Start from what you need it for - sleep, focus, calm, reading, meditation or covering noise - then shape it layer by layer. Everything is generated live in your browser, so there is nothing to download, nothing to sign up for and nothing leaves this device.
0 layers active - synthesised in your browser, nothing streamed or stored.
Recognised words map straight to layers below.
Continuous beds and textures.
Intermittent calls that layer over any bed.
Raise one or more layers to build a mix and generate a prompt.
A steady, low-contrast bed. Sudden peaks are what pull people back out of light sleep, so this mix leans on continuous texture and keeps intermittent creature calls out of the way.
Broadband texture with a quiet room underneath. The point is predictability: nothing in this mix asks for your attention, which makes it easier to keep attention on the task.
Slow, rolling movement. Water layers give a gentle sense of motion without a beat, which suits unwinding, stretching or a long exhale between tasks.
A soft, bookish room tone with rain outside. Enough texture to mask a noisy household, sparse enough that it never competes with the sentence you are on.
Wide, slow and open. A reverberant space with very little event density, so there is room to notice your own breath rather than the soundtrack.
Continuous broadband energy sits across the same range as speech and traffic, so intruding sounds stand out less. It does not cancel anything - it raises the floor so the peaks are less noticeable.
The same engine powers the Sound Blender, where you can browse layers by category, and the Sound Library explains where each sound comes from. To experiment with noise colours, tones and stereo placement, try the SonicSenses Lab. Keep the master level comfortable and see our listening safety guidance.