Guide

How to dub a video with AI

Updated 2026-11-11

AI dubbing on VidDub is a catalog voice, timed to the speech you already recorded. The picture stays. Subtitles can sit in the frame at the same time. Basic dubbing is free on the full video.

What you are adding

You are adding a spoken track in the target language. The voice comes from the VidDub catalog. It follows the timing of the original speech, so a pause you took is still a pause. You are keeping the face, the room, and the product you filmed.

Subtitles stay available. Many viewers watch muted, and the line in the picture is what they read. The voice is for the viewers who listen. You can publish with both. The download is one finished video.

Prepare the speech

A clear original voice gives the timing a clean path. Overlap, music that is louder than the talk, and a very fast list of numbers are the places to watch in the preview. The video can be MP4, MOV, MKV, AVI, FLV, or WebM, up to 2 GB, within 10 minutes.

Sign in first. The free preview is available after sign-in. Choose the target language. VidDub translates the speech, burns subtitles into the picture, and can speak that translation with a catalog voice. Basic dubbing on the full video is free. The minutes you spend are for the full download.

Listen in the preview

Play the preview and listen for names. A catalog voice will say the translated sentence in time with the original. If a name should stay as spoken, check that the subtitle still shows it the way your audience expects. Then listen to the last line, because that is the line you hope they remember.

One-time packs start at $3.90 for 30 minutes. Under a minute counts as one minute. Pro and Max, with monthly minutes, are in the iOS and Android apps. A pack on the web stays until you use it. Finished files stay for about 24 hours.

A second listen, on a phone

Headphones in the preview tell you if the catalog voice keeps up with a fast sentence. A phone speaker tells you if the subtitle is still the thing a muted viewer reads. Check both before you download. The voice and the line should be telling the same sentence.

If the original performance should stay, leave the catalog voice off and ship the subtitles. The translation is still in the picture. If the audience will listen in the new language, turn the voice on. Basic dubbing is free on the full video either way when you include it. The minutes apply to the download.

Save the finished file next to the project, with the language in the name. The 24-hour window is for the file on VidDub. Your download is the one you will send. The original recording remains the source for the next language next time.

Decide what the viewer hears

Catalog voice on, when the audience will listen in the target language.
Original audio kept, when the performance is the point and subtitles carry the meaning.
Bilingual subtitles, when both wordings should stay visible.
Single-language subtitles, when one line is enough.
A phone check, because that is where the video will play.
A local copy, saved the day the file is ready.
One target language per upload.
A video you have the right to dub and publish.

Deliver the dubbed file

Download the full video with minutes and treat that file as the master for the new language. The picture is the one you uploaded. The voice is the catalog voice you chose. The subtitles are in the frame.

A worked example: a four-minute welcome video in English for a Spanish-speaking team. You add a catalog voice and Spanish subtitles. In the preview the greeting lands with the smile you filmed. You download it the same day and drop it in the team folder. The English original remains the other version. The subtitle file sits next to the video if the team wants one sentence in the invite. The catalog voice is timed to the welcome you already recorded, and the picture stays the one you filmed in the office.

Related translations

Questions

Which voice is it?

A catalog voice, timed to the speech. The picture stays as recorded.

Is basic dubbing free?

Yes, on the full video. The download of that video uses minutes.

Can I keep subtitles too?

Yes. Subtitles are burned into the picture, and you get a subtitle file.

Where do I dub?

In the browser or in the iOS and Android apps. The dubbing page covers the catalog voice.

What is the smallest pack?

30 minutes for $3.90.