SDH
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“SDH” is an American term the DVD industry introduced. It is an acronym for “Subtitles for the deaf and hard-of-hearing”, and refers to regular subtitles in the original language where important non-dialog audio has been added, as well as speaker … Read More

Closed captions
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The “CC in a TV” symbol Jack Foley created, while senior graphic designer at Boston public broadcaster WGBH that invented captioning for television, is public domain so that anyone who captions TV programs can use it. Closed captioning is the … Read More