Acoustic panels reduce echo and the reverberant noise build-up in a call centre - the 'cocktail-party' din created when many agents speak at once - making calls clearer and the room less tiring. Ceiling rafts and wall panels absorb this reflected sound so speech does not pile up across the floor. However, absorption alone does not give speech privacy or stop noise reaching a neighbouring area: the full fix combines absorb (panels), block (screens) and cover (sound masking).
Why call centres get so noisy
A call centre packs many people into one open room, and everyone is talking at the same time. Sound bounces off hard floors, glazing and plasterboard and keeps arriving at each desk as reflected energy, so the general level - the reverberant build-up - rises across the whole floor. As it gets louder, agents instinctively raise their voices to be heard, which pushes the level higher still. The result is the tiring cocktail-party background that blurs speech on live calls.
That background does more than annoy. Constant effort to hear over the din causes vocal strain and listening fatigue across a shift, and it degrades the audio the caller hears, so speech clarity - the thing a contact centre is measured on - suffers. Reducing the reverberant energy is therefore both a wellbeing and a call-quality question, not only a comfort one.
Do acoustic panels work in a call centre?
Yes - within limits. Acoustic wood panels absorb reflected sound, which shortens the reverberation time and lowers the reverberant build-up, so individual voices carry less far and calls sound clearer. What they do not do is soundproof: absorption reduces echo inside the room but does not block sound passing to a room next door, which is a matter of mass and construction. See absorption versus soundproofing for that distinction.
What to treat: ceilings first, then walls
The ceiling is usually the largest uninterrupted surface in an open call-centre floor, so hanging acoustic rafts or baffles there is often the efficient first move - they present absorption to sound arriving from every desk below. Wall panels then tackle reflections at head height and hard glazed elevations. Our approach here mirrors general open-plan office treatment; the choice between rafts and baffles depends on the ceiling height and the services above it.
Absorb, block and cover: the honest full answer
Absorption is only one third of the job. Acousticians describe open-plan control as absorb, block and cover: panels *absorb* the reflected build-up; desk and floor screens *block* the direct line of sound between agents; and low-level sound masking *covers* residual speech so it is less intelligible at the next desk. Panels alone reduce the overall din and listener fatigue, but they do not create speech privacy by themselves - expecting them to would over-promise.
How much do you need, and who should specify it?
There is no single panel count. More absorption shortens the reverberation time - by Sabine's relationship, RT = 0.161 x V / A, a bigger room or less absorption gives a longer, noisier decay - so the right quantity depends on the room's volume, its surfaces and how full it is. A sensible route is to have the space modelled and to read how many panels you need. Any published αw for our panels is stated against its test report, never assumed.
Will heavy absorption make the room feel dead?
In a call centre that is rarely the risk: the aim is to pull down the reverberant build-up, and these rooms generally benefit from generous, even absorption. The practical point of diminishing return is simple - once the build-up and echo are under control, extra panels add little, and the remaining gains come from screens and masking rather than more absorption. Unlike a music practice room, tonal 'liveness' is not the goal here, so broad coverage over the desks matters more than balance.
Frequently asked questions
Do acoustic panels give call agents speech privacy?
Not on their own. Panels absorb reflected sound and lower the overall noise level, which reduces fatigue and improves clarity, but privacy between adjacent agents also needs screens to block the direct sound path and often low-level sound masking to cover residual speech. Absorption is one part of the combined absorb, block and cover approach.
Will acoustic panels stop noise reaching the office next door?
No. Absorptive panels reduce echo and build-up inside the call-centre room; they do not soundproof. Stopping sound passing to an adjacent room is about mass and construction - walls, doors and seals - governed by different standards, not by absorptive wall or ceiling panels.
Are ceiling rafts or wall panels better for a call centre?
Usually the ceiling is treated first because it is typically the largest uninterrupted surface and faces every desk, so rafts or baffles there are efficient. Wall panels then handle head-height reflections and hard glazing. Most floors use a combination, and the balance depends on the ceiling height and the services above.
Do call-centre acoustic panels need a fire rating?
Sometimes — it depends on where they are fixed and the building's fire strategy, so check with the responsible person or a fire engineer. As a guide, untreated timber typically reaches around Euroclass D under BS EN 13501-1, while a higher class such as B generally requires a fire-retardant treatment evidenced by a test report. Any class we quote is stated against its report.