Audio description is an accessibility feature that describes the visual elements sighted people take for granted, such as settings, backgrounds, costumes, and actions. The feature assists people who are blind, vision impaired, or have print, learning, and physical disabilities enjoy television, film and live performances by describing what is happening as it happens.
There are other benefits of audio description, such as how it can help people with autism, by explaining the emotions of characters they see on screen. As with Closed Captions for people who are deaf or hearing impaired, it can be turned on or off as needed. It is also relatively inexpensive to deliver and, in fact, is already integrated into many of the programs that are imported from overseas.