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Captions convey dialogue and relevant non-speech sound, such as a doorbell, music or speaker identification. Subtitles often focus on dialogue or translation. The terms are used inconsistently across apps, so inspect the actual track and choose the version that provides the information the viewer needs.
Explore guide ↗The text may be open captions that are already part of the video picture. Closed captions are a separate selectable presentation, while open captions cannot normally be disabled by the viewer. Programme graphics, translations and signs inside the scene can also look like captions.
Explore guide ↗SDH commonly means subtitles for Deaf and hard-of-hearing viewers. Such tracks usually include dialogue plus useful sound cues and speaker information. Exact coverage varies, so the label is a helpful starting point rather than proof that every important sound has been represented accurately.
Explore guide ↗A forced subtitle presentation may translate foreign-language dialogue, signs or other essential text while leaving the main dialogue uncaptioned. It serves a different purpose from a complete subtitle or caption track. Availability and automatic selection depend on the programme, language choices and player implementation.
Explore guide ↗A subtitle file must match the programme’s edit and timing. Different introductions, cuts, frame-rate conversions or releases can make a seemingly correct file drift or start at the wrong moment. Use authorised sources and a supported player rather than assuming a title match guarantees the right subtitle version.
Explore guide ↗WebVTT is a timed-text format used with web media. It can carry cues and presentation information that a compatible player displays alongside video. Seeing a VTT file does not guarantee a particular language, translation quality or accessibility completeness; those depend on the actual caption content.
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