How to Transcribe a Lecture
Turning recorded lectures into searchable, revisable text — including the permission question and why transcribing as you go beats a panic before exams.
The Scriptorium team ·
A lecture transcript is for finding things again. The value is not in reading it once; it is in being able to search a term's worth of lectures for the five minutes where something was actually explained.
Check you are allowed to record
Most institutions have a policy, and it is usually more permissive than students assume — many explicitly allow recording for personal study. Some require you to ask, and disability services can often arrange permission where the default is no.
The consistent rule everywhere is that a recording made for personal study is for personal study. Uploading a lecturer's recording, or its transcript, to a shared drive or a study site is a copyright problem and often a disciplinary one.
Recording it well
Lecture halls are close to the worst case for automatic transcription: a large room, hard surfaces, a speaker who moves, and a phone in a bag three rows back.
- Sit near the front if you can. Distance is the dominant factor.
- Put the phone on the desk, microphone end pointing at the lecturer, not in a bag or pocket.
- If the lecture is recorded officially, use that recording instead. It is usually taken from a lapel microphone and is far cleaner than anything you can capture.
- Check whether slides or notes are published. Technical terms spelled correctly on a slide are exactly what the transcript will get wrong.
Transcribing
- Upload the recording to audio to text.
- Set the language.
- Skim the transcript against the audio, focusing on technical vocabulary.
- Fix the recurring terms. A subject-specific word misheard once is misheard every time, so a find-and-replace fixes a whole lecture at once.
You do not need to correct a lecture transcript line by line. Unlike an interview, nobody is being quoted. Get the terminology right so that searching works, and leave the rest.
Transcribe as you go
The mistake is saving it all for revision week. Transcribing after each lecture takes a few minutes and builds an archive that is searchable when you need it. Doing thirty lectures the week before an exam is both miserable and too late to be useful.
Turning a transcript into notes
A transcript is not notes. It is a complete record of everything said, including the digressions, and reading it start to finish is slower than having attended.
What works:
- Search it for the concept you are stuck on and read only that section.
- Pull the definitions out into your own notes, in your own words.
- Use the timestamps to jump back to the audio for anything the text alone does not make clear — tone and emphasis carry a lot in an explanation.
- Note what the lecturer repeated or slowed down for. That is the exam signal.
If you have an accommodation
If you have a disability-related accommodation for recording lectures, your institution's disability service may already provide transcription, and may cover the cost of a tool. Ask before paying for one yourself.