Audio description is an accessibility service used by blind or visually impaired individuals. Often accompanying movies, television shows, and other visual art forms, the service provides spoken descriptions of visual content, allowing people with vision loss the ability to access information that sighted people obtain visually. At live theatrical events, audio description provides spoken descriptions of scenes, characters, props, and other visual elements that those with vision loss may otherwise find inaccessible.In this paper we present a method for deploying prerecorded audio description in a live musical theater environment. This method uses a reference recording and an online time warping algorithm to align audio description with live performances, including a process for handling unexpected interruptions. A software implementation that is integrated into an existing theatrical workflow is also described. This system is used in two evaluation experiments that show the method successfully aligns multiple recordings of works of musical theater in order to automatically trigger pre-recorded, descriptive audio in real time.
CCS CONCEPTS• Human-centered computing → Accessibility technologies; • Applied computing → Performing arts; Sound and music computing.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.