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How to fix slow subtitle translation or translate hard-coded subtitles in videos?
Translation speed depends on the subtitle type: Subtitle Type Description Translation Support --------- Hard-coded Subtitles Burned into the video frame Cannot
Translation speed depends on the subtitle type:
| Subtitle Type | Description | Translation Support |
|---|---|---|
| Hard-coded Subtitles | Burned into the video frame | Cannot be extracted or translated directly |
| Soft Subtitles | Embedded in the video container | Line-by-line translation, speed depends on network |
| External Subtitles (SRT, VTT) | Separate subtitle files | Supports batch pre-translation for instant bilingual subtitles |
For videos with hard-coded or no subtitles, use DualPiP's ASR Live Captions (v1.7+) to auto-generate AI subtitles via speech recognition, then translate them with 30+ AI providers. For slow translation, switch to batch pre-translation mode or use a faster AI engine like Groq or DeepSeek.