The American National Standards Institute (ANSI) has approved four SCTE audio standards.
ANSI/SCTE 242-1 2017, "Next Generation Audio Coding Constraints for Cable Systems: Part 1 - Introduction and Common Constraints," is part of a suite documenting coding constraints of Next Generation Audio (NGA) systems for cable TV. It is intended to be used in conjunction with the specific audio technologies described in subsequent Parts of this standard.
ANSI/SCTE 242-2 2017, "Next Generation Audio Coding Constraints for Cable Systems: Part 2 - AC-4 Audio Coding Constraints," is part two of a three-part standard that specifies the coding constraints of Next Generation Audio (NGA) system for cable TV. In conjunction with SCTE 242-1 2017, the document defines the coding constraints on AC-4 for cable TV.
ANSI/SCTE 243-1 2017, "Next Generation Audio Carriage Constraints for Cable Systems: Part 1 - Common Transport Signaling," is part of a suite documenting carriage constraints of Next Generation Audio (NGA) codecs in MPEG-2 transport systems and in MPEG-DASH. It is intended to be used in conjunction with the specific audio technologies described in subsequent Parts of the standard. The common descriptors necessary to signal NGA in MPEG-2 transport systems are defined in ISO/IEC 13818 1 and ETSI EN 300 468, and their usage is described in this Part of the standard. Additional codec-specific descriptors are defined in subsequent Parts (which defines codec specific carriage constraints).
ANSI/SCTE 243-2 2017, "Next Generation Audio Carriage Constraints for Cable Systems: Part 2 - AC-4 Audio Carriage Constraints," is part of a three-part standard that specifies carriage constraints of Next Generation Audio (NGA) codecs in MPEG-2 transport systems and in MPEG-DASH. In conjunction with SCTE 243-1 2017, the document defines the carriage of AC-4 audio in MPEG-2 transport systems and MPEG-DASH.
The standards are available at http://www.scte.org/SCTE/Standards/Download/SCTE/Standards/Download_SCTE_Standards.aspx.
