Can ChatGPT transcribe a lecture?
For a ten-minute seminar clip, yes. For a fifty-minute lecture, not in one piece. The single-request limit will stop a full lecture recording before it starts, so you split the file, get the transcript back in fragments, and lose the timestamps that would let you jump to the bit the exam actually covers. Revision is the use case, and timestamps are what make a transcript useful for revision.
Upload the whole recording, search it, click to hear any moment.
A full lecture, transcribed and searchable
- 1
Check your institution's rules
Many universities allow recording for personal study and some require you to ask the lecturer first. Accessibility provisions often make it a right rather than a request. Worth knowing before the first lecture, not after.
- 2
Record the whole thing in one file
Your phone's voice recorder is fine. Put it on the desk rather than in your bag, and close to the front if the room is large.
- 3
Split it if you are going the ChatGPT route
Fifty minutes of audio will exceed the size cap. Each fragment comes back as separate prose with nothing tying it to the moment it was spoken.
- 4
Or upload it whole and keep the timestamps
Hilite takes the full recording, returns a timestamped transcript you can search, and clicking a line plays that moment back. That is the version you can actually revise from.
Keep working inside the Hilite editor
Your uploaded files open directly in a focused editor view. Arrange your clips, preview the timeline, adjust transitions, and export when the track sounds perfectly right.
- Review the transcript in context
- Keep timestamps with the words
- Copy, export, or keep editing
Input formats
Output formats
Built for every kind of audio
Whatever you are making, this tool helps you get to a cleaner, more useful result, then hand off to Hilite to enhance and polish.
- Revision is search, not readingNobody reads a fifty-minute transcript end to end. You search it for the concept you did not follow, and then you want to hear how the lecturer explained it. Without timestamps the second half of that is impossible.
- Jargon is where accuracy dropsA lecture is dense with terms the model has the least context for. This is exactly where you need to check the audio, and exactly where a dead transcript leaves you stuck.
- Questions from the floor matterOften the most useful minute of a lecture is someone else asking the thing you were confused about. With no speaker separation, that exchange dissolves into the surrounding text.
Made for podcasters and their teams
Trim the dead air off the top and tail, and every recording is ready to edit, enhance, and publish.
FAQ
Common questions
If you do not see your question here, the support team replies within one business day.
- Not in a single upload. A fifty-minute recording at ordinary quality is well over the 25MB single-request limit, so it has to be split into parts and each part transcribed separately.
- Yes. Hilite transcribes a full lecture recording in the browser, free to start, with timestamps you can click to hear the moment and export as TXT, DOCX or SRT. It handles 99+ languages, which matters if you are studying in a second language.
- Policies differ by institution and sometimes by lecturer. Recording for personal study is commonly permitted and often guaranteed as an accessibility provision. Sharing or publishing the recording is a separate question and usually is not. Check your own institution's policy.
- Mostly, and not always. Subject-specific vocabulary, acronyms and names are the hardest part of any transcript. What matters is how quickly you can fix one, which is why a transcript linked to the audio beats a more accurate transcript that is not.
- Yes, and transcribe first. A summary built from a verified transcript is checkable. A summary built straight from audio is not, and a confident wrong summary is worse than no notes.
Revise from the lecture, not from memory
Upload the full recording and get a searchable, timestamped transcript. Free to start, nothing to install.