Open-Plan Office Noise: How to Concentrate When You Can't Control the Room

Open-plan office noise has a specific quality that makes it harder to ignore than, say, traffic: most of it is speech. Your brain processes language whether you ask it to or not, so a colleague's phone call two desks away pulls at your working memory even when you have no interest in the conversation. That is why "just tune it out" rarely works as advice.

The good news: you don't need control over the room to protect your concentration. You need control over the sound layer between the room and your ears. Below you'll find what the evidence suggests, which types of sound suit which situations, and how to build a routine that survives a loud Tuesday afternoon.

Why open-plan office noise disrupts you more than other sounds

Not all noise is equal. A steady hum from the ventilation is easy to adapt to. Intelligible speech is not. Cognitive psychologists call this the irrelevant speech effect: background talk interferes with tasks that rely on holding and ordering information in your head, such as writing, reading carefully or working through code. A meta-analysis by Vasilev et al. (2018) found that background speech reliably impairs performance on memory-based tasks, and that the effect is strongest when the speech is understandable.

This explains a pattern you may recognise. You can work through the murmur of a full café abroad, where the conversations blur into texture, yet a single clear conversation in your own language across the office derails a paragraph you've rewritten three times. The problem isn't loudness. It's meaning. Your language system keeps parsing the words, and that parsing competes for the exact mental resources you need for deep work.

Two practical conclusions follow. First, lowering the volume alone won't help much if speech stays intelligible; a quiet but clear conversation can be more disruptive than louder, blurred chatter. Second, the goal of any counter-strategy is not silence. It's making nearby speech unintelligible to your brain.

Masking beats blocking: how to make speech unintelligible

There are two ways to deal with office noise at the ear: block it or mask it. Blocking means physically stopping sound, with earplugs or the passive seal of over-ear headphones. Masking means adding a continuous sound that covers the frequencies of speech, so the words around you stop resolving into language.

Why noise-cancelling headphones only solve half the problem

Active noise cancellation is excellent at removing low, steady sounds: air conditioning, server fans, the rumble of a busy floor. It is much weaker against voices, because speech is irregular and sits in mid frequencies that cancellation handles poorly. Many people put on noise-cancelling headphones, hear the room go eerily quiet, and then notice that the one thing left is the conversation next to them, now more distinct than before. Headphones are the foundation, not the solution. What you play through them matters more.

What makes a good masking sound

A masking sound needs three properties. It should be continuous, without gaps that let speech through. It should be spectrally broad, covering the range of human voices rather than sitting above or below it. And it should be undemanding: it must not pull attention itself. Steady noise colours such as pink or brown noise meet these criteria, which is why they're a common starting point. If you want to understand the differences between noise colours in depth, the comparison in what the evidence says about brown noise applies to office masking as much as to attention.

That third property is where most office playlists fail. Songs with lyrics reintroduce the exact problem you're trying to escape: language. Familiar favourites invite singing along in your head; unfamiliar tracks invite evaluation. Both pull attention. Research on music and cognitive work reflects this: vocals and high musical complexity tend to cost performance on demanding tasks, while steady instrumental sound fares better. There's a fuller picture in what studies actually show about music and focus.

Choosing your sound layer: noise, music or functional music

Once you've decided to mask rather than merely block, you have three broad options, each with a trade-off.

Plain noise

Pink or brown noise covers speech well and is completely free of distraction. Its weakness is that many people find hours of unbroken noise fatiguing or bleak, and stop using it after a few days. It works best for short, intense stretches, or as a base layer when the room is at its worst.

Regular instrumental music

Film scores, ambient albums and classical playlists are more pleasant to live with, but they weren't written for masking. Dynamic swells, dramatic pauses and sudden changes let office speech punch through, and each gap between tracks is a window for the room to reclaim your attention. You also end up managing playlists, which is its own small distraction.

Functional music

Functional music is composed specifically to support an activity rather than to be listened to for its own sake: continuous, without lyrics, with controlled dynamics that keep the masking layer intact while staying pleasant over long sessions. If the term is new to you, this explainer on what functional music is and what it isn't draws the boundaries. One example in this space is Sotuno, a functional-music app from Cologne launching in 2027. Its tracks are composed, played and mixed by established artists who work at the intersection of science and music; software only arranges, extends and mixes them into seamless sessions. That means no lyrics, no gaps between tracks and no playlists to manage.

A practical routine for loud days

Sound is the biggest lever, but it works best inside a small routine. Here is a setup many open-plan workers settle into.

Set the volume just above the room, not high

The masking sound only needs to be slightly louder than the speech reaching your ears. Turning it up further doesn't mask better; it adds listening fatigue and, over a full day, puts your hearing at risk. A useful check: if a colleague speaks to you from a metre away, you should still notice that someone is talking, even if you can't make out the words.

Pair sound with time blocks

An open-plan office interrupts you in two ways: through your ears and through people approaching your desk. Sound handles the first; visible time blocks handle the second. Headphones on plus a defined 25- or 50-minute block signals "later, please" more politely than any sign. If you want to structure this, timing focus sessions with sound walks through how session length and audio can reinforce each other. A clear audio start also lowers the threshold for beginning at all, which matters most on days when the room is already loud before you've written a line.

Match the sound to the task

Demanding language work, such as reading dense material or careful writing, tolerates the least stimulation: lean towards plain noise or very sparse functional music. Routine work, such as answering email or formatting slides, tolerates, and often benefits from, more musical energy. Apps built for this purpose usually make that choice explicit; Sotuno, for instance, offers distinct modes for different states, including a Focus mode, plus an ADHD mode that restructures sessions with more drive, shorter blocks with a clear start and no sudden changes, along with an intensity dial to adjust how much push you want. If noise sensitivity or starting tasks is a daily struggle for you beyond ordinary office annoyance, that's worth discussing with a professional; an app is one part of a routine, not a substitute for professional care.

Protect at least one low-noise block per day

Even good masking is work for your auditory system. Where you can, schedule your hardest task for the room's quietest window, often the first hour, and save masking for the loud middle of the day. If your office offers booths or quiet rooms, treat them as scarce deep-work capital rather than a place for calls.

When headphones aren't enough: changing what you can

Sound at the ear is the lever you fully control, but a few environmental moves compound it. Ask about desk placement: a seat facing away from walkways, with a wall or shelf behind you, cuts both acoustic and visual interruptions. Raise recurring noise patterns with your team lead as a shared problem, not a complaint; many offices agree on call-free zones or quiet hours once someone names the issue. And if your organisation allows hybrid work, reserve your most speech-sensitive tasks for home days and batch collaborative work for office days.

Finally, be honest about what a poor acoustic environment costs you, without dramatising it. Concentration in noise is not a character trait you lack; it's a resource the environment either drains or protects. Research on background speech makes clear that this is a general property of human cognition, not a personal weakness. Building a deliberate sound layer, whether that's simple brown noise, a well-chosen instrumental album or a purpose-built option like Sotuno, is one of the few interventions that requires no one's permission and can begin today.

You can't quiet an open-plan office, but you can stop its speech from reaching the part of your mind that does the work. Block low rumble with decent headphones, mask voices with continuous, lyric-free sound at a modest volume, match the sound to the task, and pair it with visible time blocks. None of these steps needs a manager's sign-off, and together they turn a room you can't control into a workspace you largely can.