Timestamps per section
Every section is marked with a time — handy for finding a specific point in the lecture again.
For students
Lecture transcription — turn audio into a readable transcript
Recording lectures, seminars, or tutorials? Upload the recording and get a transcript with timestamps — to read back, search, and use for exam prep. Free to try, no sign-up required.
Free trial: 3 transcriptions per calendar month, each up to 10 minutes, no account — as plain text. Speaker separation (“who said what”) and files up to 4 hours are part of the paid offerings: day pass €2.99, credit €4.99, Pro €8.99/month.
Transcribe a lecture nowHow it works
- Step 1
Upload the recording
Choose a file or paste a link — MP3, WAV, M4A and more formats are supported.
- Step 2
Choose language & number of speakers
Language is detected automatically. Optionally specify how many people speak (e.g. the lecturer plus questions from the audience).
- Step 3
Get your transcript
You get a transcript with timestamps you can read, search, and export as Word or PDF.
What you get
Speaker recognition
When multiple people speak (e.g. during Q&A), the AI distinguishes different speakers.
Word & PDF export
Download the finished transcript, formatted — for studying, archiving, or sharing with classmates.
Chat playback
Listen to the recording alongside the text, laid out like a conversation with a timeline.
Free to try, no account
No registration for the trial. For longer files a €2.99 day pass is enough — no subscription needed.
Multilingual
Besides English, other languages are recognized too — useful for foreign-language lectures or guest talks.
At a glance
- Free to try: 3 transcriptions of up to 10 minutes per calendar month, no account — as plain text.
- Supported formats: MP3, WAV, M4A, OGG, FLAC and WebM — also via direct link.
- Files up to 100 MB can be uploaded.
- The audio file is sent via OpenRouter (USA) with zero data retention for transcription; transcripts are stored only for signed-in users, encrypted.
- Free trial without an account or login; plans from €2.99 one-off, no subscription required.
- Technical anti-abuse protection: currently up to five transcription starts per hour and files up to 100 MiB.
- Processed via OpenRouter with zero data retention: the AI providers store neither audio nor text; Sprechverlauf deletes audio files after processing and keeps transcripts only for signed-in users — encrypted.
- Premium: upload videos (MP4, MOV, WebM, up to 100 MiB), name speakers and review subtitles before exporting SRT or VTT.
- The video is deleted from our server one hour after upload. Your encrypted transcript stays in your account until you delete it. Only the extracted audio is sent for transcription.
Frequently asked questions
Is this good for long lecture recordings?+
Yes. Long recordings such as lectures and seminars are transcribed with speaker labels and timestamps — ready to read, search, and export.
Do I need to register to transcribe a lecture?+
No. Sprechverlauf works without an account — upload a file, choose settings, transcribe.
Does it recognize audience questions during the lecture?+
Yes, as long as you specify the approximate number of speakers. AI-based speaker diarization assigns sections to the respective speakers.
How am I legally allowed to use the recording?+
You must be authorized to process the recording yourself (e.g. because the instructor allowed recording). Details are in our Terms of Use and Privacy Policy.
Can I export the transcript for exam prep?+
Yes. After transcription, download the result as a Word or PDF file — formatted with speakers and timestamps.
Do I need an account or a subscription?+
Not for the free trial. You only need an account to buy a plan (day pass, credit or Pro) — a subscription is never required. Technical anti-abuse limits apply.
How long is processing data retained?+
Recognition runs through OpenRouter with zero data retention — the providers (Microsoft Azure, DeepInfra, Groq) store neither audio nor text. Sprechverlauf deletes uploaded audio files after processing, at the latest after two hours, and keeps the transcript in memory for at most two hours. Only signed-in users get an encrypted copy in their account, which they can delete at any time.
Video uploads, speaker names and subtitles+
Premium: upload videos (MP4, MOV, WebM, up to 100 MiB), name speakers and review subtitles before exporting SRT or VTT. The video is deleted from our server one hour after upload. Your encrypted transcript stays in your account until you delete it. Only the extracted audio is sent for transcription.