Now yes, space is a virtual vacuum. However, sound does exist in the form of electromagnetic vibrations that pulsate in similar wavelengths.
What NASA did was design special instruments that could record these electromagnetic vibrations, and transferred them into sounds that our ears could hear.
What you’re about hear is actual sound in space, nothing has been added. It’s a beautiful,
The sound of the sun was considered by most ancient religions as the most sacred sound of the universe. It is a sound that cannot be heard by the human ear, because the human ear only hears between 20-20,000 Hertz. The sound of the sun is much lower in frequency and also much higher in frequency than we can hear.