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0010X - Loudness
published
0010X v1.0
Item image
LOUDNESS
Loudness Metadata & 0010B
Crosscheck Values
Matches
Crosscheck Mismatch
https://qc.ebu.io/items/0010X/versions/1-0-0/
Check
Report
Summary
EBU QC Id
0010X
Name
Loudness
Status
published
Category
absolute
Lead editor
Paul ROBINSON
Aliases
Dialnorm mismatch
Tags
audio
Versions
Version Status Edition date Saved by Note
Details
Definition
System shall verify that the measured programme loudness matches the value indicated in the DialNorm metadata which is taken from the wrapper and any additional audio tracks (E.g. Dolby digital, Dolby E) and compared with the measured programme loudness.
References

  • EBU QC Test Item 00010B

  • [http://tech.ebu.ch/docs/r/r128.pdf EBU R 128]

  • [http://tech.ebu.ch/docs/tech/tech3341.pdf EBU Tech 3341]

  • [http://tech.ebu.ch/docs/tech/tech3342.pdf EBU Tech 3342]

  • [http://tech.ebu.ch/docs/tech/tech3343.pdf EBU Tech 3343]

  • [http://tech.ebu.ch/docs/tech/tech3344.pdf EBU Tech 3344]

  • ITU-R BS.1770-3

  • ATSC A/85

Examples

  • Loudness crosscheck mismatch found at 00:12:01:20.
    Measured loudness = -23 LUFS, Wrapper loudness metadata = -23 LUFS, Bitstream loudness metadata = -18 LUFS.

Input parameters
Name Description
Output parameters
Name Description
Test material
Title Version Download
Remarks
Remarks
The UK DPP suggests a tolerence of 4 LU.
User discussions
Title Author Last update