Intelligent sound masking
Calm is notthe absence of sound.
Quell adds exactly the sound that makes speech unintelligible — and adjusts it on its own the moment the room gets busier.
… the account number ends in 4 7 1 9, and Monday’s diagnosis was …
You catch every word.
- Speech intelligibility
- 100%
- Masking level
- 32dB
Explainer video
Watch how Quell makes speech unintelligible.
In two minutes: why speech carries furthest in a quiet room, and how Quell takes away its intelligibility without making the room louder.
Flyer
The Quell flyer to leaf through – and as a print version to download.
The problem
Modern offices went quiet. That is exactly the distraction.
At the sea you relax because the wash of the waves blurs the voices around you. You hear that someone is talking — not what they are saying.
In the office that wash is gone. Keyboards are silent, printers live next door, phones no longer ring. What remains is a room where every word from the next desk arrives perfectly sharp.
~4×per second
Micro-pauses in speech — intelligibility hides inside them
#1complaint
Intelligible speech is the most common open-plan complaint
GDPRduty
Overheard conversations are a data-protection risk, not a nuisance
Two costs, every day: focus you lose — and a confidentiality risk you never see.
How it works
Three steps nobody notices.
Quell analyses the speech frequencies in the room, lays a sound bed across exactly that range, and follows the level up as soon as the room gets busier.
- 01
Analyse
Quell continuously measures the level in the speech frequency range. It evaluates readings only and records nothing.
- 02
Mask
The surface under the device gives off a sound that sits exactly where intelligibility lives.
- 03
Adjust
When it gets louder, Quell rises gently. When the room empties, it steps back.
The device
Put it down. Switch it on. Done.
No speaker grille, no ceiling mount, no electrician. Quell couples to the surface it stands on and turns that surface into the source.
- Four soundscapes, from neutral noise to a warm base tone
- Control from the app, one device or a whole floor
- Privacy-Glass for glass partitions, where no piece of furniture will do
Industries
One device, ten reasons.
In an office it is about focus, in a bank branch about discretion, in a practice about confidentiality. The reason differs. The device does not.
- Open-plan office & meeting roomsWin focus back
- Banks & insuranceAdvice nobody overhears
- Practice & group practicePatient data stays at the desk
- PharmacyDiscretion at the counter
- Law & tax advisoryPrivilege is an obligation
- Hospital & clinicDiscretion at the bedside
- Public administrationCitizen conversations stay private
- Hotel & lobbyCalm as part of the brand
- Coworking & flex officeFocus as a selling point
- Customer service & contact centreLess crosstalk between seats
References
Already in use at
Contact
Tell us about your room.
Describe where it is too loud or too open. You get a straight assessment back — not a sales sequence.
What to expect
- An honest read on whether sound masking solves your problem
- A proposal for how many devices your space needs
- A demonstration if you want one — on site or with a loan device