Course Video Localization in 100+ languages — narrated or dubbed

There are two, and the right one depends on what you start with. If the course exists as scripts, slides, or documents, narrate it again in each language with the same instructor voice — it sounds native and every lesson stays editable. If the course already exists as recorded video, dub it: transcribe, translate, review, voice, and export with subtitles, leaving the footage untouched. Unmixr runs both paths in one browser-based studio, in 100+ languages, and most teams end up using each where it fits.

Yes. Translate the lesson script, keep one instructor voice across every version, and export each language with its own captions. The six-language demo on this page is one personal-finance lesson read by the same narrator in English, Spanish, French, Japanese, Arabic, and Hindi. Where you have permission, an approved trainer's voice can also be cloned in 80+ languages so the course keeps a real instructor's identity abroad.

Yes. Upload the video and Unmixr transcribes it, detects the speakers, and translates the transcript into time-coded segments. You review every line, assign a voice per speaker (or clone the original trainer with consent), generate the dub, and export the dubbed MP4 or audio track with translated subtitles. Videos up to 60 minutes are accepted per upload; longer courses are dubbed lesson by lesson, which is how course libraries are organised anyway.

Narrate when the course is built from slides, scripts, or documents, when you want it to sound native, or when you expect to keep editing it — a changed block is regenerated per language in minutes. Dub when the course already exists as video, especially screen recordings and demonstrations where the visuals must stay exactly as recorded. The comparison table on this page lays the two paths side by side.

100+ languages across narration, transcription, translation, subtitles, and dubbing, with 150+ regional accents to match a learner base. Voice cloning covers 80+ languages. The practical limit is review time per language, not the platform — every translated line is worth a subject-matter read before it goes live.

Yes. Dubbing works on time-coded segments that follow your original speech, with a choice of fixed or natural duration per segment, and each one stays editable so you can tighten a line that runs long in the target language. Unmixr replaces the speech track and adds subtitles; it does not re-animate the on-screen speaker's lips.

On paid recurring plans, yes: the original speech is separated from the background before the dub is mixed, so music and room sound stay while the voice changes. This separation is not available during the free trial, where dubs are voices-only. You can also keep the original audio for individual segments — a product demo's click sounds, say — and dub the rest.

Yes, in both paths. Translation is a reviewable text step: fix terminology, names, and phrasing, split or merge segments where a sentence lands differently in the target language, then generate. After generating, edit any line and regenerate only that block or segment — the rest keeps the audio you already approved.

Yes. SRT and VTT captions export alongside the narration or the dub in every language, and the dubbed path can also burn captions into the video. If you only need captions, transcribe the lesson, translate the transcript, and export the subtitle files without dubbing at all.

Narrated path: MP3 lesson audio, a narrated MP4 when the lesson has slides, SRT and VTT captions, and a text transcript per language; course projects can also be packaged as SCORM (1.2 and 2004) on any paid plan. Dubbed path: the dubbed MP4, the dubbed audio track, translated subtitles, and a per-language bundle you can hand to a video team.

It depends on the path. Narration is one credit per character, so a ten-minute lesson of about 1,500 words costs roughly 9,000 credits per language. Dubbing is 1,920 credits per minute of video. Starter is $19/month with 500K credits every month — about 260 dubbed minutes or several hours of narration — Pro is $49/month and Business $99/month for larger catalogs, and every paid plan includes full commercial rights.

Yes. The 7-day trial includes 20,000 credits — start it in one click, and cancel anytime before it ends; nothing is charged during the trial. During the trial, uploads for dubbing are trimmed to their first five minutes and finished media exports unlock when the plan activates. The free account comes with 5,000 credits and no trial at all — enough to narrate a lesson or dub a couple of minutes and hear the result, with watermarked exports up to three minutes.

Generation is minutes per lesson in either path — a translated script narrates almost immediately, and a ten-minute video dubs in the background while you work on the next one. The time that matters is review: plan a subject-matter pass over each language's transcript before it goes live. Teams usually localize a pilot lesson in an afternoon and then batch the rest.

No. On the dubbed path, the visuals stay untouched — each language version swaps in the localized speech track and subtitles over the same video file. On the narrated path, the slides render once per language with the new narration timed to them automatically.

Yes. On any purchased plan, every narration and dub you generate is 100% cleared for commercial use — paid courses, client work, and internal training alike. The one rule that always applies is consent: only clone a voice you own or have written permission to use.