Add subtitles to your AI drama: on-screen, burned in, or as an SRT file
Writing lines so they are spoken: write dialogue in the storyboard.
Who has it
Subtitles are switched on for projects of accounts that have bought credits or a plan at least once; an order that was fully refunded does not count. If you do not see a Subtitles switch next to Music in the editor, your account is not in that group yet.
Subtitles on one clip
- Open an episode in the editor and select a segment that has a finished video.
- Next to Music, turn Subtitles on. The hint says it plainly: On: show subtitles over the video and download the subtitled version. Off: play and download as-is.
- The first time, you will see Making subtitles while every finished segment of the episode is listened to. It takes a moment; you can keep working.
- Play the clip: each line appears as it is spoken.
- Press Download. The subtitled version is prepared on request — it will download automatically when ready (keep this page open).
The switch is remembered for your account, so the next episode you open starts with subtitles on.
Subtitles on the whole episode
- Press Export episode once every segment is done.
- In the export dialog, tick Add subtitles: it transcribes the whole episode once and aligns it to the script and adds a minute or two.
- When the export is ready, open Exports. With subtitles on, the export offers Download with subtitles and Download SRT.
The subtitled download follows the Music switch: with music on you get the version with the episode’s background music, with it off the version without. The SRT file is plain text with times, ready to upload to YouTube or any player.
Exported without ticking it? Turn the subtitles switch on in Exports: the exports listed there are subtitled the same way.
Where the words come from
The text is always your script’s lines, not a transcription. SceneMixer recognises the speech only to find when each line is said. That is why a character’s invented name, a place in another language or an unusual spelling comes out exactly as you wrote it.
- A line that was not spoken is left out of the subtitles, and the editor tells you: Line 3 was not spoken. See when the video says or skips a line.
- Something said that is not in the script — a stray word — is not subtitled.
- A clip with no dialogue shows No dialogue audio in this clip and simply has no subtitles.
When you change the lines afterwards
If you edit a segment’s lines after its subtitles were made, the editor says Subtitles still match the script at generation time and offers Realign to new lines. That re-times the new text against the same recording; it costs nothing and does not count toward the daily limit.
For a whole-episode export, if segments were regenerated or deleted after you exported, its lines no longer match: export the episode again and tick Add subtitles.
What the subtitles look like
White bold text with a soft shadow, no grey box, at most two lines, placed low in the frame and sized to the video: a vertical 9:16 clip gets a wider line than a landscape one, and in landscape the subtitles sit above the corner badge. Chinese, Japanese and Korean use their own typefaces; punctuation follows subtitle conventions. The editor overlay and the burned-in download use the same layout.
Cost and limits
Subtitles cost no credits: listening to a clip, making the subtitled download and exporting the SRT are all free. To keep it that way there is a daily limit per account on how many segments and episodes are subtitled and how many subtitled downloads are made; ordinary use of a series does not come near it. Realign to new lines does not count.
Messages you may see
| Message | What to do |
|---|---|
| Subtitles failed · turn off and on to retry | Turn the switch off and on again. |
| The subtitled version is taking longer than usual | Click Download again in a few minutes. |
| Couldn’t make the subtitled version this time. Download the version without subtitles? | Download without, or try again later. |
| The storyboard changed after this export, so its lines no longer match | Export the episode again with Add subtitles ticked. |
| No dialogue audio in this clip | Nothing; a clip without lines has no subtitles. |
FAQ
Does SceneMixer add subtitles automatically?
Yes, once you turn the Subtitles switch on in the editor. Every finished segment is listened to and each script line is timed to the voice.
Can I download the video with subtitles burned in?
Yes. With Subtitles on, Download gives the subtitled version, for a clip or for a whole exported episode.
Can I get an SRT file?
Yes, for a whole episode: tick Add subtitles when you export, then use Download SRT in Exports.
Do subtitles cost credits?
No. They are free, with a daily limit per account.
Why don't I see the Subtitles switch?
Subtitles are available on accounts that have bought credits or a plan at least once.
Are the subtitles a transcription?
No. The text is your script's lines; speech recognition is only used for the timing. Names come out spelled as you wrote them.
What if the video skipped a line?
That line is left out of the subtitles and the editor notes which line was not spoken. Regenerate the segment if you need the line said.
I changed the lines. Do I pay again?
No. Use Realign to new lines; it is free and does not count toward the daily limit.
Can I have subtitles in a different language from the dialogue?
The subtitles follow the dialogue's own script. For a second language, make a second-language version of the drama; see make a second-language version.
Caption your next episode
Turn on Subtitles in the editor, or tick Add subtitles when you export, and download it ready to post.
Updated October 25, 2026