If you spend a lot of time on YouTube, you may have seen something called 8D Audio showing up in the Up Next column or in your recommended videos. 8D? As in eight-dimensional audio? Yes, it’s a thing.

This post is part of Hard Refresh, a soothing weekly column where we try to cleanse your brain of whatever terrible thing you just witnessed on Twitter. You've heard of 3D, and even 4D, but prepare ...

The buzz surrounding 8D audio has become ubiquitous across streaming playlists and viral video channels, but what exactly sets this format apart from the ordinary two‑channel mix we hear daily? At its ...