SMPTE 272M-2004
- Television - Formatting AES/EBU Audio and Auxiliary Data into Digital Video Ancillary Data Space
- standard by Society of Motion Picture and Television Engineers,
- Category: SMPTE
$75.00
$38.00
This standard defines the mapping of AES digital audio data, AES auxiliary data, and associated control information into the ancillary data space of serial digital video conforming to ANSI/SMPTE 259M. The audio data and auxiliary data are derived from ANSI S4.40, hereafter referred to as AES audio.This standard provides a minimum of two audio channels and a maximum of 16 audio channels based on available ancillary data space in a given format (four channels maximum for composite digital). Audio channels are transmitted in pairs combined, where appropriate, into groups of four. Each group is identified by a unique ancillary data ID. Several modes of operation are defined and letter suffixes are applied to the nomenclature for this standard to facilitate convenient identification of interoperation between equipment with various capabilities. The default form of operation is 48-kHz synchronous audio sampling carrying 20 bits of AES audio data and defined in a manner to ensure reception by all equipment conforming to this standard.
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