Home Guides How to transcribe a lecture and study from it
How to transcribe a lecture and study from it
Re-listening to a two-hour lecture to find one definition is a bad use of an evening. As text, that definition is one search away, and the rest of the recording stops costing you time.
The catch is that a transcript is not the same thing as notes. This guide covers both halves: getting accurate text out of a class, and then getting usable notes out of the text.
Transcribe for free60 minutes a month at no cost, no card and no sign-up to try it.
Step by step
- Record the class, or find the videoA voice memo on a phone left on the desk is enough in most lecture halls. If the class was published or streamed, paste the YouTube link instead of recording.
- Transcribe itPunctuation and paragraphs are applied automatically, which matters when the source is an hour of uninterrupted speech.
- Fix the vocabulary firstSearch the transcript for the technical terms of the subject and correct them in one pass. Specialised vocabulary is where the errors cluster, and those are the words you need.
- Compress it into notesCut everything that is not an idea, a definition or an example. What survives is your study material; the transcript stays as the archive you search when something is missing.
Why the transcript is not your notes
A lecture transcript contains every digression, every repetition and every return to the previous point. Printed out, an hour of class is something like nine thousand words, most of which will not be on the exam. Studying from it directly is slower than studying from the slides.
The value of the transcript is that it is complete and searchable, not that it is readable. Treat it as the source you go back to, and build something shorter on top of it.
Recording a lecture hall
A large room is harder than a meeting: the lecturer moves, the acoustics echo, and questions from the audience come from far away. The lecturer's own voice usually transcribes well; the questions often do not.
If you sit in the same place every week, try one recording from the front and one from the middle and compare them. The difference is usually large enough to settle where you sit for the rest of the semester.
Accessibility and second languages
Written lectures also help anyone who cannot follow the class by ear, and anyone studying in a language they are still learning. Reading at your own pace and looking up a word mid-sentence is not something you can do with live audio.
Frequent questions
Can I transcribe a class recorded on my phone?
Yes. Phone voice memos are usually M4A files and upload directly, along with MP3, WAV and OGG.
Does it handle technical vocabulary?
Mostly, but specialised terms and proper names are the most likely mistakes. Correcting them in one search-and-replace pass is worth the two minutes.
Is 60 free minutes a month enough for a course?
It covers about one long class a month. For a full semester, Pro at US$10 a month gives you 300 minutes and Max at US$30 removes the limit.
Can I get a summary instead of the full transcript?
Yes, with an account. The content tools compress the transcript into a summary, which is a much faster starting point than nine thousand words.
Am I allowed to record a lecture?
That depends on your institution and on the lecturer. Many allow it for personal study and not for redistribution, so check before you publish anything.