Brown noise

The deep, even rumble of classic brown noise, a darker version with almost no hiss and a slow swell in long waves. Describe it and Morphic generates it clean, from a bed under a voiceover to a fade in from silence.

  • Classic brown noise, an extra deep version or slow swelling waves, exactly as asked
  • A low rumble shaped for your sleep video, study stream or focus track
  • Comes as clean, isolated audio you download and lay under your edit at whatever level suits it
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Fine amber sand pouring and rippling across a dune under warm side light against a cold dark ground, grains lifting into the air

Brown noise sounds for games, animation, and video edits

Classic brown noise

The standard deep, even rumble, a dependable bed for focus, sleep content or a voiceover that needs something under it.

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Extra deep brown noise

Darker still, with almost no hiss on top, for sleep tracks and slow content where any brightness distracts.

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Slow swell

Brown noise that rises and falls in long waves, for breathing exercises, meditation videos and calm scenes.

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Airflow blend

A deep rumble with a breathy whoosh on top, for scenes that suggest air moving through a vent or a large space.

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Fade in from silence

Brown noise rising out of nothing to a full rumble, an easy opener for a video, a focus session or a scene change.

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Grainy brown noise

A deep rumble with a fine dry grain on top, for a textured bed that feels more physical and less electronic.

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Generate a brown noise sound from a prompt

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Ways to use a brown noise sound effect

Drop into a deep hum for a dramatic pause

Cut the score and let brown noise rise under a key moment, so the scene feels heavy and still, in a film, a trailer or a story-driven game.

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Drop into a deep hum for a dramatic pause

Fill the gap under a voiceover without music

A low brown noise bed keeps a narration from sounding thin and empty, in a podcast, an explainer video or a documentary.

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Fill the gap under a voiceover without music

Set a calm focus or sleep mood

An extra deep rumble tells listeners it is time to settle in, for study streams, sleep videos and meditation apps.

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Set a calm focus or sleep mood

Hint at an engine room or air system off screen

A brown noise rumble with airflow on top suggests ventilation or a ship hull behind the walls, in sci-fi games, animation and audio drama.

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Hint at an engine room or air system off screen

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よくある質問

What is a brown noise sound effect?
Brown noise is random noise with most of its energy in the low frequencies, so it sounds like a deep, even rumble with very little hiss. It is used as a steady bed for focus, sleep and relaxation content, and as a low layer under video and audio where silence would feel empty.
Where can I get brown noise sounds for a video?
Generate them from a prompt. Describing the depth and texture you want takes less time than digging through a stock library, and you get the exact noise your project needs. Every sound on this page was made from the prompt printed beside it, so you can start from one and adjust it.
How do I make a custom brown noise sound effect?
Describe how deep it should be, how much hiss you want and whether it stays steady, then generate it. A prompt like "very deep brown noise, a dark warm low rumble with almost no hiss on top" gives Morphic enough to work with, and you can adjust the wording until it fits.
What is the difference between brown, white and green noise?
White noise spreads its energy evenly, so it sounds bright and hissy. Brown noise drops off steeply toward the high end, so it sounds deep and rumbling, and green noise sits in the middle of the range, fuller than white but less bassy than brown. Pick brown when you want the deepest bed with the least hiss.
Can I use these brown noise sounds commercially?
Yes, audio generated on paid plans can be used commercially. See our terms for full licensing details. Because each sound is generated for you, you also avoid the clip turning up in someone else's video.
Why does my brown noise not sit right in the edit?
Usually it is too loud in the low end and muddies the voice or vanishes on phone speakers. Bring the level down well under dialogue, and if it disappears on small speakers, use a version with a little more texture on top, such as the airflow or grainy takes, so it stays audible.