For creators with a finished translated voiceover

Lip sync a dubbed video. Let the voice lead.

Lip sync a dubbed video after the translation and voiceover are approved. Match one visible speaker to your finished target-language recording.

Published November 3, 2026

Try my video and finished dub Is this right for my clip?

You confirm the selected passage and credit quote before generation.

Lip sync a dubbed video with your finished voiceover

Your MP4 + your recording → one lip-synced passage

1 Choose the scene
2 Add finished dub
3 Review language version

Translation and voice recording come first. Upload the approved dub and its matching scene.

1 · VIDEO

2 · AUDIO

No files ready? Try an example

3 · Dubbed passage Adjust after adding your files

Scene start (seconds)Finished dub start (seconds)Dubbed passage (seconds)

Use a duration that exists in both inputs. A longer translation needs a shorter recording or more usable footage.

5 seconds60 seconds max

Final selection: 9s, aligned to 25 fps (40 ms). Replacement audio replaces the original soundtrack. No looping or padded frames.

Your files stay private. Download links expire. Input guide

From the actual generated video

Listen in French. Inspect the same moment.

Play the result, listen to its recording and compare the same moment.

A real supplied-French-audio example · 5 seconds

Real MuseTalk output

Supplied recording Listen to the voice that guides the lips.

Watch for: Check speech onsets, pauses and the moving mouth around the microphone.

Portrait stock footage paired with a separate French archival recording in a real MuseTalk run. The recording is not a translation of this source scene.

Loads the inputs. Generation requires your confirmation.

Run conditions & source credits

540 × 960 portrait · 25 fps · continuous video excerpt 0–5s · one visible adult speaker with headphones and microphone · natural French replacement audio · credit-funded QA run; 5 credits captured · no MuseTalk.app product watermark

Footage: ANTONI SHKRABA production on Pexels, video 8135208 (https://www.pexels.com/video/8135208/), Pexels License (https://www.pexels.com/license/); continuous 0–5s excerpt, resized to 540 × 960 at 25 fps with source audio removed. Audio: Multilingual LibriSpeech French, by Vineel Pratap, Qiantong Xu, Anuroop Sriram, Gabriel Synnaeve and Ronan Collobert (2020), via OpenSLR SLR94 (https://www.openslr.org/94/), CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), derived from LibriVox; archive member 11822_11650_000162, first 5s, converted to mono 16kHz PCM WAV. The source member hash was recorded; the full archive checksum was not independently verified. Altered-media lip-sync demonstration using separate video and narration; no subject, speaker, creator or dataset endorsement. Provider endpoint: fal-ai/musetalk; exact upstream model revision undisclosed.

Same moment. Two frames.

Look closer at 2.4 seconds.

Original source at 2.4 seconds: portrait speaker beside a microphone — Original footage

Actual MuseTalk output at 2.4 seconds: portrait speaker beside a microphone — Generated mouth movement

Compare identical timestamps. Play the video to judge mouth movement; stills alone do not establish lip-sync quality.

Before you keep the result

Review language and timing when you lip sync a dubbed video.

Meaning and pronunciation

Confirm the intended words, names and pronunciation with a fluent listener. The supplied recording is not corrected automatically.

Timing and visual continuity

Check visible speech, silence and head turns. Review gestures and microphone occlusion as well as the lips.

Need help with a delivered job? Use result troubleshooting or contact support with its job reference.

The right starting point

Finish the voiceover before changing the lips.

Before you lip sync a dubbed video, approve the wording and voice. Keep each stage of localization clear.

Editorial collage connecting an approved voice recording to a presenter’s mouth and different speech shapes. — **Your dub is approved. Now match the visible speech.**AI-generated scene illustration

01 / Before lip sync

Approve the translated wording.

Confirm names, meaning and terminology outside this tool. Mouth matching cannot correct a mistranslation.

Finalize the message

02 / Before lip sync

Finish the target-language recording.

Lock the voice and pace. Rerecord a sentence that does not fit the usable footage.

Lock the audio take

03 / Here in MuseTalk

Match this passage to that audio.

Choose matching start points and a shared length. Review the result with a fluent listener.

Generate and review the lips

A concrete clip plan

Different language. A shared length.

Check the shared duration before you lip sync a dubbed video. This nine-second plan is illustrative; it is not the settings of the French example.

Illustrative selection · not a generated test

Usable footage4–13 s

A continuous nine-second passage with one clear speaker.

Approved dub1–10 s

Nine seconds from the final target-language recording.

One shared length9 s

No automatic speech stretching or video looping.

No looping or padding. Read the clip selection guide.

From your files to a reviewed clip

How to lip sync a dubbed video.

Use the generator above with your own files. For every control and input limit, use the complete online guide.

01
Prepare the two approved files.
Prepare the original MP4 and approved target-language WAV or MP3. Translation and recording come first.
Details & checks
To lip sync a dubbed video, supply approved footage and a finished voice recording you have permission to process. Keep music in your editing project: the supplied recording replaces the generated passage’s soundtrack.
02
Fit the recording to a clear passage.
Select one clear speaker and a shared length. Shorten the recording or choose more footage if needed.
Details & checks
Choose one speaker without a scene cut. Set both start points and a shared 5–60 second length. If the recording is too long, shorten it or choose more footage; the service does not stretch or translate it.
03
Review a short lip-sync pass.
Preview the selected inputs, confirm permission and inspect the quote before generating.
Details & checks
Preview the selected inputs, confirm permission, sign in and review the quote. A revised voiceover needs a new generation; compare each result against the recording actually supplied for that job.
04
Review the language and the movement.
Review with a fluent listener, then finish the surrounding edit, subtitles and audio mix in your editor.
Details & checks
After you lip sync a dubbed video, check pronunciation, sentence starts, pauses and mouth detail with a fluent listener. Download the MP4 and finish the surrounding project in your editor; automatic subtitles and full-film editing are not included.

A few useful answers

Before you lip sync a dubbed video.

See current offers on pricing. Generation starts after your confirmation.

Can I lip sync a dubbed video before recording the voice?

To lip sync a dubbed video, finish the translated recording first. This tool matches mouth movement to supplied audio; it does not translate, synthesize speech or clone a voice.

Is the French example translated from the original video?

No. This real run pairs stock footage with a separate French archival recording. It is not a translation of the source scene.

What if the translated recording is longer than the scene?

To lip sync a dubbed video, both inputs must contain the whole selected duration. Shorten the wording or delivery, record another take or use a longer scene. Audio stretching, looping and padding are not included.

Can I localize a full lesson or several speakers at once?

Each job covers one visible speaker and 5–60 seconds. Full-course editing, subtitles and multi-speaker batches are not included.

Another job to do?

Scenario 01

Fix AI video lip sync. Keep the usable take.

Scenario 02

Replace dialogue in video. One line at a time.

Start with one clear speaker

Ready to lip sync a dubbed video?

Try my video and finished dub

Need to see more first? Watch all real examples.