Mondo Knows Facts
SDH captions also describe the sounds
Labels in brackets tell a deaf viewer about music, laughter or a door slamming Subtitles for the deaf and hard of hearing add speaker names and sound effects to the dialogue, and mark music with notes or a description. The extra text shares the same safe area, so it must be placed without covering faces. Broadcasters and streaming services increasingly offer it as a separate track. It sits in Mondo's movies & tv collection, one of 200 facts that each trace back to the reference below.
Where this comes from
Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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More facts like this
Ceefax carried the first regular TV subtitlesThe BBC slipped subtitle pages into spare lines of the broadcast signal from 1979Closed captions rode in an invisible lineAmerican captions were coded into line 21 of the vertical blanking intervalBraille turned a military code into readingLouis Braille adapted a raised dot system invented for night battlefield messagesElevator buttons feature raised tactile numbers and Braille textTactile markings and audio signals assist visually impaired lift passengersPedestrian crossing boxes feature spinning tactile cones underneathRotating underside cones notify deaf-blind pedestrians when crossing signals turn greenBlister dots on paving warn of an edge aheadRaised domes underfoot signal a kerb, platform edge or crossing point
๐ฌ Movies & TVfact 200 of 200
โ โ to keep reading, or swipe
Tags: captions, accessibility, subtitles
SDH captions also describe the sounds: the short answers
- Where does this come from, and can I check it?
- Labels in brackets tell a deaf viewer about music, laughter or a door slamming. The figure is taken from BFI, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a movies & tv fact?
- Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.