Working with Dolby Metadata - AWS Elemental Live

This is version 2.18 of the AWS Elemental Live documentation. This is the latest version. For prior versions, see the Previous Versions section of AWS Elemental Live and AWS Elemental Statmux Documentation.

Working with Dolby Metadata

Audio encoded with a Dolby codec always includes Dolby metadata, as per the ATSC A/52 2012 standard. This Dolby metadata is used by AWS Elemental Live in two ways when the stream is encoded with Dolby codec:

  • It is used to manipulate the audio just before encoding the output.

  • It is included in the metadata for the output stream.

This document describes how to set up an AWS Elemental Live profile or event to use Dolby metadata in these ways.

Dolby metadata is supported in the output only when the audio codec for the output is Dolby Digital (also known as AC3) or Dolby Digital Plus (also known as Enhanced AC3).