Curated Sound Mix

Blue Noise and River for Morning Focus

A bright hiss with a river running under it, for the first work block of the day.

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This mix layers

Open in mixer

If this becomes the mix you want every night, the Slo app keeps it and starts it again in a tap, on iOS, Android and Mac.

Blue noise for studying in the morning

Some mornings the room is quiet and you still can't get going, and heavy sound makes that worse. Blue noise is a hiss weighted toward the highest pitches, thinner and brighter than white noise, and the brightness is the point here. It reaches into the pitch of voices and clattery sounds, so a conversation down the hall gets harder to follow, although nothing takes speech away. The river adds moving water over it and keeps the whole thing from feeling clinical. Blue noise leads and the river sits under it, and you can press play without making an account.

Good for one block of work, not the whole day

Pick the thing you're doing first, start the sound, and leave the sliders alone until the block is over. Bright hiss wears on people faster than softer sound does, so an hour or two is a fair amount to ask of it. It won't wake you up the way daylight and a walk will, and it is no substitute for the sleep you didn't get. If your ears start to feel tired, switch to the river on its own, or to a softer pairing, instead of pushing through it.

If it sounds sharp, take the brightness down

Start with your device volume lower than feels right, especially on earbuds, because the brightest part of this mix is the part that stings. If blue noise still feels sharp after a few minutes, move it down to around 40% and leave the river alone. If you want less water and more steadiness, do the opposite and bring the river down. Listen through a full stretch of the river before you judge, since the water rises and falls by itself. The setting you want is the one you stop hearing.

Explore the sounds in this mix

Listen to each layer on its own: Blue Noise and River. Or start from scratch in the free online sound mixer.

Frequently asked questions

How is blue noise different from white noise?

Blue noise puts more of its hiss at the highest pitches, so it sounds thinner and crisper than white noise, and it tires some people out faster.

Can I use it late at night?

You can, though most people find this one too bright at that hour. A pink or brown pairing is easier to sit with once the day is over.

Can I keep just the river?

Yes. Turn blue noise off in the mixer and the river keeps playing on its own.