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AES18-1996 (s2008): AES Recommended practice for digital audio engineering - Format for the user data channel of the AES digital audio interface. (revision of AES18-1992)
Printing Date: 2005-05-12
Publication History: Pub. 1992; Reaffirmed 1996; Reaffirmed 2002; Stabilized 2008-09-22.
Abstract: This Standard describes a method of formatting the user data channels provided within the digital audio serial interface format (AES3). The transmission format is an adaptation of the packet-based high-level data link control (HDLC) communications protocol and provides for the transmission of ancillary data that may or may not be time related to the audio signal. The data rate is constant within a range of +- 12.5 percent of a sampling frequency of 48 kHz. The standard also provides a data priority and management strategy to ensure that adequate capacity is available for downstream data insertion. (45 pages)
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AES - Audio Engineering Society