Videowall controllers: the hidden technology behind large-scale AV
Large-scale AV gets attention because of what people can see: expansive videowalls, high-impact digital signage, immersive content and screens operating across entire venues.
But the display size is only one part of the system.
Reliable large-scale AV depends on the technology behind it. Displays need the right physical infrastructure. Content must reach the correct destination. Multiple sources and screens need processing and control. Digital signage hardware needs to deliver content reliably. As systems grow, each of those elements becomes more important.
A large-scale AV system typically needs:
- Secure, adaptable display infrastructure
- Reliable signal distribution across greater distances
- Scalable AV over IP
- Content delivery across multiple screens
- Videowall controllers and processors
- Centralised AV control
- Infrastructure that can support future expansion
These are the Hidden Heroes behind the experience.
Large-scale AV is a system challenge, not a screen-size challenge
Putting a larger display into a space does not automatically create a large-scale AV solution.
Projects become more complex when installers add more screens, more sources, greater distances and more destinations. A digital signage deployment across a venue has different requirements than a single screen in reception. A multi-display control room needs more processing than a single presentation display. An LED wall needs physical infrastructure capable of supporting precise installation as well as the technology required to process and deliver content.
That means resellers and integrators need to consider the complete signal path at specification stage.
Where does the content originate? How many destinations need it? Does every screen show the same thing? Will operators need to change layouts or sources? How will AV move around the building? What happens if the customer adds another display later?
The most effective large-scale AV systems answer these questions before installation starts.
The display infrastructure must support the ambition
The physical installation can determine how easily a large-format display or videowall can be installed, aligned, maintained and adapted.
For large-scale projects, mounting is not simply the final stage after the display has been selected. It forms part of the system design.
The Peerless LEDUNV provides display infrastructure for large-scale LED applications, while the DS-WV775-QR supports multi-display installations. Where an application requires a large display to remain mobile rather than permanently installed, the Peerless SR598 provides another approach.
The principle matters beyond any individual product. The larger or more complex the visual installation becomes, the more important accurate positioning, access and serviceability become.
An impressive display is only useful if the infrastructure behind it allows the project to be installed and supported properly.
Discover Peerless solutions for large-scale display infrastructure.
AV over IP gives larger systems room to grow
Traditional point-to-point AV connections can work well when the source and destination are close together and unlikely to change.
Large environments introduce a different problem.
A source may need to reach several destinations. Different content may need to appear on different displays. Sources and screens may sit across separate areas of a building or venue. The customer may also want to add endpoints later without redesigning the entire system.
This is where AV over IP becomes particularly valuable.
Instead of treating every source-to-display connection as an individual path, AV over IP allows audio and video signals to move across network infrastructure using encoders and decoders.
The Atlona LumaStream Encoder and LumaStream Decoder support this distribution layer, with RTMP/S streaming for extending content beyond the local AV network, videowall capabilities for multi-display applications and Dante audio integration for flexible networked audio. The Velocity Control System provides the control element, bringing connected technologies together within the wider AV environment.
For integrators, scalability should be part of the specification from the beginning. A system that meets today's endpoint count but becomes difficult to extend can create unnecessary work later.
The question should not only be, how many screens does the customer need now?
It should also be, what happens when they need another ten?
Discover the technology supporting scalable AV distribution and control.
Content delivery matters as much as content creation
Large-scale digital signage is often discussed in terms of displays and creative content, but the hardware responsible for delivering that content sits between the two.
Media players are a critical part of the digital signage hardware layer.
They need to take the content created by the customer or content platform and deliver it reliably across multiple displays and increasingly complex visual experiences.
The BrightSign XT5 Series, XD6 Series and HD6 Series provide content delivery options across different digital signage requirements.
This matters because digital signage projects should not start and end with display specification.
Resellers need to understand what the customer intends to show, how often content will change, how many endpoints they need to manage and whether the experience will require more advanced playback or interaction.
A display shows the experience.
The content delivery layer makes sure the experience reaches the right screen in the right format.
Explore BrightSign digital signage hardware for large-scale deployments.
Videowall controllers turn multiple displays into one experience
As visual installations become more complex, simply getting a signal to the display is no longer enough.
Content may need to span multiple screens. Several sources may need to appear on one canvas. Operators may need to resize, reposition or switch content. Large LED canvases may also require content to be prepared for resolutions and aspect ratios that differ significantly from conventional displays.
That is the role of the videowall controller and videowall processor.
Rather than treating every display as an isolated endpoint, processing technology lets an integrator manage how sources appear across the complete visual canvas.
The tvONE CALICO PRO 4200, listed as coming soon, provides a processing option for demanding large-scale visual applications. CORIOview MWP-4Y-1Y supports multi-window processing, while Green Hippo Hippotizer Meuse brings media processing and playback into the wider large-scale visual workflow.
This processing layer becomes increasingly important as the number of sources, displays and creative requirements grows.
The more complex the final visual experience looks, the more work the system must do behind the scenes to make it appear simple.
Discover video processing technology for large-scale AV.
Specify the complete system, not a collection of products
In large-scale AV, the biggest specification challenges often sit between the obvious components.
Can the infrastructure support the displays? Can the signal travel where it needs to go? Can the system scale? Can the correct content reach every endpoint? Can operators control it without introducing unnecessary complexity? Can processors handle the required number of sources, outputs and layouts?
These questions connect the individual products into a complete system.
For resellers and integrators, this creates an opportunity to move the conversation beyond individual specifications. Understanding the application, signal path, content requirements, control needs and likely future expansion can uncover requirements that a display-led conversation alone will miss.
That is where specialist AV knowledge can help resellers identify requirements earlier, reduce specification risk and build a more complete solution.
FAQs
What is a videowall controller?
A videowall controller manages how video sources appear across multiple displays. Depending on the system, it can allow content to span several screens, show multiple sources simultaneously and control how those sources are positioned within the overall canvas.
What is the difference between a videowall controller and a videowall processor?
The terms are often used interchangeably. A videowall processor focuses on processing and arranging video signals for one or more displays. A videowall controller can also refer more broadly to the technology used to manage the overall multi-display experience. The exact capabilities depend on the system being specified.
What is AV over IP?
AV over IP distributes audio and video using IP network infrastructure. Encoders place AV signals onto the network, and decoders retrieve them at the required destination. This approach can make larger systems easier to expand and route than fixed point-to-point connections.
What hardware is needed for large-scale digital signage?
Requirements depend on the application, but a large-scale digital signage system can include displays, mounting, media players, network infrastructure, signal distribution, video processing and control. The right combination depends on the number of displays, content requirements and how the customer intends to manage the system.
Why are audio visual control systems important in larger AV projects?
As the number of sources, displays and endpoints increases, individual device control becomes less practical. Audio visual control systems give operators a more centralised way to manage connected technologies and can make complex systems easier to operate.
The Hidden Heroes behind large-scale AV
Large-scale AV works because multiple technology layers work together.
Peerless provides the physical display infrastructure. Atlona supports scalable distribution and control. BrightSign delivers content to the screens. tvONE and Green Hippo provide the processing needed to turn sources into compelling multi-screen visual experiences.
None of these elements operates in isolation.
Midwich brings them together with specialist AV expertise, UK-held stock and Plus+ services to help resellers and integrators specify and deliver the complete project.
Discover the Hidden Heroes for your next large-scale AV project on the Midwich Store.
