PRISM MPI2-25 and MPX2-25 Media Analysis Platform User Manual
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Table 16:
Association between SDID values and the first audio channel
pair of an audio program
Audio Channel Pair
SDID
No association
01h
Channel pair 1/2
02h
Channel pair 3/4
03h
Channel pair 5/6
04h
Channel pair 7/8
05h
Channel pair 9/10
06h
Channel pair 11/12
07h
Channel pair 13/14
08h
Channel pair 15/16
09h
Annex E
Assigning SDID Values (Normative)
When multiple audio programs are carried by, or associated with, a single
video signal, the SDID value is used to identify the VANC data packets
carrying the audio metadata for each of the audio programs.
The audio channels making up an audio program are assigned to
consecutively numbered or consecutively arranged audio channel pairs.
The VANC packets carrying the audio metadata for a specific audio
program are identified by setting the SDID values of these packets to the
value associated with the lowest numbered audio channel pair of the group
of audio channel pairs carrying the complete audio program, as shown in
Table 16.
For example, if there is a six-channel program carried in the first three
audio channel pairs and a stereo program carried by the fourth audio
channel pair, then the VANC packets carrying the metadata for the six-
channel program would have their SDID value set to 02h because the
program starts in audio channel pair 1/2. The VANC packets carrying the
metadata for the stereo program would have their SDID value set to 05h
because the stereo program starts in audio channel pair 7/8.
Dolby Program.
Use the drop-down menu to select the Dolby program number to
monitor.
The Program number in the top right of the Dolby Status app border is the
same as the Dolby Program number in the Dolby Status Settings. Select the
arrow and select the number of the program to monitor.
