SMPTE ST 2020-3:2014

SMPTE ST 2020-3:2014

Vertical Ancillary Data Mapping of Audio Metadata - Method B

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Details

This standard defines one of two methods of mapping the serial audio metadata stream related to encoded
audio bitstreams into the 10-bit vertical ancillary (VANC) data space of a standard definition or high definition
digital component television signal in accordance with SMPTE 291M. This VANC mapping is intended for use
as a means of transparently conveying the audio metadata elements through the video transport in a way
which allows the metadata stream reconstituted by a VANC receiver to be effectively identical to that which
arrived at the VANC transmitter.
An associated standard SMPTE 2020-1 defines the DID and SDID values assigned to the VANC packets
carrying this metadata, the location where packets are to be located, the basic structure of the metadata, and
the asynchronous serial data transport which is used to convey the metadata from device to device (when not
embedded in a video signal).
Note: An associated standard SMPTE 2020-2 defines an alternate method of mapping the metadata into ancillary data
packets.

Additional Info

Author Society of Motion Picture and Television Engineers
Published by SMPTE
Document type Standard
Theme /subgroups/31880
Number of pages 5
Replace SMPTE 2020-3-2008
Keyword SMPTE ST 2020-3:2014