Quality Control (QC) Vocabulary

QC Vocabulary defines terms that are used in QC with the goals of 1) Ensuring that terms are used consistently, and 2) ensuring that terms are encoded consistently. The page for this topic is here.

This page shows terms for the "TIMED-TEXT" category. Timed Text covers any form of timed text, regardless of its purpose; most commonly closed captions and subtitles.


Version 1.1 DRAFT, December 17, 2019

Term Description Definition V
3D-ISSUES3D Issues3D Issues with Timed Text may include size, positioning, etc.1.0
CORRUPT-FILECorrupt FileTimed Text file will not open or process correctly.1.0
DURATION-LONG-EVENTTiming - Event Duration LongDuration that Timed Text events are visible on-screen is too long.1.0
DURATION-SHORT-EVENTTiming - Event Duration ShortDuration that Timed Text events are visible on-screen is too short.1.0
EXTRA-CONTENTContains Extra ContentExtraneous Timed Text events do not match any audible or on-screen text cues.1.0
FORMATTINGSubtitling Formatting Error - Black Box BackgroundSubtitles contain black background when background should be transparent.1.0
ILLEGAL-CHARACTERSIllegal CharactersTimed Text contains characters that cannot be interpreted or rendered by the platform.1.0
IMSC-RENDERINGViolates IMSC Rendering ModelText violates the IMSC rendering model, either via text rate or extending beyond bounding boxes1.1
INCORRECT-CHARACTER-SETIncorrect Character SetTimed Text character sets are incorrect for a given language.1.0
INCORRECT-COLORColor IncorrectTimed Text color does not meet specification in platform requirements.1.0
INCORRECT-CONTENTContains Incorrect ContentContents of Timed Text file do not match title, description, file name or ID expected for corresponding video file.1.0
INCORRECT-FONTTimed Text font does not meet specification in platform requirements.Font issues including size, styling (Italic, Bold, Underline) and other stylistic text choices that do not match the specification or differs from the style of of the track (e.g., kerning, leading, and shadow). Does not include color (see INCORRECT-COLOR)1.1
INCORRECT-LANGUAGEContains Incorrect LanguageTimed Text language does not match language flag or language indicated by metadata or filename.1.0
INCORRECT-TYPEIncorrect Timed Text TypeTimed Text file does not meet file format specification in platform requirements (e.g., Subtitles delivered when Closed Captions are needed).1.0
LINE-COUNTNumber of Lines Exceeds SpecNumber of lines in Timed Text events exceeds specification in platform requirements.1.0
LINE-LENGTHLine LengthLength of line(s) in Timed Text events exceeds specification in platform requirements.1.0
MISHEARContains MishearTimed Text includes incorrect transcription of spoken dialog.1.0
MISSING-CONTENTMissing ContentTimed Text is missing events where dialog or forced narratives are required.1.0
NOT-PRESENTNot Present When RequiredTimed Text (either burned-in or as separate file) does not exist.1.0
OTHEROtherAny issue not covered by the standard terms and definitions.1.0
POSITIONPositioning ErrorPosition of on-screen text events conflicts with other on-screen text, mattes, etc.1.0
POSITIONTimed text is in an incorrect position.Position of on-screen text events conflicts with other on-screen text, mattes, etc.; or is otherwise incorrect"1.1
PROHIBITED-TEXTImproper text includedText includes language prohibited. For example, text prohibited for legal or regulatory rules; specification; or organizational standards.1.1
REDUNDANT-EVENTSRedundant EventsTimed Text events are redundant with on-screen text or dubbed audio.1.0
SYNC-DRIFT-EARLYSync - Drift EarlyTimed Text framerate is incorrect resulting in a sync drift where events become progressively earlier than their audio cues.1.0
SYNC-DRIFT-LATESync - Drift LateTimed Text framerate is incorrect resulting in a sync drift where events become progressively later than their audio cues.1.0
SYNC-INTERMITTENTSync - IntermittentTimed Text sync with audio/video is inconsistent throughout program (i.e., some scenes are in sync and others are out of sync).1.0
SYNC-OFFSETSync - OffsetTimed Text is consistently out of sync with audio/video for a consistant duration throughout program (e.g., 2-seconds out at all points).1.0
TRANSLATIONContains Unidiomatic TranslationTimed Text translation does not correctly portray dialog of a native speaker.1.0
TYPOSContains TyposTimed Text includes events with misspellings or incorrect punctuation.1.0