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Reference

Glossary

27 terms

Reference glossary of video-wall, control-room, and ProAV terminology — what each term means, how it relates to a software video wall, and where to read more.

  • Video wall — A coordinated array of displays driven by a single processor so that any source can occupy any region of the combined canvas.
  • NDI (Network Device Interface) — An IP-based protocol from NewTek/Vizrt for transporting low-latency, frame-accurate video and audio between devices on a standard Ethernet network.
  • KVM (Keyboard, Video, Mouse) over IP — A switching technology that lets one operator console reach the keyboard, video, and mouse of remote machines over an IP network — central to modern control rooms.
  • Multiviewer — A device or software that combines many video sources into a single composite output for monitoring on one screen — historically a broadcast tool, now common in NOCs and AV.
  • NOC (Network Operations Center) — A facility where operators monitor and manage telecom networks, IT infrastructure, and connected services 24/7.
  • SOC (Security Operations Center) — A facility focused on detecting, investigating, and responding to cybersecurity threats across an organisation in real time.
  • Situation room (situation centre) — A purpose-built facility for cross-functional decision-making during emergencies or large-scale operations — the operational descendant of military command rooms.
  • SCADA (Supervisory Control and Data Acquisition) — An industrial control architecture for monitoring and remotely commanding physical equipment — power grids, pipelines, water systems, manufacturing lines.
  • AV over IP — The general practice of carrying audio and video signals over IP networks instead of dedicated cabling — the foundation of every modern control room and broadcast facility.
  • Video wall controller — The hardware appliance or software platform that drives a video wall — composing sources, managing layouts, and surviving failures.
  • IPMX — Open AV-over-IP standard built on SMPTE ST 2110 but adapted for ProAV: JPEG-XS compression, optional PTP, native HDCP, NMOS management.
  • NMOS — Open suite of specifications for discovering and managing networked media devices: IS-04 for discovery, IS-05 for connection control.
  • SMPTE ST 2110 — Broadcast-grade family of standards for carrying uncompressed video, audio and ancillary data over IP networks, with PTP-locked timing.
  • SDVoE — Software Defined Video over Ethernet — uncompressed AV-over-IP standard built around 10 GbE and the Aquantia / Marvell AQrate chipset.
  • IP-KVM — Keyboard, video and mouse signals carried over an IP network instead of dedicated KVM cabling, letting any operator desk reach any source PC.
  • Edge AI for video walls — On-prem machine-learning inference inside the video wall pipeline: anomaly detection, automatic source promotion, face / plate counting — without sending feeds to the cloud.
  • WebGPU — Browser-native GPU API that replaces WebGL with Vulkan/Metal-class semantics: compute shaders, multi-threaded command encoding, two-orders-of-magnitude performance gain.
  • MicroLED — Direct-view LED display technology with sub-millimetre pixel pitch, 96% BT.2020 colour gamut, ~100,000 hour lifetime — the successor to fine-pitch LCD for control-room walls.
  • dvLED (direct-view LED) — Display technology where each pixel is a directly visible LED diode — no LCD layer, no projection. Encompasses fine-pitch LED video walls used in control rooms, broadcast studios, and high-end signage.
  • NDI HX — High-efficiency NDI variant. Uses H.264 or H.265 compression instead of full NDI's lightly-compressed visually-lossless format — fits NDI signals onto low-bandwidth networks like Wi-Fi at the cost of slightly higher latency and CPU/GPU decode overhead.
  • Dante AV — Audinate's AV-over-IP transport. Started as Dante audio (the dominant pro-audio networked-audio standard), extended to networked video. Competes with SDVoE for low-latency AV-over-IP at the operator-control tier.
  • SRT (Secure Reliable Transport) — Open-source streaming protocol developed by Haivision. Delivers low-latency video over unpredictable public-internet links with packet-loss recovery and AES encryption — the standard for contribution feeds and remote-production backhaul.
  • Pixel pitch — The centre-to-centre distance between adjacent pixels on a display, in millimetres — the single number that drives minimum viewing distance for a direct-view LED video wall.
  • Bezel correction — The display-driver technique that hides the physical bezel between LCD panels in a video wall by offsetting the image so straight lines and moving objects appear continuous across the seam.
  • PSIM (Physical Security Information Management) — Software that aggregates feeds from access control, intrusion detection, CCTV, alarms, and other physical-security subsystems into a single operational view for security operations centres.
  • EOC (Emergency Operations Centre) — A facility from which multi-agency emergency response is coordinated during an activation — distinct from a NOC by being activation-driven, multi-agency, and command-and-control structured.
  • PTP (Precision Time Protocol, IEEE 1588) — An IEEE-standardised network protocol that distributes a common clock across Ethernet endpoints to sub-microsecond accuracy — the timing backbone for uncompressed AV-over-IP standards like SMPTE ST 2110.