A: ampere
ABC: (1) American Broadcasting Company. (Website: www.abc.go.com). (2) Australian Broadcasting Corporation. (Website: www.abc.net.au). (3) Automatic beam control
ABR: Available bit rate
ABS: Academy of Broadcast Science (China)
ABSOC: Advanced Broadcast Systems of Canada (Canada)
ABTT: Association of British Theatre Technicians (UK). (Website: www.abtt.org.uk)
ABU: Asian-Pacific Broadcasting Union. Part of the WBU
AC: Alternating current
AC-3: Audio Code 3
ACE: (1) Advanced conversion equipment. (2) American Cinema Editors (USA). (Website: www.ace-filmeditors.org/home.htm)
ACTS: Advanced communications technology and services
ACVL: Association of Cinema and Video Laboratories Inc. (USA) (Website:
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