Glossary of abbreviations, words and expressions

Abbreviations

AC-3 – multichannel digital audio system developed by the US company Dolby®.

ADC – analogue-to-digital converter (device converting an analogue voltage into a binary number).

AF – adaptation field (data field used to adapt the PES to transport packet length).

API – application programming interface (programming interface of middleware for its compatible applications; sometimes used to designate the middleware itself).

ASK – amplitude shift keying (digital amplitude modulation with two states).

ATSC – Advanced Television System Commitee (US digital terrestrial TV system supporting HDTV and using 8-VSB modulation).

AU – access unit (MPEG coded representation of a presentation unit: ...

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