In short: Open AI Dubbing, upload an MP4, MOV or WEBM video (up to 60 MB) or paste a direct video link, pick the language it is spoken in and the language you want, and leave the voice on Automatic or pick one yourself. Speechma Pro translates the speech, replaces it with a natural voice in the new language, and gives you the dubbed video to download as an MP4. Videos spoken in 12 languages can be dubbed into 9.
How to translate the voice in a video
- Add your videoUpload an MP4, MOV or WEBM file up to 60 MB, or paste a direct link that ends in .mp4, .webm or .mov. Short clips dub fastest.
- Set the source language and “Dub into”Pick the language spoken in the video (English, Hindi, Spanish, French, Portuguese, Italian, German, Russian, Japanese, Korean, Chinese or Arabic), then the language you want it to be heard in.
- Choose a voiceLeave Dubbed voice on Automatic and the AI picks a natural native voice for that language. Prefer a specific narrator? Open More options and pick one from the list.
- Set the speed (optional)Under More options you can make the new speech slower or faster, from 0.8x to 1.25x.
- Generate and keep the tab openPress Generate Dub. Then preview the dubbed video and download it as an MP4.
Which languages can it translate?
| Languages | |
|---|---|
| Spoken in the video | English, Hindi, Spanish, French, Portuguese, Italian, German, Russian, Japanese, Korean, Chinese, Arabic |
| Dub into | English (US), English (UK), Spanish, French, Hindi, Portuguese (Brazil), Italian, Japanese, Chinese |
| Voice | Automatic native voice, or pick one from the list for the target language |
| Output | Dubbed video, downloadable as MP4 |
The dub uses natural native voices for each language. It does not copy the voice of the person in the video.
What happens to your video
Speechma Pro sends your video to the AI, which listens to the speech, translates it, and speaks the translation with a natural voice in your chosen language. The new speech replaces the original speech, and you get the finished video back.
Your video is sent for processing only and is never stored on Speechma Pro’s servers. Download the result when it is ready.
Tips for a translation that sounds natural
- Use a clean recording. One person, close to the mic, in a quiet room translates best. Music, wind and crosstalk make the speech harder to understand.
- Speak in full sentences. Clear, simple sentences translate more accurately than slang or run-on thoughts.
- Set the right source language. Picking the language actually spoken in the video gives the best result.
- Adjust the speed. Some languages need more words than English. If the dub feels rushed, choose 0.8x or 0.9x under More options.
- Have a fluent speaker check it. For medical, legal or safety content, ask a native speaker to watch the result before you publish.
- Only translate videos you have the right to use. Your own videos, or ones you have permission to dub.
Example: one coaching video, three audiences
A fitness coach in Texas records a 2-minute English tip about warming up before a run. In one sitting she:
- Uploads the MP4, sets the source language to English and Dub into to Spanish, leaves the voice on Automatic, and generates.
- Repeats for Portuguese (Brazil) and French.
- Uploads each version to YouTube with a translated title and description.
Her Spanish-speaking clients can now follow her tips without reading subtitles. For longer videos, dub each short chapter separately. More detail in our step-by-step dubbing guide.
Want your own voice for new scripts?
AI Dubbing uses natural native voices, not a copy of the speaker. To have your own voice read a brand-new script, use Voice Cloning: upload a clean short clip of your voice and type any text.
Frequently asked questions
Can AI translate my video and still sound like me?
Not with Speechma Pro’s AI Dubbing. The translation is spoken by a natural native voice for the target language, picked automatically or chosen by you. To read new scripts in your own voice, try Voice Cloning.
Is the AI voice translator included in Speechma Pro?
Yes. It is included in Speechma Pro, and you can use the result commercially as long as you own the original video.
How big can my video be?
Up to 60 MB in MP4, MOV or WEBM, or a direct link ending in .mp4, .webm or .mov. Short clips dub fastest, so split longer videos into parts.
Which languages can it understand?
The speech in your video can be in English, Hindi, Spanish, French, Portuguese, Italian, German, Russian, Japanese, Korean, Chinese or Arabic.
Which languages can it translate into?
English (US), English (UK), Spanish, French, Hindi, Portuguese (Brazil), Italian, Japanese and Chinese.
Does it change lip movements?
No. The speech is replaced, but the picture is not changed. It works best for talking-head clips, tutorials, slideshows and screen recordings.
Is my video stored on your servers?
No. Your video is sent to the AI for processing only and is never stored on Speechma Pro’s servers.
The Speechma newsletter
Make better voiceovers, faster
- New voices and features the day they launch
- Script templates and tricks that make AI voices sound human
- Creator stories, community picks and early access