International organisation for standardisation organisation internationale de normalisation
Audio and Systems: Descriptors and Synchronization (Wed 1230-1300)
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Audio and Systems: Descriptors and Synchronization (Wed 1230-1300)
Descriptor for 3D Audio
Profile and Level (i.e. coder)
Number
of audio channels
Languages (use existing Systems descriptor)
Ancillary services (i.e.
visually impaired
, existing Systems support)
Dialog
enhancement capability
Audio experts will study and make a proposal.
Audio would like to synchronization to a resolution of “lip synch”
FF synchronization –
edit list gives time zero
, access unit gives time scale.
TS synchronization – break-in does not give “time zero”
Audio
will work with Systems
Audio will capture current proposal and solution put it into the Systems output document. This needs carefully written requirements and perhaps also conformance points for the target application scenario. For example:
Input
to TS creator
IP
content definition
Synchronization
output
Systems Amd 6
MPEG-H Systems, CI part 11
Audio action is to consider adding new MPEG-4 profiles and levels to a Systems amendment.
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