Build a realtime closed-caption system in React, AssemblyAI and Ably
Closed-captioning for television systems was first demonstrated in the early 1970s. Realtime closed-captioning was developed later in the early 1980s. Here, stenotype operators who type at speeds of over 225 words per minute provide captions for live television programs, allowing the viewer to see the captions within two to three seconds of the words being spoken was developed later in the early 1980s.