Dolby Digital Plus - Physical Transport For Professional Devices & Applications

Physical Transport For Professional Devices & Applications

SMPTE 340-2008 - Format for Non-PCM Audio and Data in AES3—ATSC A/52B Digital Audio Compression Standard for AC-3 and Enhanced AC-3 Data Types. This standard specifies data type specific format requirements for both Dolby Digital (AC-3) and Dolby Digital Plus (E-AC-3) data bursts carried within an AES3 interface according to SMPTE 337M. The combination of SMPTE 340-2008 and 337M allow the Dolby Digital Plus bitstream to be stored and transported within professional production, contribution and distribution workflows prior to emission to consumers.

For broadcast (emission) to consumers, the Dolby Digital Plus bitstream is packetized and multiplexed (with video) into an MPEG-2 Transport Stream. In ATSC systems, the specification for carrying Dolby Digital Plus is described in ATSC A/53 Part 3 & Part 6. In DVB systems, the specification for carrying Dolby Digital Plus is described in ETSI TS 101 154 and ETSI EN 300 468

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