This document specifies the coded representation of audio information and the decoding process, as well as information on the encoding process. The coded representation specified is suitable for use in digital audio transmission and storage applications, and may convey from 1 to 5 full-bandwidth audio channels, along with a low-frequency enhancement channel. A wide range of encoded bit-rates is supported by this standard. Typical applications of digital audio compression include satellite or terrestrial audio broadcasting, delivery of audio over metallic or optical cables, and storage of audio on magnetic, optical, semiconductor, or other storage media. Included as an annex, “Enhanced AC-3 Bit Stream Syntax” specifies syntax that offers additional coding tools and features.
Download A/52:2018, “Digital Audio Compression (AC-3) (E-AC-3) Standard”, approved 25 January 2018.
Subscribe to The Standard, our monthly newsletter, to stay up-to-date with ATSC news and events around the world.
1776 K Street NW 8th Floor
The Advanced Television Systems Committee, Inc., is an international, non-profit organization developing voluntary standards and recommended practices for digital terrestrial broadcasting. ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC also develops digital terrestrial broadcasting implementation strategies and supports educational activities on ATSC standards.