Temporal regions of a time-based media program that contain spoken dialog in a language that is dubbed from a primary language are identified automatically. A primary language audio track of the media program is compared with an alternate language audio track. Closely similar regions are assumed not to contain dubbed dialog, while the temporal inverse of the similar regions are candidate regions for containing dubbed speech. The candidate regions are provided to a dub validator to facilitate locating each region to be validated without having to play back or search the entire time-based media program. Corresponding regions of the primary and alternate language tracks that are closely similar and that contain voice activity are candidate regions of forced narrative, and the temporal locations of these regions may be used by a validator to facilitate rapid validation of forced narrative in the program.
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