Dolby AC-4 Stereo Sound

ZapperBox M1 will support Dolby® AC-4 as required by the ATSC 3.0 standards. AC-4 is the new audio standard that has been approved for new DVB and ATSC standards. It offers improvements like support for multiple audio tracks, loudness management, better audio/video frame alignment and a 50% reduction in bit rate compared to Dolby® Digital Plus. Dolby® AC-4 is extensible and allows for new features to be added to Dolby® AC-4 while maintaining compatibility with older decoders. Dolby® is a registered trademark of Dolby Laboratories.