Turn Lecture Recordings Into Searchable Text
Upload your lecture audio or video and get accurate transcripts in minutes. Word-level timestamps, 30+ languages, and AI study summaries included.
No sign-up needed to try — drop your audio below.
Idioma del audio
Arrastra tus archivos aquí
o haz clic para seleccionar archivos
Study-Ready Transcripts
Turn hours of lecture recordings into searchable, readable text. Highlight key points, search for terms, and review at your own pace.
Word-Level Timestamps
Jump directly to any moment in the lecture. Timestamps on every word let you navigate the recording without scrubbing.
30+ Languages Supported
Transcribe lectures in English, Spanish, French, German, Mandarin, and 25+ more languages. Great for international courses.
AI-Generated Summaries
Enable AI summaries to get a concise overview of each lecture — ideal for revision notes, study guides, and quick reviews.
Start free — 100 minutes on signup
Create a free account to save your transcriptions, access speaker identification, and more.
Frequently Asked Questions
What file formats are supported for lecture transcription?
MP3toTXT supports MP3, WAV, M4A, AAC, OGG, FLAC, and more. You can also upload recorded video lectures (MP4, MOV) and we'll extract the audio automatically.
How accurate is the transcription for academic lectures?
Our engine (powered by AssemblyAI) achieves 90–95%+ accuracy on clear lecture audio. Accuracy is highest for well-recorded sessions with minimal background noise. Technical terminology is handled well.
Can I transcribe lectures recorded on Zoom or Teams?
Yes. Download the recording as an MP4 or MP3 from Zoom/Teams, then upload it directly. We support all common recording output formats.
How long does it take to transcribe a 1-hour lecture?
A 60-minute lecture typically completes in under 10 minutes. You can queue multiple recordings and process them in parallel.
Can I transcribe lectures in languages other than English?
Absolutely. We support 30+ languages including Spanish, French, German, Portuguese, Italian, Mandarin, Japanese, and more. You can auto-detect the language or select it manually.