A/52, Digital Audio Compression (AC-3) (E-AC-3) StandardApproved: 25 January 2018

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.