Atmos technology works by combining conventional channel-based audio (like 5.1 surround) with "audio objects".
A helicopter, for instance, isn't mixed into a "surround channel"; it’s mixed as an object with metadata that tells the system its exact location, allowing it to move across the room, even over your head. dolby atmos
Dolby Atmos is an that enables sound designers to place individual sounds—"objects"—anywhere in a three-dimensional space, rather than just assigning them to specific speaker channels. Unlike traditional 5.1 or 7.1 surround sound, which dictates that a sound comes from the "rear left" speaker, Atmos allows a sound to be treated as an object that can move freely around, behind, and even above you. isn't mixed into a "surround channel"
