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Lecture transcription, from recording to notes
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- Verbatim and edited version
- 6 files: Word, TXT and Markdown
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- Summary and key points
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Record a class, seminar or talk of up to 3 hours and upload the file. The verbatim version keeps every word; the edited version adds headings, a short summary and key points to build your notes on.
- Verbatim + edited version
- 6 files: Word, TXT, Markdown
- 90+ languages
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Two versions of every transcript
Verbatim Every word as spoken, fillers included.
So, um, how did you, how did you start the bakery?
Well, I I started in 2019 with, uh, one oven and my friend Marco Bell Lucci. The first year was really hard.
Edited Corrected, laid out, with headings and a summary. Nothing added.
How it started
So, how did you start the bakery?
Well, I started in 2019 with one oven and my friend Marco Bellucci. The first year was really hard.
The names you type in fix the spelling: “Marco Bell Lucci” becomes “Marco Bellucci”.
Made for one main speaker
Lectures, seminars and talks usually have one person doing most of the talking. Dettalo labels speakers across the whole recording in one pass, so the lecturer keeps one label from the first minute to the last, and questions from the room are labeled separately. A file can be up to 3 hours long, enough for a double session. A course taught in another language works the same way: the language is detected automatically, from more than 90.
From transcript to notes
- Verbatim: every word the lecturer said, with a timestamp for each paragraph. When something is unclear, you find the spot in the recording and listen again.
- Edited: fillers removed, the lecture split into paragraphs under headings, plus a short summary and key points. Nothing is added to what was said, and every change is listed at the end.
The Markdown file goes straight into note apps such as Obsidian or Notion; the Word file is easy to print and annotate.
Recording a lecture that transcribes well
- Ask before you record, and follow your university's rules.
- Sit near the front, or, with the lecturer's permission, put your phone near the lectern. Distance from the speaker raises the error rate.
- Keep the microphone clear of rustling paper, keyboards and conversations next to you.
- Check battery and storage before a long session, so the recording doesn't stop halfway.
- Type the course vocabulary: up to 60 names and terms, such as authors, theories and abbreviations, to get them spelled right.
Seminars and discussions
Seminars with many voices work too: up to 32 speakers are labeled. Tell us roughly how many people speak. Students far from the microphone and people talking over each other cause more errors, so check those passages against the recording.
If you recorded a conversation with two or three people, the interview transcription page has tips for that. Before you pay, read the first 2 minutes free, and see the accuracy page for what to expect.
How it works
Upload
Drop an audio or video file, up to 3 hours. No account needed.
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In about 2 minutes you read the first 2 minutes, speakers labeled, verbatim and edited.
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Download
We email you a private link. Confirm the speaker names and download 6 files.
What a transcript costs
| Price | How you pay | |
|---|---|---|
| Human transcription (Rev) | $1.99 per minute: about $119 for one hour | Per minute of audio |
| Subscription apps (TurboScribe, Otter) | $16.99–20 a month, or $8.33–10 a month billed yearly | Monthly or yearly plan |
| Dettalo | $8.90 per file, up to 3 hours | Once per file, no subscription |
Questions and answers
Can I transcribe a 3-hour lecture in one go?
Yes. One file can be up to 3 hours or 2 GB, and it costs $8.90 whatever the length. A longer recording needs to be split into parts; each part is a separate file.
Will students' questions be in the transcript?
If your recorder picked them up, yes, labeled as other speakers. Questions from the back of the room are often faint, so expect more errors there than in the lecturer's part.
Is the edited version a set of study notes?
It's a clean base for them: fillers removed, paragraphs, headings, a short summary and key points. It doesn't add anything the lecturer didn't say, so extra examples and your own thoughts are still up to you.
How do I get technical terms right?
Type up to 60 names and terms before the transcription starts: authors, theories, places, abbreviations, course vocabulary. They help us spell them right.
Am I allowed to record my lecturer?
Ask first, and follow your university's rules on recording. Only upload recordings you are allowed to use.
How long does it take?
A 1-hour lecture is usually ready in about 10 minutes. You can close the page: we email you when it is done.