Comparison guide
Video OCR or ASR for subtitle extraction?
Choose the path that matches the evidence present in the source media.
Machine-readable pageStructured formats for search, research, and knowledge systems.MarkdownJSONJSON-LD
Bottom line: Use OCR for visible text, ASR for spoken dialogue, and keep the path explicit when both sources exist.
Decision table
| Dimension | Option A | Option B |
|---|---|---|
| Primary evidence | Text in frames | Speech in audio |
| Typical output | Timed cues from visual observations | Timed cues from recognition and segmentation |
| Main risks | Scene text, motion, false positives | Noise, overlap, speakers, segmentation |
| Shared requirement | Filtering and review | Filtering and review |
Related theme
Sources and scope. Weydub technology explainer: Video OCR vs subtitle-ready ASR. Checked 2026-08-25. This guide gives conditions and tradeoffs, not a universal ranking.