The text displayed on screen during a video on the social media platform provides a transcription or translation of the audio content. For example, viewers unable to hear the audio due to environmental factors or a hearing impairment can understand the dialogue and other important sounds by reading the synchronized text.
Accessibility features enhance the viewing experience for a wider audience, leading to increased engagement and comprehension. Historically, these features were primarily developed for broadcast television, but their adaptation to online video platforms reflects a broader commitment to inclusivity and user-friendly content delivery.