Captioning is the process of displaying text over videos to provide audible content in a visual format. The captions describe the audio portion of a program including non-speech elements in a text format. Note that captions are not the same as subtitles. Subtitles assume an audience can hear the audio, but need the dialogue provided in text form as well. Captioning assumes an audience cannot hear the audio and needs a text description of what they would otherwise be hearing.