Closed captioning is a text display that provides a written version of the spoken dialogue and sounds in video content. It is designed to assist individuals who are deaf or hard of hearing, allowing them to understand the audio elements of movies, television shows, and online videos. Closed captions often include descriptions of sound effects and music cues, enhancing the viewing experience. Unlike subtitles, which typically translate spoken language, closed captions convey all audio information. They can be turned on or off by the viewer, making them a flexible option for accessibility. Many platforms, such as YouTube and Netflix, offer closed captioning to ensure inclusivity for all audiences.