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SMT-VAR is a configurable video replay system built specifically on FIFA’s foundational requirements of video latency, quality and synchronicity.

Utilizing input and feedback from experienced operators and industry professionals, SMT-VAR allows referees and operators to review any moment quickly, efficiently and accurately from every camera angle. In addition, SMT-VAR combines the FIFA-certified SMT-VOL solution into one product, so operators can easily toggle between video review and offside line decisions from a single interface.   

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Robust and intuitive user interface built for operators of any skill level

Configurable controls, layouts and settings to suit operator’s preferences

Scalable system (video servers and clients) to fit any sized production

Control SMT-VAR and SMT-VOL from same application

Easily adjustable system to work with any sport/event

Efficient post-event workflow to export clips and access video from event


SMT-VAR is comprised of three core SMT technologies:










A simultaneous playback and record video server, SMT-Tandem functions as the engine that drives all video in SMT-VAR. All incoming video sources route through SMT-Tandem for processing before outputting the video to client machines.


SMT-Tandem’s user interface provides a variety of system status checks, configuration options and monitoring information so that users can confirm the video flow is operating as intended. All inputs are recorded and stored locally on the system for post-event accessibility.


SMT-Tandem utilizes “channels” as a destination directory for recording inputs. Each input maps to a channel for recording. The output is loaded from each channel and continuously chases live video.


SMT-Tandem is built to manage a variety of input video formats. The output video to client machines can have a configurable delay adhering to specific protocols.




SMT-Kaleidoscope is the front-end, video tile display client that combines all video outputs from SMT-Tandem(s) and makes each video source available to view simultaneously in a tiled mosaic. In a VAR system, the Replay Operator user role and VAR user role each run their own instance of SMT-Kaleidoscope.

Operator controls, available through a library of hotkeys and/or external device, include:


Playback Controls

  • Play/Pause

  • Jog/Shuttle at variety of speeds

  • Frame-by-frame video stepping

  • Single-button go-to-live retrieves latest video during live event

  • Paired with the JLCooper Slo-Mo Elite controller, a professional-grade replay device, for expanded playback controls including a speed adjust T-bar

Configurable layouts

  • Preset standard layouts for a variety of sources

  • Layouts can be selected from preset list (2x2, 3x3, 4x4, etc.)

  • Custom layouts can be built and saved to each user account for easy access

Custom input labels

  • Every input assigned a label

  • The operator can rename labels

Incident marking

  • Mark a point in time for easy recall for greater analysis

  • Build a library of incidents organized by incident lists

  • Mark each incident with a starting timecode

  • Video tiles of selected incidents can be updated with starting and ending timecodes

  • Incident list color-coded by user role to quickly determine if incident marked by the RO, VAR or AVAR

  • Incident list will grow as event progresses, sorting from most recent

  • Incidents can be manually renamed and dynamically deleted if deemed not critical​

Tile zooming

  • Allows closer look at the action

  • Zoom percentage indicator

  • Reset button quickly restores the tiles back to default state

  • VAR touchscreen allows pinch to zoom and general touch events




SMT’s 37 years of experience touching every aspect of the live sports industry has led SMT to create a powerful organizing philosophy called OASIS and a powerful data and video management system called the OASIS Platform (Organization of Asynchronous Sports Information Subsystems).


OASIS as an organizing philosophy views the data landscape of a sports league in three (3) layers:


Level 0       All subsystems that create data or video

Level 1       The central hub that absorbs, collates, synchronizes, organizes, expands, and

distributes all Level 1 data via push and query APIs

Level 2       All subsystems that consume, present, or use the data


As a product, the OASIS Platform is a highly integrated, multi-venue, time-synchronized, multilevel, data/video management system that SMT architected, designed and created to provide professional sports leagues with a centrally controlled and league-controlled platform to organize, maintain, administer, and manage all phases of the league’s data creation, data distribution, data visualization, and data monetization.


Using SMT defined protocols, SMT-VAR utilizes OASIS for user management, organization of events & sessionIDs, reviewing incident playlists and exporting of post-event clips, all within a web app dashboard called SMT-VAR Manager. This online dashboard makes it easy for league administrators to monitor status of events and protocols. The export tool allows users to export incidents in a variety of formats, including all available cameras, configurable destination paths and addition of pre/post roll time to each exported clip.


Additionally, OASIS is fundamental to the integration and organization of player-tracking data to use in SMT-VOL mode.

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  • SMT-Tandem

    • 1RU chassis

    • Embedded SSD storage for up to 4 disks

    • Windows OS

    • SDI I/O card

  • SMT-Kaleidoscope

    • 1RU chassis

    • Windows OS

    • SDI I/O card

  • Compact External Playback Controller

  • 24in Touchscreen VAR Monitor