An ATSC Technology Group Report is a document that incorporates consensus on information regarding ATSC Standards and related industry activities.
This document provides a tutorial on the MPD and IMSC1 timelines, as well as recommendations on an initial “launch” constraint set. The purpose of the recommendations in this document is to provide interoperability of the ATSC 3.0 IMSC1 Component. Broadcasters and others have noticed inconsistencies with early IMSC1 encoding and decoding implementations. This is a proposed solution to this issue. The goal is to provide conformant and consistent encoding and decoding, including a conformance test plan. The target audience is engineers. It is assumed that the reader is knowledgeable about MPEG DASH, ISO BMFF, and IMSC1 in general.
This document provides both general information and recommendations for the early implementation of the AC-4 audio system used with the ATSC 3.0 Digital Television System. It describes:
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