Get the lines
Upload the video and press Transcribe, or add lines by hand. Each line shows its start and end in seconds and its text.
AI dubbingComing soon
Change what is said, line by line, in the voice you choose.
Transcribe a video or type the lines yourself, correct each one, pick a voice and what happens to the original sound, and get a re-voiced MP4 with subtitles if you want them.
Open the workspaceThis tool is in private testing and is not open to all accounts yet. The page describes how it will work; the workspace shows which tools your account can use today.
How it works
TrendRemix AI dubbing replaces or adds speech in an existing video from lines you control. Each line has a start time, an end time and text, taken from a transcription or typed in, in any language the voice can read. Every line is spoken in the studio voice you choose and placed at its start time, sped up by at most 1.6 times if it would overrun. The original sound can be replaced, kept quietly underneath, or left alone for a subtitle-only job, and subtitles can be burned in, delivered as SRT, or both. A separate option translates clips of up to one minute into a chosen voice with lip-sync.
From input to finished result.
Correct, rewrite or translate
Fix misheard words, adjust timings and split long lines. For a new language, type the translated text into each line; lines are spoken exactly as written.
Choose sound and subtitles, then create
Pick the voice, whether it replaces or sits over the original, and the subtitle style. Check the quote and create; the result offers an MP4 and, if chosen, an SRT download.
What you can do
Line-level control
Edit the words and timing of every line, add or remove lines, and re-voice only what you approved.
Three ways to treat the original sound
Replace it, keep it at low volume under the new voice, or leave it untouched and add subtitles only.
Subtitles burned in or as a file
Burn subtitles into the picture in a font that covers Chinese, Japanese and Korean, export an SRT, or both, in three sizes at the top or bottom.
Translate with a chosen voice
For clips up to one minute and 18 MB, the speech is transcribed, translated, read in a studio voice, fitted to the clip length and lip-synced.
Who it is for
- Fixing a voice-over
- Correct a misspoken price or product name without recording the whole video again.
- Voicing silent footage
- Type lines for a product clip that has no speech and place each one where it should be heard.
- Language versions in your own wording
- Enter a translation you or your translator approved, so every product term is the one you chose.
- Subtitles for sound-off viewing
- Keep the original sound and burn in subtitles for viewers watching on mute.
At a glance
| Video | MP4, MOV or WebM, up to 200 MB and 10 minutes |
|---|---|
| Lines | Up to 200, each up to 600 characters |
| Timing | Each line starts at its start time; sped up by at most 1.6× |
| Original sound | Replace, mix underneath or keep |
| Subtitles | Burned in, SRT or both; small, medium or large; top or bottom |
| Chosen-voice translation | Videos up to 1 minute and 18 MB, with lip-sync |
| Cost | Credits by amount of text, plus burned-in subtitles; shown before you submit |
Before you download
- Line dubbing does not move the speaker's lips, so use it where the speaker is off screen or the mouth is not prominent.
- Listen for lines that sound rushed; a line near the 1.6× limit needs shorter text or a longer slot.
- Check that burned-in subtitles do not cover product text or prices in the frame.
- Have translated lines reviewed by a fluent speaker before publishing.
- Make sure you have the rights to the video and to change what its speakers appear to say.
Questions and answers
Does dubbing translate automatically?
Line dubbing reads exactly the text you put in each line, in whatever language you write it. For automatic translation, use translate with a chosen voice for clips up to a minute, or the video translator, which keeps the speaker's voice.
Will the lips match the new audio?
Not with line dubbing, which changes the sound only. Translate with a chosen voice and the video translator both re-sync the mouth.
What if a line is too long for its slot?
It is sped up to fit, up to 1.6 times. Beyond that it runs past its end time, so shorten the text or leave a longer gap before the next line.
Can I add subtitles without a new voice?
Yes. Keep the original sound and choose burned-in subtitles, an SRT file or both. No voice is needed for a subtitle-only job.
Which voices can I use?
Voices from the studio voice list, which starts with a default female and a default male voice. This tool does not create a copy of your own voice.
Bring your product. Leave with something new.
Every result lands in your asset library, ready for the next tool.