
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 ...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Maxon Expands Creative Possibilities with New Touch and Spatial Experiences in Cinema 4D and ZBrush for Apple Products New capabilities let artists interact wi...
06/11/2026
Big Daddy Kane to Be Inducted Into Berklee's Hip-Hop Hall of Fame The Grammy-winning emcee joins an iconic roster of inductees in an event that features s...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/11/2026
Black Friday Deals from Flanders Scientific, Inc - An Atomos Company
Brie Clayton November 5, 2026
0 Comments
Purchase any FSI monitor between now and...
06/11/2026
COW Jobs: Faith-Based UGC Video Creator - Remote
Brie Clayton November 5, 2026
0 Comments
Faith-Based UGC Video Creator (Remote, Part-Time)
November...
06/11/2026
Discover a week of themed programming and content across RT 's services
Documentaries | Kids | Podcasts | Ireland's city of the future | More
Includes...
06/11/2026
A year ago, NVIDIA open sourced its Aerial wireless software, joining Sionna and...
05/11/2026
The Chicago native has emerged as a leader at Marquette's student-run production operation, directing broadcasts, mentoring peers, and building toward a car...
05/11/2026
Sky Sports will broadcast the inaugural 2026 and 2027 seasons of the women's TGL (WTGL) exclusively in the UK, as part of an expansion of its golf rights th...
05/11/2026
CP Communications worked with Gravity Media to bring Gravity's SMARThead rob...
05/11/2026
Gravity Media developed a remote production solution for Beyond Productions'...
05/11/2026
Canon U.S.A. has announced a firmware update for its Cinema EOS cameras, includi...
05/11/2026
Canon Inc. is celebrating the 15th anniversary of the Cinema EOS System this month, Canon U.S.A. announced. Launched in 2011 for professional video production, ...
05/11/2026
Canon U.S.A. has announced new Cinema EOS Lens Kits and an EOS C50 Videographer Kit. Sales are scheduled to begin in mid-November 2026.
The lens kits pair the ...
05/11/2026
Dick Stockton's broadcasting career was marked by longevity, versatility, an...
05/11/2026
The United Football League Draft is set to take place at Ball Park Village in St. Louis on beginning on November 18 and the UFL today announced that players fro...
05/11/2026
Most compact Qu-series consoles to date
Allen & Heath have just revealed two new additions to their Qu digital mixer line-up, the Qu-3 and Qu-3D. The new ar...
05/11/2026
We take a look at the first touchscreen-equipped Mac The new MacBook Pro with PROLED XDR Display brings Touch to the Mac for the first time.Photo: Apple
By M...
05/11/2026
SGL Carbon's consolidated sales in the first nine months of 2026 totaled 59...
05/11/2026
Rohde & Schwarz and Pegatron validate FR3 phased array technology for dual strea...
05/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/11/2026
24i, the pioneering data-driven video streaming company, and TV Factory AG today announced a significant expansion and multi-year renewal of their strategic par...
05/11/2026
Telestream, a global leader in media workflow and measurement technologies, has just announced the appointment of Joseph Hopkins as Chief Revenue Officer (CRO)....
05/11/2026
How to Recreate the Classic Movie Star Trek Warp Effect in After Effects
Graham Quince November 5, 2026
0 Comments
How did the filmakers create the or...
05/11/2026
Towson University Graduate and Marine Corps Veteran Builds a Career with Blackma...
05/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/11/2026
Hungary's first LED cinema, in Budapest, combines cutting-edge HeyLED display technology with Lightware's AV solutions to deliver an exceptional cinemat...
05/11/2026
COW Jobs: Film Delivery and Servicing Lead - Mars, PA
Brie Clayton November 5, 2026
0 Comments
Film Delivery and Servicing Lead
October 27, 2026COW ...
05/11/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/11/2026
AI agents do more than generate answers. They search for information, query databases, write and test code and take action.
Each of those steps relies on a CP...
05/11/2026
Thursday 5 November 2026
Sky Sports and Sir Gareth Southgate's 1071 Media p...
05/11/2026
Offers include Sky Essential TV with Full Fibre 500Mbps for £32 a month, Full Fibre 500Mbps for £26 a month, plus savings on Apple iPad, Samsung Galaxy and Goog...
05/11/2026
Previously announced David Oyelowo and Viola Prettejohn star as Mikael Blomkvist and Lisbeth Salander in Sky's timely new evolution of Stieg Larsson's g...
05/11/2026
It used to be around this time of year that I, like most Australians, started looking forward to summer. Barbecues and beaches are, after all, what we do best. ...
05/11/2026
Discover Integrated Live Production Solutions and Meet the Broadcast Pix Team at ACM Northeast 2026 Tyngsboro, Mass. - November 5, 2026 - Broadcast Pix is excit...
05/11/2026
Arqiva signs DCC contract to support smart metering services through to 2037New contract to maintain services as industry transitions to a 4G national solution....
05/11/2026
RT is home to the top ten radio programmes in the country
28.3% market share with almost 2 million people listening every week
Gains for Kieran Cuddihy's...
05/11/2026
Larger models, longer contexts and agentic applications are increasing GPU memor...