Narrate a whole course with one instructor voice — openings, explainers, walkthroughs, knowledge checks, and recaps. Change a line, regenerate that block, and republish without booking a booth.
Twelve demos produced for this page — six course subjects, each directed for the register that subject needs, then one personal-finance lesson narrated in six languages by the same instructor. Every script is printed beside the audio; headphones recommended.
Original generated audio
Scripts included
No sign-up to listen
Course subjects
Statistics, Spanish, anatomy, chords. Same studio.
A narrator that teaches finance the way it teaches eight-year-olds is teaching one of them badly. Hear six subjects directed for the register each actually needs — dense clinical terminology, a modelled Spanish phrase, a worked calculation, a chord that has to sound fun.
Anysubject you teach
Can AI narration teach any subject? The question is really about register: terminology has to be articulated, examples have to be paced, and young learners need a different energy than adults. All three are directable per lesson.
MiloData instructor
Lesson
Data and statistics
Standard deviation answers one question: how far, on average, does a value sit from the mean? A small deviation means your data clusters tightly. A large one means the average is hiding the story.
Unmixr AI Voice
0:18
SiaLanguage tutor
Lesson
Language learning
Walk into any shop and you'll hear this first. ¿En qué puedo ayudarle? It means: how can I help you. Listen once more, then say it with me. ¿En qué puedo ayudarle?
Unmixr AI Voice
0:14
RafiFinance instructor
Lesson
Personal finance
Two hundred a month. Eight percent a year. Thirty years. You put in seventy-two thousand. You finish near three hundred thousand. Everything above what you contributed is time doing the work, not you.
Unmixr AI Voice
0:16
NiaClinical educator
Lesson
Health and anatomy
The cardiac cycle has two phases. In diastole, the ventricles relax and fill through the mitral and tricuspid valves. In systole, they contract, and blood leaves through the aortic and pulmonary valves.
Unmixr AI Voice
0:15
NicoMusic teacher
Lesson
Music and creative
One, five, six, four. Four chords, and you already know a hundred songs. Play them in that order and listen for the lift on the six — that is the chord doing the emotional work.
Unmixr AI Voice
0:14
ZoeK-12 teacher
Lesson
Young learners
Water is a bit of a show-off. It can be ice, it can be a puddle, and it can be the steam above a kettle — and it is the same water every single time. So what do you think makes it change?
Unmixr AI Voice
0:13
One curriculum, every cohort
One finance lesson. Every language. Same instructor.
The same lesson from a personal-finance course, narrated in English, Spanish, French, Japanese, Arabic, and Hindi by one course instructor. The language changes; the teaching voice your learners enrolled for does not.
100+languages available
Can one course keep the same narrator across languages? Yes — translate the lesson script, keep one instructor voice across every version, and publish each locale with its own captions.
AdaCourse instructor
Same voice
English
Before you invest anything, build the boring thing first: three months of expenses, in an account you can reach the same day. It is not the exciting lesson. It is the one that makes every lesson after it survivable.
Unmixr AI Voice
0:17
AdaCourse instructor
Same voice
Spanish
Antes de invertir nada, construye primero lo aburrido: tres meses de gastos, en una cuenta a la que puedas acceder el mismo día. No es la lección emocionante. Es la que hace que todas las siguientes sean soportables.
Unmixr AI Voice
0:17
AdaCourse instructor
Same voice
French
Avant d'investir quoi que ce soit, commencez par la partie ennuyeuse : trois mois de dépenses, sur un compte accessible le jour même. Ce n'est pas la leçon la plus excitante. C'est celle qui rend toutes les suivantes supportables.
قبل أن تستثمر أي شيء، ابدأ بالجزء الممل: مصاريف ثلاثة أشهر، في حساب تستطيع الوصول إليه في اليوم نفسه. ليس هذا هو الدرس المثير، لكنه الدرس الذي يجعل كل ما يليه ممكناً.
Unmixr AI Voice
0:14
AdaCourse instructor
Same voice
Hindi
निवेश शुरू करने से पहले वह उबाऊ काम कीजिए: तीन महीने का ख़र्च, ऐसे खाते में जहाँ से उसी दिन पैसे निकाले जा सकें। यह रोमांचक पाठ नहीं है। यही वह पाठ है जो आगे के हर पाठ को टिकाऊ बनाता है।
Unmixr AI Voice
0:15
eLearning & training
Upload the deck. Publish the course.
A real clinical training deck, dropped into Unmixr and published as a narrated
video lesson — no recording booth, no editing timeline, no re-record when the slides change.
InputPowerPoint deck4 of 36 slides
PPTXCaesarean_Scar_Ectopic_Training.pptx
1.7 MB · the untouched source file
Narrated end to end with an Unmixr AI voice
Every line stayed editable before export
Start from slidesPPTXPPTPDF
Or from a documentPDFDOCXEPUBTXTMarkdownHTML
1 Your source becomes the script
Upload a deck or a document — Unmixr reads it and drafts narration section by section.
Rewrite any line before a word is voiced.
2 Pick the teaching voice
A voice for every use case, with pitch, speed, and emphasis you can tune per sentence
or per term.
3 Captions and transcript
SRT and VTT subtitles plus a full transcript come out of the same project — ready for
your LMS.
4 Localize the course
Dub the finished lesson into 100+ languages without rebuilding a single slide.
