Despite the name, 8D audio is not actually eight-dimensional. It is a post-production technique applied to standard stereo tracks. It works by using:
Listeners often describe 8D music as "flossing the brain" or a "sensory experience". It has gained significant traction for its potential mental health benefits: The History of 8D Music - Universal Production Music music 8d
: Adding artificial space to trick the brain into perceiving distance. Despite the name, 8D audio is not actually eight-dimensional