- EBU QC Id
- 0248B
- Name
- Missing Captions/Subtitles
- Status
- published
- Category
- objective
- Lead editor
- Eyal Lavi
- Aliases
- missing captions missing SDH missing subtitles for deaf and hard-of-hearing missing caption sections
- Tags
- audio access service
Version | Status | Edition date | Saved by | Note |
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- Definition
- Used as a Check, the system shall detect periods where speech is occurring in the audio but no captions/subtitles are displayed. Optionally the system may report the total number of seconds where the audio contained speech with no captions/subtitles displayed.
Used as Report, the system shall report the time intervals where speech is occurring in the audio but no captions/subtitles are displayed. The system will also report the total number of seconds where the audio contained speech with no captions/subtitles displayed. - References
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- Examples
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Input:
"ServiceChannelAllocation" = 4a 1, 2
"CaptionsReference" = "foo.xml"
"MissingCaptionTotalDurationThreshold" = 120 seconds
Output:
"CheckResult" = false
"MissingCaptionSegment" from 00:01:42:08 to 00:02:42:08
"MissingCaptionSegment" from 00:50:15:01 to 00:51:16:23
"MissingCaptionTotalDuration" = 121 secondsRemark: Used as a Check. Scenario: subtitles/captions are missing for more than the defined threshold of 2 minutes of dialogue .
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Input:
"ServiceChannelAllocation" = 4a 1, 2
"CaptionsReference" = "foo.xml"
Output:
"MissingCaptionSegment" from 00:01:42:08 to 00:02:42:08
"MissingCaptionSegment" from 00:50:15:01 to 00:51:16:23
"MissingCaptionTotalDuration" = 121 secondsRemark: Used as a Report.
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- Remarks
- This item only tests for the absence of captions/subtitles when the audio contains speech. It does not identify whether the speech is captioned/subtitled late or early, or missing completely.
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