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AI Lecture Translator: Master Any Course

In your native language, terminology intact. Upload a lecture recording or paste a course link—Utell transcribes, translates, and exports bilingual notes. Built for international students, researchers, and online learners.

Audio Translator

Daily trial: 3/3
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  • uploadDrag the audio file here, or select a fileSupported file formats: MP3, WAV, MP4, OGG, FLAC, M4A
    Supported file length: less than 15 seconds
    Supported file size: less than 15MB
  • microphoneClick the microphone to start recordingThe maximum recording time is 15 seconds
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What is an AI Lecture Translator?

An AI lecture translator converts recorded talks, courses, or seminars into another language while preserving the instructor's voice and emphasis — so the meaning lands the same way it did live.

Utell processes long sessions end-to-end: speaker-aware transcription, terminology-consistent translation, and natural narration that matches the original pacing.

Why Utell vs Traditional Methods

Three reasons educators choose Utell over manual subtitling.

vs Re-recording courses for each market

Days, not months. The instructor's voice carries across every language.

vs Generic auto-translate tools

Domain glossaries: medicine, law, ML, finance—terms stay precise.

vs Manual note-taking in a second language

Bilingual notes auto-generated, side-by-side, exam-ready.

Everything You Need to Go Multilingual

Notes, audio, and a bilingual transcript—everything you need to actually study.

Term Glossary

Domain Terms Stay Precise

Subject-aware glossaries for medicine, ML, law, finance, biology, and more—technical terms keep their meaning instead of getting mistranslated.

Note Export

Bilingual Notes, Exam-Ready

Auto-generated study notes with timestamps, key concepts, and bilingual quotes—exportable to PDF, Markdown, or Anki flashcards.

Slow Playback

Slow & Loop Any Section

0.5×–2× playback with section looping and bilingual subtitle sync—ideal for difficult passages and language-learning practice.

Built for Learners Going Global

International Students

Follow English-language lectures with bilingual notes—catch every concept, not just the easy ones.

Researchers

Translate seminar recordings and conference talks from any language into your native tongue.

Online Learners

Take MOOCs, bootcamps, and YouTube courses in your native language without waiting for official subs.

Institutions

Localize your courses for international cohorts without re-recording instructors.

How to Translate a Lecture in Three Steps

Upload an MP3/WAV/M4A from your computer, or paste a YouTube, Coursera, or Khan Academy link. Zoom recordings work too.

TipSingle-speaker lecture audio gives the most accurate terminology results.

Lecture Translator FAQ

Everything you need to know about translating lectures and courses with Utell AI.

  • How accurate is the terminology?arrow normalarrow active
    Utell loads subject-specific glossaries (medicine, ML, law, finance, biology, and more) before translating. In benchmarks, this lifts technical-term accuracy from ~70% (generic translators) to 95%+ in the chosen domain.
  • Can it translate full courses, not just one lecture?arrow normalarrow active
    Yes. Upload multiple episodes or a course playlist link—Utell processes them in parallel and keeps a consistent glossary across all lectures so terminology doesn't drift.
  • What output formats do I get?arrow normalarrow active
    Translated audio (MP3), bilingual transcript with timestamps (TXT/SRT/VTT), and study notes exportable as PDF, Markdown, or Anki flashcards.
  • Does it work for technical and scientific lectures?arrow normalarrow active
    Yes. Domain glossaries cover STEM (math, physics, biology, ML), professional fields (medicine, law, finance), and humanities. You pick the subject before translation.
  • Can institutions use it to localize their courses?arrow normalarrow active
    Yes. Utell offers institutional plans with brand-glossary uploads, batch processing, and the option to preserve the instructor's voice via voice cloning—dramatically cheaper than re-recording.

Translate your first lecture—free.

Try Utell AI Lecture Translator on a real Coursera, YouTube, or Zoom recording. No credit card. Bilingual notes in minutes.

✓ No credit card · ✓ Domain glossaries · ✓ Zero audio retention

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