AV equipment by meeting room size: How to choose ?
A small room for four people and a boardroom for twenty don’t have the same needs in camera, audio or display. Yet many companies equip every room the same way — and end up with a large room where no one can hear, or a small room that was over-equipped and cost too much.
This article matches the equipment to the actual size of each space: the three main room categories, the right equipment for each, and the criteria to decide.
The goal of a well-designed audiovisual meeting room is for the technology to disappear, so every participant — in the room or remote — can see and hear clearly. It all starts with the number of people and the distance between the farthest seat and the display. Everything else follows from that.
In short
- →Small room 2 to 6 people: an all-in-one video bar, camera, mics and speaker built in, plus a single display is enough in most cases.
- →Medium room 6 to 12 people: a higher-performance video bar, often paired with expansion mics, and one or two displays.
- →Large room 12 people and up: separate cameras, ceiling mics, audio processing, distributed speakers and dual displays.
- →Display size is a calculation: the AVIXA standard recommends dividing the distance to the farthest seat by 6, everyday text, or by 4, detailed data, to get the minimum image height.
- →The most common mistake: applying the same recipe to every room, regardless of how it is actually used.
Why room size changes everything
In a small room, participants sit close to the camera and the microphone: a single device captures everyone effortlessly. As the room grows, the distance increases — and that’s where distant voices, tiny faces on screen and echo appear.
Microsoft’s guidance for Teams Rooms sums up the logic: in small spaces, easy-to-deploy all-in-one devices are enough because participants sit close to the audio device; in large spaces, microphones and speakers must be separated and distributed to cover the whole room. So it isn’t first a question of brand or budget, but of geometry.
Small meeting room 2 to 6 people
These spaces — sometimes called huddle rooms — are the most common in today’s offices. Based on definitions used by manufacturers such as Logitech, a huddle room is a space for two to six people.
For this format, an all-in-one video bar is almost always the best answer: a single unit combines camera, microphones and speaker, mounted under the display, with a wide-angle camera that captures the whole table.
Typical equipment
- →An all-in-one video bar with a wide-angle camera
- →A single display
- →A touch controller to start the meeting with one tap
- →A wired network connection
Its advantage: simplicity. Few devices, few cables, few points of failure, fast installation — and it is the most cost-effective format for standardizing several rooms.
Medium meeting room 6 to 12 people
This is the trickiest format to get right, because it sits on the line between “an all-in-one is enough” and “you need to separate the components.” The table is longer, some participants are far from the camera, and audio becomes a real concern.
A higher-performance video bar is often still the base, but it benefits from being paired with expansion mics, table or ceiling, to capture the back of the room. An intelligent-framing camera, which follows the active speaker or reframes the group, noticeably improves the experience for remote participants.
Typical equipment
- →A video bar with automatic framing
- →One or more expansion mics depending on table length
- →One or two displays, one for content, one for faces
- →A touch controller and a wired network connection
The second display isn’t a luxury: it shows the shared document and the faces of remote participants at the same time, which changes the balance of a hybrid meeting.
Large room and boardroom 12 people and up
Once you go past a dozen people, the all-in-one approach reaches its limits: the room is too large for a single device to capture everyone properly. Here, you separate and distribute.
Typical equipment
- →One or more separate cameras, with speaker tracking
- →Ceiling microphones or a microphone array
- →An audio processor, DSP, to manage echo and levels
- →Speakers distributed throughout the room
- →A dual display, or a large-format display
- →A touch controller and careful network management
Microsoft explicitly recommends entrusting the largest and most complex spaces to a partner who specializes in their design and deployment, because integration choices are decisive there.
How to calculate the right display size
This is the most overlooked point — and the easiest to fix. AVIXA, the industry’s professional association, publishes a sizing standard, DISCAS, based on a simple rule: measure the distance between the display and the farthest seat, then divide by 6 for everyday content, text, presentations, or by 4 for detailed content, dense tables, drawings. The result gives the minimum recommended image height.
One important detail: the calculation is based on image height, not the diagonal advertised by manufacturers. For a 16:9 display, the height is about 49% of the diagonal.
The practical consequence: in a large room, the recommended display is often much bigger than the one chosen on instinct.
What an AV integrator recommends
Start from how the room is used, not from the catalogue: a room dedicated to video calls doesn’t have the same needs as one where people analyze spreadsheets.
Beware of false economy — under-equipping a large room guarantees frustrating meetings, while over-equipping a small one means paying for nothing.
Finally, don’t overlook the network: a dedicated wired connection beats Wi-Fi for a room system, because the network is one of the most common causes of bad meetings.
Key takeaways
- →Room size and headcount determine the equipment, before brand or budget.
- →Small room: an all-in-one video bar and one display are almost always enough.
- →Medium room: plan for expansion mics and, ideally, a second display.
- →Large room: separate components, audio processing and distributed speakers — integrator support is recommended.
- →Display size is calculated with the AVIXA rule: distance to the farthest seat ÷ 6, or ÷ 4 for detailed content.
Frequently asked questions
What is the difference between a small, medium and large meeting room?
Generally, a small room is for 2 to 6 people, a medium room for 6 to 12, and a large room for more than 12. The distance between the farthest seat and the display matters just as much, since it drives the choice of camera, audio and display.
Is an all-in-one video bar enough for every room?
No. It is ideal for a small room and often sufficient for a medium room. In a large room it can’t properly cover the audio or the image: you need separate cameras and microphones.
What display size should I choose for a meeting room?
Divide the distance between the display and the farthest seat by 6, everyday text, or by 4, detailed data, to get the minimum image height recommended by the AVIXA standard. The calculation is based on image height, not the diagonal.
Do I need one or two displays?
A single display is fine for small rooms. For regular hybrid meetings, a second display lets you show the shared document and the faces of remote participants at the same time.
Is Wi-Fi enough for a video conferencing room?
For a dedicated room system, a wired, Ethernet, connection is recommended over Wi-Fi, since the network is a frequent cause of poor meetings even with great equipment.
Can I equip a room myself, or do I need an integrator?
A small room with an all-in-one bar can often be installed in-house. The larger the room and the more components involved, the more integration, placement, cabling, audio, network, becomes decisive.
Equipping an audiovisual meeting room well doesn’t start with choosing a brand, but with a simple question: how many people, and how far from the display?
A small room is happy with an all-in-one bar and one display; a medium room benefits from expansion mics and a second display; a large room needs separate components, real audio processing and a display sized to the AVIXA rule.
The mistake to avoid is always the same: one recipe applied everywhere. As soon as rooms multiply or audio becomes a concern, having each space assessed by an integrator helps you avoid the wrong choices.