Sound Blender

Sound Blender: how this works, in words

What it does

Runs several ambient sound layers at once and mixes them into a single composite soundscape that plays continuously.

What it accepts

No files and no uploads. Every layer - rain, wind, crickets, a stream and the rest - is synthesised by your browser's audio engine from the library of layers on this page. Presets and share links only encode which layers are on and how loud each one is.

What you control

Add or remove layers, a volume fader per layer, mute and solo per layer (keyboard shortcuts M and S), a master level, fades, and saving a mix to this device.

What changes

Audio only, no visual output. Raising a fader brings that element forward in the mix, muting removes it, and solo leaves only the selected layer audible. The layer list and each layer's state are shown as text.

What it illustrates

How a believable environment is built from separate simple elements: broadband texture for rain or wind, sparse repeated events for birds or crickets, and low movement for water or distant traffic.

What it does not claim

It is a mixing tool, not a field recording and not a treatment. The layers are synthesised approximations of natural sounds, and no mix here is claimed to cure or improve a health condition.

Keyboard and screen readers

Each layer is a labelled group with native range inputs and toggle buttons that expose pressed state, so a mix can be built, muted, soloed and saved entirely from the keyboard. Layer names, levels and mute or solo state are all exposed as text rather than only as fader positions.