AI dubbing with lip sync for your lessons: method, minutes and limits

You recorded your course in Spanish and part of your audience speaks Portuguese or English. Subtitles help, but some people prefer to hear you in their language. AI dubbing answers that: the lesson sounds in another language and your mouth moves to match. This article explains how LearnSuite approaches it, how minutes are controlled and, above all, what you should not expect. It is a feature with caveats and I want to state them up front.

The problem itself, from the instructor's side, is in teaching in several languages without re-recording.

The method, step by step

1. The original audio of the lesson is transcribed.
2. The text is translated into the target language.
3. The voice is synthesised by segments, with one consistent voice for each speaker in the lesson.
4. The audio clip is fitted and lip sync is applied over the frames of your original video: the video is still your image, with the mouth adapted to the new audio.
5. Subtitles are generated for that version and stored with the video and audio.
6. The version attaches to your lesson as one more language, ready to go through review before publishing (see language versions with review).

There is also a voice-only variant, without lip sync, for lessons where your face is not on screen.

How minutes work

Dubbing uses generation minutes, bought in packs. Each pack is 100 minutes for €490. No plan includes them.

The mechanics protect your balance:

• When you request a dub, the source video's minutes (rounded up) are reserved for each language.
• If the balance is not enough, the job is not queued.
• When it finishes, the minutes of the real output are charged, capped at what was reserved, and the difference is returned.
• If the job fails, or you cancel it while queued, the whole reservation is returned.
• There is only one active job per lesson and language.
• In the dashboard you see a ledger: purchases, reservations, consumption and refunds.

A simple sum: a 12-minute lesson into two languages reserves 24 minutes. A pack of 100 covers about four lessons like that.

Who it makes sense for

• Instructors whose course value is seeing and hearing you explain, and who want a second language without re-recording.
• Courses with a few key lessons sold in another market, where the minutes investment pays off.
• People who have already weighed subtitles vs dubbing and know their niche prefers hearing their own language.

What it is NOT (important)

This is the part I most want you to read:

• Today it is not a fully automatic "upload the video and you're done" process. The dashboard lets you request a dub and reserve minutes, but the processing is launched by the LearnSuite team in an assisted way, not a button that answers in minutes. We do not promise turnaround times.
• It does not use your cloned voice. The dub voice is a catalogue voice, not yours. Cloning the instructor's voice, which would require your written consent, is not available.
• Quality is not perfect. In our tests with a lesson dubbed into Brazilian Portuguese, the mouth stayed closed at moments when the instructor was gesturing. Always check the result before publishing.
• Every job has a real cost. That is why minutes are bought separately and the 14-day free trial does not include generation: it switches on with the first payment.
• It does not replace a studio dub. If your brand depends on an actor's performance, hire a professional.
• It is built for lessons with one person talking, not scenes with several shots, music or complex effects.

When in doubt, the honest recommendation is to start with a single test lesson, check the result and decide with it in front of you.

Which plan includes it

You can request dubbing from any academy with a course, but minutes are a separate extra, not something the plan includes. Plan, pack and trial details are on pricing.

When it is not the best option

• If your course is short and not very visual, subtitles (cheaper and more predictable) are usually enough.
• If you demand studio quality, your own voice or a fixed deadline, this does not guarantee it today.
• If the new language is a priority and the audience is large, re-recording once with a native speaker may pay off more.

What to do next

Dubbing is only one part: the lesson in another language must pass review, have its subtitles and, if you want fewer drop-outs, come with good support (how to keep learners from dropping out). And if you are just starting, launching your academy without a tech team gives you the order of steps. To see how each language is sold to its market, read regional pricing and checkout.