The Big Bang must have been really loud. And while we've seen artists and animators trying to give us an idea of how that must have looked like, nobody has tackled just how it must have sounded like.

Physicist John Cramer used other measurements to get a handle on the sound, and based on his findings, he made a 100 second sound file which he says produces the sound of the universe being created.

The physicist used measurements of cosmic microwave background radiation levels to get an ultra accurate temperature readings from space. With this, use created a map of cosmic microwaves from what he determined must have sounded like.

The 100 second file covers a time span of 380,000 years so the sound of it has been sped up. Check it out in the video below.

University of Washington, via Red Orbit