How to Dub a Video into Another Language with AI

To dub a video into another language with AI, upload a video with clear speech, choose your target languages and whether to sync lips, then have the translation checked before you publish. An AI dubbing tool transcribes the speech, translates it and re-voices it in one pass, so a single upload can turn into several language versions.

Key Takeaways

• Dubbing helps most when viewers need to follow speech while watching the picture, such as in tutorials, product demos and talking-head videos.
• The source audio decides most of the quality: a quiet room, one speaker at a time and little background music.
• Turn lip sync on for close-ups, and leave it off for wide shots, voice-over style videos and faces that are small or turned away.
• Have a native speaker review names, brand terms, numbers and jokes, and check any on-screen text, which is not translated.

When dubbing beats subtitles

Dubbing is the better choice when your viewers need to watch and listen at the same time. Think of a cooking demo, a software walkthrough or a product video where the hands and the screen matter. Subtitles make people split their attention between reading and watching. A dub lets them just watch.

There is evidence that reaching people in their own language pays off:

• On YouTube, creators who uploaded multi-language audio tracks saw over 25% of their watch time come from views in the video's non-primary language, as of July 2025, according to the YouTube Official Blog (September 2025).
• For shopping, 76% of online shoppers prefer product information in their native language, according to a CSA Research survey of 8,709 consumers in 29 countries (July 2020). The survey covers product information in general, not video, but it is a useful signal if you sell in several markets.

Subtitles can still be enough. If your audience already understands the original language well, or mostly watches with the sound off, captions may do the job at lower effort. You can also use both: a dubbed track for people who listen, and subtitles for people who read.

Prepare the source video

Good input matters more than any setting. VerseIn's AI Video Dubbing page says the input decides most of the quality, and that a cleaner audio version helps more than any setting. The tool needs a spoken track to work with, so check your clip against this list before you upload.

If your final edit has music mixed in, check whether your editor can export a version with the music lower or removed. You can add the music back to the dubbed versions afterward.

How to dub a video with AI in 3 steps

VerseIn's AI Video Dubbing tool follows three steps:

1. Upload a video with clear speech.
2. Choose languages and options.
3. Confirm the cost and collect the results.

You can work in the VerseIn web app.

Step 1: Upload a video with clear speech

Start with the clip you prepared in the checklist above. The upload step shows the length and file-size limits, so check them before you export a long video.

• Pick the cleanest version of the audio you have.
• If your video has several speakers, note how many there are. That helps if you later need to correct how speakers are handled (see the FAQ).
• Trim long intros or outros with no speech if you don't need them dubbed.

Step 2: Choose languages and options

Pick the languages you want and decide whether the mouth movement should change:

• Target languages. Pick one language or several. You can choose more than one in the same run, up to the number the tool allows.
• Lip sync. Turn it on to match mouth movement to the new audio, or leave it off if you only want the voice to change. The next section explains when each setting makes sense.

If you are not sure which languages to start with, look at where your current viewers or customers already are. Your channel analytics or store data will tell you more than a guess.

Step 3: Confirm the cost and collect the results

Before anything runs, the tool shows the cost for your selection. Review it, then confirm.

• Each language is a separate result. You get one dubbed video per language, so you can download and publish them one at a time.
• Download the subtitle file too. A subtitle file can be downloaded alongside the dubbed video. You will use it in the review step below.

Watch each version all the way through before you post it, even in languages you don't speak. You can still spot audio glitches, odd pauses or a voice that doesn't fit the speaker.

Lip sync on or off?

Lip sync is worth it when viewers can clearly see the speaker's mouth. VerseIn's dubbing page recommends turning it on for close-ups, where a mismatch is noticeable, and off for wide shots, voice-over style videos and faces that are small or turned away.

If a video mixes shot types, think about where most of the speaking happens. A talking-head tutorial with a few screen recordings is still mostly close-ups. A product montage with a narrator is mostly voice-over.

Want to compare lip sync tools in more depth? See our guide to the best AI lip sync video generators. VerseIn also has a separate AI Lip Sync tool.

Review before publishing

A dub is only as good as its translation, and automatic translation can miss details that a native speaker would notice. VerseIn's dubbing page advises always having a native speaker review the result.

Ask a native speaker to check the details

Give your reviewer a short list of things to listen for:

• Names of people, places and products
• Brand terms and product names that should not be translated
• Numbers, including prices, dates and measurements
• Jokes and idioms, which often don't carry over word for word

If you work with the same languages often, keep a simple glossary of brand terms and how each one should sound. It saves your reviewers time on the next video.

Proofread with the subtitle file

The subtitle file from Step 3 is the easiest way to check the translation. Your reviewer can read it at their own pace instead of scrubbing through the video. If you publish the subtitles too, correct the file before you upload it. Keep in mind that editing the subtitle file does not change the dubbed audio.

Decide what to do with on-screen text

Dubbing changes the speech, not the picture, and on-screen text is not translated. Look for titles, captions, lower thirds, prices in graphics and calls to action. Decide whether each one needs a localized version for that market, and update it in your editor before you publish.

If the review finds a mistake

Fix the problem at the source. If a word was misheard, upload a version with cleaner audio or re-record that line. Then dub only the language that needs it again. Because each language is a separate result, the versions that passed review stay as they are.

FAQ

Can AI dubbing handle videos with more than one speaker?

Yes, in most cases. VerseIn's dubbing page says automatic speaker detection works for most videos. If a dub blends different people into one voice, you can set the number of speakers yourself.

Will the dubbed video be the same length as the original?

Not always. Translations are rarely the same length as the original speech. VerseIn's dubbing tool uses adaptive speed, which lets the pacing flex so the speech sounds natural. As a result, the dubbed version can be slightly longer or shorter than the original.

How much does it cost to dub a video with AI on VerseIn?

Dubbing uses credits for each language you choose, and each language is charged separately. If one language fails, the credits for that language are refunded. New accounts get free sign-up credits, and paid plans export without a watermark. See the pricing page for current plans.