Dubbing examples
Hear the same video, dubbed into every language.
One source clip, one speaker, dubbed with Unmixr. Switch languages while it plays and
judge the timing, tone, and pronunciation for yourself.
app.unmixr.com/dubbing
English
Hear it in:
The narration loop
Script it once. Fix it forever.
A course is a stack of lessons that keep changing. This is the loop built for that — script, cast, direct, publish, and come back to any block later.
1
Bring the lesson in
Paste a lesson script or import the chapter, document, or slide deck you already wrote. Unmixr splits it into blocks that follow your lesson structure instead of one unbroken wall of audio.
2
Cast one course narrator
Audition instructor voices on your own lesson — not a demo line — then lock that narrator in for every module in the curriculum.
3
Direct the teaching
Slow the definition, add a beat before the worked example, and fix how the technical terms are said. The direction sticks for the whole course.
4
Publish to your LMS
Export lesson audio with captions and a transcript, or a narrated video if the lesson has slides. Come back next quarter and regenerate only the block that changed.
Built for courses
What long-form teaching actually needs.
Generic voice tools hand you an audio file. A course needs the controls that keep
forty modules sounding like one instructor — and keep them correct a year later.
view_agenda
Lessons stay in blocks
A forty-minute lesson is not one audio file. Each section is its own block you can rewrite, re-voice, and regenerate on its own — so a single policy correction never costs you the whole lesson.
record_voice_over
One narrator, module 1 to module 40
Lock a single instructor voice across the curriculum, or clone an approved narrator in 80+ languages. The module you add next year still sounds like the one learners started with.
tune
Pronunciation that holds course-wide
Define once how a drug name, framework, acronym, or product term is spoken and every lesson in the project says it the same way. No more re-recording an hour over one word.
speed
Pacing tuned for comprehension
Slow down a definition, pause before the example, and move briskly through the recap. Learning-grade delivery is about where the attention lands, not how fast the words come out.
groups
Cast scenarios and role plays
Branching scenarios, customer role plays, and language-practice dialogue get a distinct voice per character from one script — the part of a course a single narrator can never carry alone.
translate
The whole curriculum, localized
Narrate the same lesson in 100+ languages with a consistent instructor character, and dub the video lessons from the same project. One master course, every cohort's language.
Course types
The lessons teams narrate here.
Built for course creators, instructional designers, educators, and L&D teams — every one of these is a course job, not a generic voiceover.
🎓
Online course modules
Narrate every lesson in a paid or internal course with one voice, from the module intro through the final knowledge check.
500M+Minutes of audio and video generated by creators worldwide
100+Languages for lesson narration, captions, and dubbing
80+Voice-cloning languages for a consistent course instructor
help_outlineFAQ
Course narration: your questions, answered
Straight answers for teams narrating a whole curriculum.
search
Can AI narration carry a full online course, not just a clip?expand_more
Yes — that is what this page demonstrates. The demos above cover a lesson opening, a concept explainer, a guided walkthrough, a worked example, a knowledge check, and a module wrap-up, each directed differently. Lessons are organized in blocks, so a forty-minute module stays as editable as a one-minute clip.
What is the best AI voice for course narration?expand_more
Course narration wants clear, steady, and warm over dramatic. The honest test is auditioning on your own lesson script rather than a vendor's demo line — Unmixr lets you filter voices by language, tone, and use case and hear them read your actual lesson before you commit.
How do I keep the same narrator across every module?expand_more
Lock one voice for the whole project, or clone an approved instructor voice (supported in 80+ languages) where you have permission. Pacing and pronunciation settings carry across modules, so lesson forty sounds like lesson one even if you record it a year later.
What happens when a lesson changes six months from now?expand_more
You edit the affected block and regenerate that block only. The rest of the lesson keeps the exact audio your reviewers approved, which is the practical reason teams move off studio recording for compliance and product training.
How do I stop the narrator mispronouncing technical terms?expand_more
Set a pronunciation rule for the term once and it applies project-wide — every lesson, every module. Drug names, frameworks, acronyms, and product names are the usual offenders, and they only need fixing once.
Can I narrate slide-based lessons too?expand_more
Yes. Upload the deck and Unmixr drafts narration slide by slide, then publishes a narrated video lesson with captions — the demo on this page is a real 36-slide clinical deck turned into a published lesson.
Can one course be narrated in more than one language?expand_more
Yes. Narrate the lesson script in 100+ languages with a consistent instructor character — the six-language demo above is one compliance lesson read by the same narrator — and dub finished video lessons from the same project.
Can I download the narration for my LMS?expand_more
Yes. Export lesson audio, captions, and transcripts, or a narrated MP4 for slide-based lessons. That covers LMS upload, video editors, and course platforms without extra tooling.
Can I use AI course narration in a course I sell?expand_more
On any purchased plan, every narration you generate is 100% cleared for commercial use, which covers paid courses, client work, and internal training alike. See the pricing page for current plans.
How does this compare with hiring a narrator for a course?expand_more
Studio narration bills per session, and every revision books another one — which is why courses quietly go stale. Generated narration moves the cost to the edit: you start free, generate within your plan's quota, and regenerate a changed block in minutes.
No questions matched your search.
Give your course one voice learners stay with
Narrate your next lesson free, hear it back in minutes, and keep every block editable for the day the content changes.
