Subtitle Burn-In
In short: Subtitle burn-in is the process of permanently embedding text overlays into video frames, often used alongside lip sync when creating localized content with hardcoded captions.
About Subtitle Burn-In
Subtitle burn-in permanently renders subtitle text into the video pixels, as opposed to soft subtitles that exist as a separate data stream. In lip sync production workflows, burn-in subtitles are sometimes used in conjunction with dubbed audio and lip sync to maximize accessibility.
For example, a video might be lip-synced to Spanish audio while also having Spanish subtitles burned in for hearing-impaired viewers. The burn-in process must be coordinated with the lip sync output to ensure that subtitle positioning does not overlap with the modified mouth region and that timing aligns with the lip-synced audio.
How Subtitle Burn-In Connects to Lip Sync
Subtitle Burn-In relates to several other concepts in the AI lip sync pipeline: Localization , and Post-Production .
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