How to Dub a Video with AI and Keep Each Speaker's Voice

HypeNest shows each stage while the dub runs, and you can keep editing the clip in the meantime. Lines appear in the script as soon as they are voiced.

The voice decides whether a dub sounds like you speaking another language or like a stranger reading your script.

• Own voice: each speaker's voice is cloned from the clip itself. Choose the sample range on the timeline, a stretch where that person speaks clearly without music or someone talking over them.
• Library voice: pick from built-in male and female voices when you prefer a neutral narrator or the source audio is too noisy to clone well.
• Only clone voices you have the right to use: your own, or those of people who agreed to it.

Translations rarely have the same length as the original. A sentence that takes three seconds in English can take four in German or Italian, and a dubbed line that overruns either sounds rushed or drifts away from the picture. That is the most common reason a dub feels off.

In the script, every line shows a fit check: it fits the original timing, or it is longer. For lines that are too long, shorten the wording, or set the pace to Slower, Natural or Faster. Fix names and terms the translation got wrong, then regenerate the line or apply your changes. Read the script aloud once; if a line sounds unnatural to you, it will to a native speaker too.

Two sliders control the mix: Dubbed voice and Original sound. The preview updates immediately, so play the busiest part of the clip, where music or laughter is loudest, and adjust until the voice is clear without the background disappearing. A dub with no ambience sounds like a voice-over recorded in another room.

If you trim or extend a clip after it has been dubbed, you can update the dub. Edited lines are kept where they still fit, and only the new part is translated and voiced. The same works for script edits: change a line and re-voice just the lines you changed.

The Clip Agent in the editor can do this for you too. Ask it to dub the clip into a language or update the dub after a trim, and it shows a confirm card before it starts, then follows the progress in the chat. See editing clips with AI chat.

• Add several languages to one clip. Each one is a separate language version you can open in the editor.
• Download each version separately ("Download" plus the language). The Exports page lists the language voice files as well.
• Write the title and description in the same language as the dub. A Spanish dub with an English title confuses viewers and search. Our guide to multilingual titles and descriptions covers how to package each version.
• Ask a native speaker to watch the first version in a language you plan to publish regularly.

• 10 languages: English, German, French, Italian, Spanish, Portuguese, Russian, Japanese, Korean and Chinese.
• Source length: up to 20 minutes.
• Free plan: one free dub of a clip up to 60 seconds. The Video dubbing tool takes videos up to 2 minutes on Free; the free try covers up to 60 seconds. After that, a paid plan.
• Paid plans: dubbing is paid from the monthly usage balance, and Video dubbing takes videos up to 20 minutes.
• If a dub fails, nothing is charged.

HypeNest is not a voice changer. It does not add robot, pitch or cartoon effects to your voice, and it does not disguise who is speaking. If that is what you need, a dedicated voice changer app is the right tool.

What HypeNest does with voices is two things. Dubbing, described above, makes your clip speak another language in each speaker's own voice. Hook voice-over adds an AI voice that reads the hook aloud as the clip starts, with 12 voices (6 female, 6 male), text written by AI or by you, and either the original sound lowered under the voice or the first frame frozen while it plays.