Acoustics in the office: Using simulation to combat noise, reverberation, and concentration killers
When you no longer understand your own words
There are moments in the office that are simply... unpleasant, acoustically speaking. You're concentrating on a phone call with a customer, formulating a particularly clever response – and suddenly your own words come back to you. Not philosophically, not reflectively, but physically. With a slight delay. And a slight echo. And a slight nervous breakdown.
“Hello?”
“Hello... hello... hello...”
By now, you know for sure: the problem isn't on the other end of the line. It's in the room.
The room speaks. Unfortunately.
Modern offices look fantastic. Lots of glass, lots of concrete, clean lines, design awards included. Acoustically, however, they often deliver an impressive live performance of “Echo & the Bunnymen.” Every wall cheerfully reflects sound, the ceiling joins in, the floor too – and the end result is a concert of overlapping sound waves that no one ordered.
The nasty thing about it is that you almost get used to it. Almost. Until you realize that after half a day of talking on the phone, you sound like a poorly adjusted loudspeaker. And you feel that way too.
Poor room acoustics are no big deal. But they are like a constantly dripping faucet: you can ignore them. But you shouldn't.
Why reverberation is not a character trait
If a room has too much reverberation, it's not because of its personality, but because of its physics. Sound spreads out, hits surfaces, and is reflected. When many reflections hit our ears at the same time, the reverberation time is extended. The brain bravely tries to bring order to this acoustic chaos—but at some point, it gives up.
The result is not only annoying, but also measurably poorer speech intelligibility. And yes, measurably more stress.
Now, of course, one could say, “Then let's just hang a few panels somewhere.” That's like simply placing a hot water bottle somewhere when you have back pain. Maybe it helps. Maybe it doesn't. Maybe you're just warming the wrong spot.
Simulation – or: First we ask physics
So before you start flying blind acoustically, you can digitally recreate the room. A room acoustic simulation calculates exactly what happens when someone speaks. At mouth level. At typical speech frequency. With realistic material properties of walls, floors, ceilings, and furniture.
The computer listens in, so to speak.
It shows where sound pressure builds up, which frequencies are particularly prone to reverberation, and where you should avoid standing if you want to be understood. Instead of “it just echoes,” you get curves, level curves, and clear statements.
And best of all, you can play through different variants. Without a drill.
What really works (and what just looks good)
The simulation allows you to test what happens when you only optimize the ceiling acoustically. Or the walls as well. Or when you place a measure specifically between the speaker and the listener. Often, just a few decibels of improvement are enough to dramatically change the subjective impression. Ten decibels less means roughly halving the perceived volume.
That's the difference between “I can hardly hear you” and “Ah, this makes work fun.”
What's interesting is that more material doesn't automatically mean better acoustics. Sometimes, clever placement is more effective than doubling the surface area. The room is not a sponge, but a physical system with its own characteristics. And sometimes with a sense of humor.
When technology suddenly becomes quiet
Good room acoustics go unnoticed. And that is precisely the goal. You speak—and you are understood. You listen—and you don't have to guess. You hang up—and you're not exhausted.
Simulation makes acoustics predictable. Investments are made in a targeted manner rather than on a guesswork basis. And the meeting room is transformed from an acoustic adventure park into a professional communication zone.
Because if you can no longer hear your own words, it's not a personal failure. It's simply a physical problem. And physics can be calculated.
Or, to put it more simply:
You don't have to put up with noise. You can model it. And then make it quieter.
We would be happy to hear from you if we can help you in this regard. Give us a call and we will be happy to advise you on the subject of acoustics without obligation.
Yours Stefan Merkle
