Answers
Why are my video captions out of sync?
Check caption timing against the spoken audio in the preview and exported file. Separate wrong words, a late phrase and timing that drifts over the video.
By Sulan Zhang, co-founder of Vyra · Updated 2026-11-10
- Compare
- Spoken audio, visible captions and exported file
- Describe
- The phrase and when it appears
To investigate captions that are out of sync, play the video with sound and compare the exact spoken phrase with the text on screen. Check both the Vyra preview and the latest exported file. Wrong words, one late caption and timing that drifts through the video need different descriptions.
Do this before changing the whole caption track. If one phrase appears late, replacing every caption can make a small correction harder to check.
Describe the timing problem
| What you notice | What to record |
|---|---|
| The words are wrong | The phrase that was spoken and the correct spelling |
| One phrase appears early or late | The phrase, its spoken time and when the caption appears |
| The gap grows as the video plays | An example near the beginning and another near the end |
| Timing changed after an edit | Which trim, move or speed change you made before noticing it |
| Preview looks right but export does not | The timestamp in the latest saved file and the matching preview |
The point is to give a reproducible example. These observations alone do not prove what caused the mismatch.
Check one section first
- Choose a phrase that is easy to hear. Write down its words and approximate time in the current edit.
- Play that section at normal speed with sound. Check the phrase's first word and when its caption leaves the screen.
- Compare a later phrase to see whether the difference stays similar or grows.
- If the preview is wrong, ask for a narrow correction or adjust the relevant caption on the timeline. Check the result before continuing.
- Export after the correction and compare the saved file. If the preview and file disagree, contact support with the same two examples.
A correction brief to try
Replace the phrase and timing with your own observation. This is a request to check, rather than a promise that every timing problem can be repaired by one prompt.
The caption "three things changed" appears after I have finished saying it around 0:12. Align that caption with the spoken phrase. Keep my audio, clip order and caption style unchanged. Let me review this section before changing the rest.
Keep word corrections separate from timing corrections. For the ordinary workflow, see captions on iPhone or the caption tutorial.
FAQ
Does correcting a spelling mistake fix timing?
It corrects the text. Check when that text appears separately. Give both the phrase and its time if the timing also needs attention.
Should I generate every caption again?
Start by identifying the scope of the problem. A single late phrase and a whole track that drifts are different cases. Preserve your existing styling while you investigate.
Why should I compare the beginning and ending?
It helps show whether the difference is similar throughout or changes as the video plays. Two short examples give support a clearer description than "the captions are off."
Can changing playback speed affect what I need to check?
After a speed change, review the spoken audio and captions together in the edited section. Do not assume the old timing still matches the result.
How do I check captions that differ in the saved video?
Confirm you opened the export made after your latest correction. If the difference remains, keep the project and report matching timestamps from the preview and saved file.
Sources
The iPhone caption guide describes caption review and correction. Vyra support explains how to report a problem. Checked November 10, 2026.
Related
- /how-to/add-captions-to-videos-on-iphone
- /tutorials/add-captions
- /answers/how-accurate-is-ai-transcription-for-captions
- /prompts/captions
- /answers/why-cant-i-export-video-on-iphone