kristopher Koch, business development director, broadcast, network, and media production, Clear-Com, whose systems are now in use with the MLS and NWSL, the key requirements for this application of comms are real time and reliable, as well as secure. Our ability to connect remotely over LAN, WAN, or internet securely is an advantage when we're working on projects.
Intercom-type back-channel systems in this area are expanding their range of application. For instance, Koch notes, they're increasingly used to alert first responders to possible injury situations.
Clear-Com's Kristopher Koch points out that intercom-type back-channel VAR systems are used to alert first responders to possible injury situations.
If somebody in the replay center knows that a player may have suffered a concussion, for instance, you can immediately call the doctor on the field, he explains. The doctor on the field can get to that player faster and do an evaluation sooner. That has real implications for all sports.
The audio systems can be integrated into any of several goal-line technologies on the market, such as SloMo's VideoReferee and SporTec Solutions (STS); for instance, , Bolero S is integrated with STS for the Bundesliga, Schaffner says. We work with several providers and are flexible when it comes to integrating our system into theirs. He adds that, although Riedel has its own standalone, FIFA-certified replay solution, it supplies Bolero S only as part of larger VAR systems.
The Importance of VAR Increasingly, the video replay determines the result of the play. Once simply a happy benefit of televised sports, it has now been built into its own platform across a growing number of sports. The Premier League wrote the Video-Assistant Referee platform and process into its rulebook in 2018, following extensive trialing in major competitions. The process has become virtually transparent in European soccer, where VAR systems automatically check, quietly in the background, every on-field-referee decision falling under the four reviewable categories.
Although video replays have been a regular part of the officiating protocol in the NFL for some years, the league this year adopted a Premier League-style VAR system to review and correct miscalls by on-field officials.
In what some call collaborative officiating, active VAR is blurring the line between on-field refs and the replay booth, essentially making league officials active participants in post-play field-call adjudication. MLB has been using video replays since 2014, following a 2012 missed call that mistakenly extended NY Mets pitcher Johan Santana's franchise-first no-hitter. A subsequent and seemingly endless list of could-have-beens have solidified the case for VAR across sports.
Fans in the Loop There is also a fan-engagement aspect. Waiting to hear an official announce a decision from a higher authority during a critical moment in a game heightens the drama. In fact, says Schaffner, that contributed to leagues' originally agreeing to put some of the process into the PA system: Whenever a decision is challenged, [fans] are kind of in the dark and just have to wait until the decision is announced. What about putting what is talked about [between officials] live on-air? We suggested, Why not take [fans] with them on a journey?
Remote officiating is also paralleled by remote management of the audio quality. Certain games deploying Riedel systems are connected to the company
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
09/10/2026
September 10 2026, 06:00 (PDT) Dolby Expands Dolby OptiView Platform with New Capabilities at IBC 2026
New Sports Intelligence helps providers better unders...
07/10/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Haymaker VFX acquires SWISS
Brie Clayton October 2, 2026
0 Comments
Stockholm-based, globally recognized creative team becomes part of Haymaker VFX in...
02/10/2026
Treasure & Dirt Shot with URSA Cine 17K 65
Brie Clayton October 2, 2026
0 Comments
DP Edward Goldner, ACS, relied on 65mm sensor to capture vast deser...
02/10/2026
Sonnet Announces Industry's Only Bus-Powered 10 Gigabit Ethernet Thunderbolt...
02/10/2026
Mediaproxy brings AI driven monitoring and browser based multiviewing to NAB Sho...
02/10/2026
Cobalt Digital's Pacific Line Wins Two Future Best of Show Awards at IBC
Brie Clayton October 1, 2026
0 Comments
Manufacturer receives honors from...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
02/10/2026
Cinematographer Andres Arochi was on his way back from filming in Spain when he got the call that Tim Burton would be directing a music video for Lady Gaga and ...
02/10/2026
Cobalt Digital's Pacific Line Wins Two Future Best of Show Awards at IBC
Manufacturer receives honors from both TV Tech and TVB Europe for advancements in...
02/10/2026
Maxon, maker of powerful, approachable software solutions for creators working in 2D and 3D design, motion graphics, visual effects and visualization, today ann...
02/10/2026
The strengthened TriCaster portfolio increases accessibility to leading media technology, drives more creative experiences, and scales with every production wit...
02/10/2026
LA JOLLA, CA-To sense their environment and respond accordingly, cells enlist me...
02/10/2026
Agility Beyond Space achieves ISO 27001 certification, strengthening the securit...
02/10/2026
How the fertility sector in Ireland remains unregulated
Undercover filming reveals how without proper regulation the promotion of controversial fertility treat...
02/10/2026
Transforming Homes, Transforming Lives
Presenter Baz Ashmawy and his team take on four life-changing builds across Kildare, Limerick, Wicklow and Offaly in the...
02/10/2026
Local AI is becoming more useful by the token.
As AI agents move from experiments into everyday development, increasingly capable open models are shrinking to ...
01/10/2026
Big Blue Marble has announced the addition of live multiview channels to its Clo...
01/10/2026
The company CEO sees AI as a tool in speeding and enhancing product development
...
01/10/2026
Production, tech, crewing, and logistics teams draw on experience of a busy inau...
01/10/2026
The Partnership Will Support Filmmakers Worldwide Through Original Short Films I...
01/10/2026
Third collaboration with celebrated composer
Spitfire Audio have once again teamed up with Grammy-nominated composer, producer and technologist BT, creating...
01/10/2026
FL Studio gets dedicated grid controller
Novation have teamed up with FL Studio developers Image-Line to create another dedicated controller for the popular...
01/10/2026
Six new USB interfaces introduced
Universal Audio's USB audio interface line-up has just been refreshed, gaining six new models aimed at musicians, prod...
01/10/2026
Siretta's SNYPER-5G cellular network analyser has been shortlisted for the IoT Global Awards 2026.
The IoT Global Awards recognise products, services and o...
01/10/2026
Johannesburg, South Africa, 30 September 2026 - The National Film and Video Foun...
01/10/2026
Mesh Broadcast Services Fits Big-Truck Audio Power into Compact Eclipse Unit with Calrec Argo M Canadian OB company Mesh Broadcast Services has fitted its Eclip...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
For more than two decades, Disguise has powered some of the most ambitious live events and experiences in the world from Bad Bunny and Coachella to the Burj K...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/10/2026
The Australian football team can turn match footage into tactical insights to improve performance and maximize fan engagement
Vizrt, the AI platform for visual...
01/10/2026
When Mesh Broadcast Services set out to fit the pro audio capability of a large TV truck into a small audio room for high-profile sports events, Calrecs Argo M ...
01/10/2026
Emergent, the browser-native broadcast graphics platform, today announced the appointment of Tom Shelburne as Head of Business Development, North America, effec...
01/10/2026
Melbourne, Australia 1 October 2026: Mediaproxy, the global standard for software-based IP compliance monitoring and multiviewing solutions, will showcase maj...
01/10/2026
Clear-Com is supporting the education and development of future audiovisual industry professionals in Poland through the deployment of its Arcadia Central Sta...
01/10/2026
Telef nica Servicios Audiovisuales (TSA), the audiovisual services arm of global telecommunications group Telef nica, has supplied and commissioned an LED wall ...