This Recommendation specifies a serial multichannel sound digital interface to be used in broadcasting studios. The specification includes the data organization and electrical characteristics for the serial digital transmission of linearly represented digital data at a common sampling frequency over coaxial or fibre-optic lines.
ITU-R BS.1873 FRENCH-2010 Referenced Document
ITU-R BS.646 Source Encoding for Digital Sound Signals in Broadcasting Studios - Section 10C - Audio-Frequency Characteristics of Sound-Broadcasting Signals
ITU-R BS.647 A digital audio interface for broadcasting studios*， 2011-03-01 Update
ITU-R BS.775 Multichannel stereophonic sound system with and without accompanying picture*， 2012-08-01 Update