The 1990s: When AV Was Hardware Heavy

A typical commercial AV installation in the 1990s was physical, bulky and highly cable-dependent. Meeting rooms, lecture theatres and function spaces often relied on overhead projectors, slide projectors, VHS players, CRT monitors, early LCD projectors, analogue mixers and large equipment racks. Every signal had its own cable path. Video used composite, S-Video, component or VGA. Audio used balanced XLR, RCA or speaker cable. Control was often handled through infrared remotes, push-button panels or RS-232 commands.

This era required strong practical installation skills. Technicians had to understand signal loss, impedance, grounding, analogue noise, cable shielding and physical routing. A poor cable termination, a long VGA run or a noisy audio line could quickly become the difference between a working system and a frustrating client experience.

But the systems were also limited. Expansion usually meant more hardware, more cabling and more rack space. If a client wanted to add more sources, more displays or more rooms, the answer was often a larger matrix switcher, additional cable runs and more complex manual control. AV was powerful, but it was not yet flexible.

The Digital Shift: HDMI Changed the Room

The early 2000s marked one of the most important turning points in audio visual installation: the move from analogue to digital signal transport. HDMI simplified the connection between source and display by carrying uncompressed digital video and audio over a single cable. This changed expectations almost overnight.

Instead of separate video and audio paths, installers could deliver sharper images, higher resolutions and cleaner cabling. DVD, Blu-ray, digital signage players, laptops and later streaming devices all pushed the industry toward digital-first system design. The evolution from standard definition to HD, then 4K and now 8K, created a new baseline for image quality.

This was not just a display improvement. It changed how AV systems were designed. Digital signals demanded new knowledge around EDID, HDCP, resolution scaling, firmware, compatibility and bandwidth. The AV installer was no longer only a cabling and equipment specialist. They also had to understand digital signal behaviour.

Audio Became Intelligent

Audio also went through a major transformation. In the 1990s, many systems used analogue mixers, outboard EQs, amplifiers and passive loudspeakers. The audio path was largely physical. Microphones ran to mixers, mixers ran to amplifiers, and amplifiers ran to speakers.

Modern audio visual installation is built around digital signal processing. DSP platforms now handle equalisation, feedback suppression, echo cancellation, automatic microphone mixing, room tuning, routing, compression, dynamics and presets. This is especially important in meeting rooms, classrooms, council chambers, churches, courtrooms and venues where speech intelligibility is critical.

Networked audio has been one of the biggest improvements. Technologies such as CobraNet, Dante and AES67 moved multi-channel audio away from heavy analogue snakes and into standard network infrastructure. A single network cable can now carry many audio channels between microphones, processors, amplifiers and recording systems. This has reduced cabling, improved flexibility and allowed systems to be reconfigured through software rather than physical rewiring.

AV-over-IP: The Biggest Industry Change

If one advancement has made the biggest change to the AV industry, it is the convergence of AV and IT through AV-over-IP.

Traditional AV matrix switching was limited by hardware inputs and outputs. An 8x8 matrix gave you eight sources and eight destinations. If the system needed to grow, the hardware often had to be replaced. AV-over-IP changed that model. Instead of routing every signal through a fixed matrix, sources and displays can now connect to a network using encoders and decoders. The network becomes the distribution platform.

This has completely changed the scalability of audio visual installation. A display can be added by installing another decoder. A source can be added by installing another encoder. Large buildings, campuses, hotels, universities, hospitals and government facilities can distribute AV across rooms, floors and sites using managed network infrastructure.

This is where the modern AV contractor must also become an IT-literate integrator. VLANs, multicast, QoS, network security, bandwidth planning, switch configuration and remote monitoring are now part of professional AV delivery. AV is no longer isolated. It lives on the network.

Control Systems Became User Experience Platforms

In older AV systems, control was often functional but basic. A wall panel might turn on a projector, switch between VGA and video, or adjust volume. More complex systems used RS-232 and proprietary control processors, but the user experience was still relatively limited.

