The device
A housing without a grille, about the size of a shallow bowl. Underneath it, the surface it stands on. Everything else is software.
Soundscapes
From neutral masking noise to natural ambiences — or your own material.
The signature blend. Tuned to speech frequencies, easy to live with for hours.
Classic noise profiles, from bright and neutral to deep and soft.
Natural ambiences for reception, waiting areas and lobbies.
Bring WAV or MP3 onto the device through the app or over USB.
Every room sounds different. Tune the balance to hard surfaces, carpet or glass — right in the app.
Hz
On request Quell appears on your computer as a drive. Copy sound files in, rename them, reorder them — no app required.
Privacy-Glass
Glass is the weakest point of every confidential room. Quell makes it the strongest.
A glass partition vibrates along with the speech in the room — which is why it carries speech to the space next door, and exactly what contact and laser microphones exploit.
In Privacy-Glass mode Quell measures the pane on the device itself, finds its resonances, and places the masking on exactly those frequencies — through the glass.
Every glass partition resonates differently. Quell analyses the glass in front of it, not an average.
The energy goes into the exact resonances that carry speech next door.
The effect lives in the pane — not in the meeting room.
The app
Quell Control Center finds your devices over Bluetooth, secures each with a PIN, and controls all of it — offline included.
Fine steps, or jump straight to a preset.
Change the sound and shape it to the room across eight bands.
Switch the automation on or off and set how far it may move.
Install new device software straight over Bluetooth.
A wizard walks you through single device, mesh and Privacy-Glass.
The app speaks German, English, French and Spanish.
Free to download
The app includes a demo mode — you can explore all of it before a device ever reaches your desk.
For teams and floors
One device works alone. Many devices work together.
Up to 20 devices form their own radio network. One coordinates, all the others keep running independently. Set it up once — the floor stays in step.
For larger estates the web console shows every site, level and state in real time — and rolls firmware or new soundscapes out to single devices or whole meshes.
Bluetooth control and the adaptive loop always work — network or not. The cloud is an option for fleets, never a requirement for operation.
Tell us where it is too open. You get an honest read on whether masking solves your problem, and if it does not, we will say so.
Talk to us