The AAF Dolby Atmos Extension Windows Driver is a software component that enables Windows-based systems to support Dolby Atmos audio technology. Dolby Atmos is an advanced sound technology that provides an immersive, 3D audio experience by allowing sounds to be placed and moved in a three-dimensional space, offering a more dynamic and lifelike listening experience.

The AAF Dolby Atmos Extension (AAF stands for Audio Application Framework) is a driver or software extension that integrates with your system's audio stack to facilitate Dolby Atmos playback on Windows, typically for home theater systems, soundbars, or headphones that support Dolby Atmos.