0018F - Dolby E Alignment
v1.0
published
0018F
v1.0
DOLBY®E™ ALIGNMENT
Dolby®E™ / Video Alignment
Dolby®E™ rec. Line Position
Dolby Recommended Values
Frame Alignment (Line Number)
https://qc.ebu.io/items/0018F/versions/1-0-0/
Check
Report
Summary
- EBU QC Id
- 0018F
- Name
- Dolby E Alignment
- Status
- published
- Category
- absolute
- Lead editor
- Rowan Depomerai
- Aliases
- Dolby E frame alignment Dolby alignment Dolby E frame timing Dolby frame timing guard band
- Tags
- audio
Versions
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Details
- Definition
- System shall test alignment between Dolby E frames and video frames. Should check that the Dolby E frames are aligned in accordance with the Dolby specification, leaving the "guard band" free.
- References
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[http://www.dolby.com/us/en/technologies/dolby-e-line-position.pdf "Dolby E recommended line position", Dolby Laboratories, September 2008]
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- Examples
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Dolby E frames are aligned to line 32. (Should be between line 11 and 13.)
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Input parameters
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Output parameters
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Test material
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Remarks
- Remarks
- Dolby E is an audio encoding format which packages up the audio as opaque data packets, which are embedded in AES streams. In order to allow video cuts without damaging the Dolby E data packets, the packets must be correctly aligned to the video frames.
User discussions
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