The spectrogram is generated based on the simulation of a sound representing the first 760,000 years of evolution of the universe.
The initial sound is being simulated in Mathematica.
https://www.wolfram.com/customer-stories/mathematica-simulates-the-sound-of-the-big-bang.html
https://i.imgur.com/t54uGds.jpg
The sound was generated based on data from the ESA's Planck Mission analysis of the CMB analyzes the temperature variations of the cosmic microwave background into angular frequency components or multiples.
https://rarible.com/token/0x60f80121c31a0d46b5279700f9df786054aa5ee5:712513:0x091768787bf5ec32703b25b6a65a3c55697369db
https://www.wolfram.com/customer-stories/mathematica-simulates-the-sound-of-the-big-bang.html
https://i.imgur.com/t54uGds.jpg
The sound was generated based on data from the ESA's Planck Mission analysis of the CMB analyzes the temperature variations of the cosmic microwave background into angular frequency components or multiples.
https://rarible.com/token/0x60f80121c31a0d46b5279700f9df786054aa5ee5:712513:0x091768787bf5ec32703b25b6a65a3c55697369db