How to Translate and Dub a Video into Another Language on iPhone
A short product review, travel clip or tutorial can reach a different audience without recording it again. Tau34’s Video Translate (Beta) translates spoken audio and creates a new AI voice track for your existing video on iPhone.
This guide uses a real example: a short Russian-language clip showing a jar of nopalitos in a shop, followed by an English dub. The recording below shows the same workflow and the matching translated result. Russian is simply the source language in this example.
Watch the original and English dub
Play the original first, then the English version. Both clips are about ten seconds long. The product, camera movement and picture remain the focus while the spoken language changes. This example has one narrator; it does not demonstrate multi-speaker dubbing or lip synchronization.
What can you use AI video dubbing for?
Use it to localize a short product demonstration, explain an app feature to another audience, translate a travel tip, or prepare another language version of an educational clip. Creators can use the exported file in their own workflow for YouTube Shorts, Instagram Reels or TikTok.
Unlike creating a video from a text prompt, video dubbing starts with footage you already have. You keep your visual demonstration and give viewers a spoken translation.
Tau34 currently supports videos up to 60 seconds and 14 target languages. This article demonstrates English; it does not show the complete language menu.
1. Open Video Translate and choose your video
Open the Video Translate tab. The page title in this recording is Video Translate (Beta). Under Your video, tap Photos and select your clip. A Files option is also visible; the example uses Photos.
Once the clip is selected, the app displays its duration and an Original preview. The example is shown as an eleven-second selection because the interface rounds the duration.
2. Set the language pair and voice options
Under Language Pair, the example uses Automatic for the source and English for the target. The screen recording begins with these values already selected.
Match original voice is switched on. The interface describes this as automatically matching a similar voice: Tau34 selects a suitable AI voice, rather than promising an identical copy of the narrator’s voice. The result in this recording is labelled Algenib.
Preserve Background is also switched on. This option keeps background sound in the mix. The example shows the setting, but it is not a separate music-isolation or background-quality test.
3. Tap Translate Video
Tap Translate Video to begin. The recording shows progress while the app matches the voice, voices the phrase and assembles the translated video. These stages are automatic; you do not need to position sound clips on an editing timeline.
Processing time depends on the clip and service conditions. The demonstration recording is edited, so its length is not a promise of how long every translation takes.
Watch the process in Tau34
The screen recording follows selection from Photos, the prepared language and voice settings, translation and playback. It ends on the result screen with the saving and sharing controls visible.
4. Play the result and save or share it
When processing finishes, the Translation section contains a video player. Tap its play control to watch the translated clip. This is the finished video with the new voice track, not a separate audio file you need to combine manually.
Below the player, use Save to Photos to save the video to your photo library, or Share to open the iPhone sharing options. Both buttons are visible in the supplied recording; it does not show completion of a save or a share-sheet action.
Dubbing an existing video or creating new narration?
Choose Video Translate when the spoken content is already in your video and you want it in another language. If you have a new script to record, see how to create AI narration with one speaker on iPhone.
For a conversation created from text, start with two-voice AI dialogue. To turn that generated conversation into a video with speaker portraits and highlighted words, use the AI video podcast guide.
Frequently asked questions
Does this copy my voice exactly?
No exact voice-copy claim is made here. Match original voice selects a similar AI voice. The screen shows the chosen result voice after translation.
Does this translate text printed inside the picture?
This guide demonstrates translating spoken audio. It does not demonstrate replacing labels, captions or other text already visible inside the original picture.
Can I translate a video with more than one speaker?
Tau34’s dubbing feature supports identifying multiple speakers and assigning suitable AI voices. The example on this page contains one narrator, so it should be judged as a single-speaker demonstration.
Does the example demonstrate lip sync?
No. It is an off-camera product commentary. This article demonstrates translated speech over the existing footage and makes no claim about changing a person’s mouth movements.