Modern control systems are different. Touchscreens, mobile apps, web interfaces, occupancy sensors, scheduling panels and voice control have turned AV control into a user experience platform. A modern meeting room can start a video call, lower a screen, turn on displays, adjust lights, select microphones, route content and monitor system health from one interface.

This is a major shift. The success of an AV installation is no longer judged only by whether the equipment works. It is judged by whether the room is easy to use. A technically advanced system that confuses the user is still a failed installation. Modern AV design must therefore balance engineering with simplicity.

Displays Moved From Equipment to Architecture

In the 1990s, displays and projectors were often large, heavy and visually dominant. CRT projectors, rear-projection systems and bulky monitors required significant structural planning. Screens were used when needed and hidden when not.

Today, displays are part of the architecture. Slimline commercial panels, LED video walls, interactive screens, digital signage networks and ultra-short-throw laser projectors can be integrated into walls, joinery, classrooms, foyers and public spaces. Display technology is brighter, sharper, longer lasting and more flexible.

Laser projection has reduced lamp maintenance. LED walls have enabled large-format visual impact without traditional projection constraints. Interactive displays have changed classrooms and collaboration spaces. Digital signage has turned AV from a presentation tool into a communications platform.

The Rise of Hybrid Work and Collaboration

The COVID-19 period accelerated a change that was already underway. Video conferencing moved from a boardroom luxury to a business necessity. Teams, Zoom and Webex rooms became standard. Cameras, microphones, speakers, displays and room control had to work together seamlessly.

This created new expectations for audio visual installation. Rooms now need to support in-person and remote participants equally. Camera framing, microphone pickup, acoustic treatment, echo cancellation, lighting and display placement all matter. A meeting room is no longer just a screen on a wall. It is a communication environment.

The best modern AV installations are designed around inclusion. Everyone in the room should be heard. Everyone online should be seen. Content should be easy to share. The system should be simple enough for any staff member to use without calling technical support.

Maintenance Became Managed Support

Another major evolution is the move from reactive service to managed AV support. In the past, many systems were repaired only when something stopped working. A technician would attend site, diagnose the issue and replace or repair hardware.

Modern AV systems can be monitored remotely. Devices can report faults, firmware can be updated, systems can be rebooted, logs can be reviewed and issues can often be diagnosed before a technician arrives. Cloud dashboards and network-based management tools have changed the service model.

This is especially important for schools, government, healthcare, venues and corporate environments where AV failure can interrupt operations. The value of an AV installation now extends beyond handover. Ongoing support, preventative maintenance and lifecycle planning are part of the system.

The New Role of the AV Integrator

The evolution of audio visual installation has changed the role of the AV professional. The modern integrator needs a wider skill set than ever before. They must understand cabling, electrical infrastructure, acoustics, networking, software, cybersecurity, control programming, user interface design, commissioning and support.

The industry has moved from “installing equipment” to “integrating technology”. That is a major distinction. A modern AV system must work with the building, the network, the people and the organisation’s operational needs.

The biggest winners from this evolution are the end users. Systems are now cleaner, smarter, more scalable and easier to manage. But the complexity behind the scenes has increased. This is why professional design, correct commissioning and ongoing support are more important than ever.

Conclusion: AV Installation Is Now Business Infrastructure

The story of audio visual installation is the story of convergence. Analogue became digital. Standalone systems became networked systems. Hardware control became software control. Projectors and microphones became collaboration platforms. AV moved from the edge of the business to the centre of communication, learning, worship, entertainment and public service.

The most important change has been AV-over-IP and network convergence, because it reshaped how systems are designed, scaled, supported and integrated. But the broader evolution is bigger than one technology. It is the transformation of AV from a room-based trade into a connected infrastructure discipline.

In the 1990s, AV helped people present. Today, AV helps people communicate, collaborate, teach, worship, govern, entertain and make decisions. That is why audio visual installation has become one of the most important technology layers in the modern built environment.