I just cleared up my own confusion between subtitles and closed captioning. Before, I thought "subtitles" referred strictly to translations of foreign language

I just cleared up my own confusion between subtitles and closed captioning. Before, I thought "subtitles" referred strictly to translations of foreign language dialog, and that the feature for hard of hearing was called closed captioning. But in fact SDH = Subtitles for the Deaf and Hard of Hearing, so it is in fact a form of subtitle. In short, subtitles are for when sound is avavilable but hard to understand, while captioning is when sound is not available (such as the viewer is completely deaf). This is the definition from HTML5.[0] Of course, one could simply mute the TV showing subtitles and then I guess they'd become captions! [0]https://en.wikipedia.org/wiki/Closed_captioning https://en.wikipedia.org/wiki/Closed_captioning