Dolby Atmos is a premium and immersive audio format that works by adding height to the otherwise-flat soundstage of both cinema and home cinema audio setups. But that's not all. As well as adding height to the audio mix, Dolby Atmos introduces the concept of object-based audio – the idea that elements of a film's soundtrack (like a plane passing overhead) can exist as their own individual item in the audio, rather than as part of a channel mix, allowing them to be placed and moved around a scene in a way that more naturally mimics real life.