Cosmic Expansion
Background (Radiation) Music Generator
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Aug 3rd • Amazon River added

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Meditation Bell

Cooling Down

The Big Bang is the singularity our cosmos has emerged from, a point of infinite density that gave birth to space and time. Since, our universe has been continuously expanding for 13.7 billions years! As it grows, the universe cools down, now reaching an average temperature of 2.73 Kelvin (-270°C or -455°F). Your turn to relax and cool down, by the sound of this generator...

This custom generator was suggested by Stéphane, the owner of myNoise. Read the side column below to learn how to create your own custom generator.


Each slider controls a particular audio stream; adjust sliders to taste and mood. The animation button turns the soundscape into an slowly evolving texture. Use this feature if you intend to listen to the generator over a long period of time!

Testimonials - write yours here

Click the blue hearts to load their associated settings

  My kind of interesting.

  As someone with misophonia and sensitive to certain background noises from other people close to me, this has been an amazing help during this time of quarantine. Amazing functionality and features. Thank you!

  I'm currently writing a sci-fi novel and this one is great to have on in the background. I tune it to G and set the sliders animating, and off into uncharted space we go!

  Absolutely love it! Thanks for making it, and well done! Have this playing in my vocal booth in between jobs. If you gotta be in an enclosed space, why NOT have an epic, cosmic soundtrack playing? The 'view' is good from here!

  This goes great with Sleeping Dragon.

Current Slider Settings

Save in URL
Save as Cookie > Load
Clone as Minified Player
Order as an Audio file    


OddEven Surprise!

Tape Speed Control

G #A #BC #D #EF #
Speed ÷2Speed x2Reset

Animation Control

Start A B C

If you ♥ Cosmic Expansion try...


Use a laptop or desktop computer, as you will be asked to use keyboard shortcuts.

Browse the site for slider contents: open any generator on myNoise, and select the sliders you want to use in your custom set by 'zeroing' all others, then hit [c] to collect all active sliders into a hidden stack. Move to a next generator and repeat the process until you have accumulated a total of 10 sliders. Now hit [shift+c] to render your custom generator. At any point in the process, press [x+c] to clear the hidden stack.