Use Add Subtitles on iPhone, iPad, or Android to turn recorded speech into editable captions. Both mobile platforms support subtitle language choices and editing. The Web dashboard can import SRT or VTT text as a script; that is a different task from adding styled captions to a video.
Choose the spoken language and the subtitle language
- Open a saved video and choose Add Subtitles from its tools.
- Select the language actually spoken in the recording.
- Choose the desired subtitle language. Use the same language for captions or a different available language for translation.
- Review any access or plan prompt, then start processing and keep the workflow open until it finishes.
Do not select the interface language merely because it is familiar. A mismatch with the spoken audio can produce poor text. Use a short, clearly spoken test before processing an important long recording.
Correct the words before styling
Watch the preview and read every segment, especially names, numbers, technical terms, and sentence breaks. Edit the transcript where needed. For translated captions, check meaning as well as spelling; automatic translation can change the intent of a line.
Do not assume subtitles are correct because processing completed. Listen to the original audio while reviewing the relevant caption, and compare the beginning, middle, and end of the video.
Adjust timing with the waveform and timeline
The current mobile subtitle editors provide timeline controls alongside the preview. On Android, the source-audio waveform, playhead, and segment cards help locate a spoken phrase. Scrub to the word, adjust segment timing, and use split or merge when a caption contains too much text or ends at an awkward point. Undo and redo let you compare edits.
Review a few seconds before and after each timing change. Captions should appear with the spoken phrase and remain readable without covering the following sentence. Word emphasis depends on available timing information, so check the rendered result rather than assuming every word lands perfectly.
Preview a style and active-word emphasis
Start with a style preset, then adjust the controls available in your mobile editor: font, size, outline, shadow, background, alignment, position, maximum lines, motion, and active-word emphasis. Android now includes six style presets and quick controls for motion, the active word, line count, and position.
Use the actual video preview to check contrast over both bright and dark frames. Keep captions away from the speaker's mouth and the edges likely to be covered by another app's playback controls. A style that fits one short line may overflow a longer translated caption.
Export and inspect the finished video
- Play a complete preview after changing text, timing, or style.
- Save or export through the mobile editor and wait for it to finish.
- Open the exported file and check several moments, including long captions and active-word effects.
- Keep the original recording until you are satisfied with the output.
If text or timing is wrong, return to the editor and correct it before sharing. If export fails, retain the original, check free device space, and follow the error shown by the app.
Choose the right tool for the next step
Use mobile video editing for the rest of the take. To bring an existing subtitle file into a readable script on Web, follow file import and preview. For recordings on another device, check local and cloud recording copies.
Return to the Teleprompter Automatic Help Center or compare features by platform.