How to Transcribe Recorded Lectures Into Study Notes (Student Guide)

A 90-minute lecture runs to about 12,000 words. Copying that by hand is impossible, and taking notes while you listen means you miss details. Recording the lecture and transcribing it with AI gives you the full text in minutes; your job becomes the part that actually gets you through exams: summarizing and organizing.

Before you record: ask

Many universities only allow lectures to be recorded for personal use, and some require you to ask the lecturer. Check at the start of the term. Recordings and transcripts are for studying, not for publishing.

How to record so the transcript comes out well

Accuracy depends mostly on the audio. These four things make a real difference:

1. Sit close to the lecturer, or leave your phone on their desk if they're fine with it. Distance is what hurts audio most.
2. Put your phone in airplane mode to avoid interference and calls cutting the recording.
3. Use your phone's recorder app (Voice Memos on iPhone, Recorder on Android) or record straight from the browser with the Record button on the site.
4. For online lectures, record from the platform itself (Zoom, Teams, Google Meet) if allowed: the audio is clean, with no classroom noise.

Transcribing the lecture step by step

1. Open the lecture transcription tool and upload the recording. MP3, M4A, WAV, MP4 and almost any format work, up to 2 GB.
2. Pick the lecture's language. If it's in Spanish or another language, select it: the transcript comes out in the original language.
3. In a few minutes you get the text with a timestamp for every sentence.

The first 15 minutes are free so you can check the quality with your own recordings. For reference, 300 minutes (about three 90-minute lectures) costs $19, and minutes never expire, so you can buy as you go.

From transcript to study notes

A transcript isn't notes yet: it's the raw material. This method works well:

1. Quick first read: jot down the concepts the lecturer repeats or dwells on, with their timestamp. Those are usually the ones in the exam.
2. Fix only what matters: author names, formulas and technical terms. Click the sentence to hear it and correct it on the spot.
3. Split it by topic: use the timestamps to find where each part of the lecture starts and give it a heading.
4. Summarize each topic in 5–10 lines in your own words. Writing it yourself is what makes it stick.
5. Download it as Word and add the diagrams and whiteboard notes.

Keep the full transcript next to your notes: when something doesn't make sense, search for the word and you get the exact context, with the minute to listen again.

Lectures in another language

If you're studying abroad or taking a course in a second language, a transcript helps twice over: you read at your own pace, look up words you don't know and go over the hard parts sentence by sentence. Pick the lecture's language before transcribing for better accuracy.

FAQ

Does AI understand formulas and technical terms? It handles each subject's usual vocabulary very well. Formulas read aloud are transcribed as words ("x squared"), so fill them in from what was written on the board.

What if the lecture is two hours long? No problem: you can upload files up to 2 GB, which is many hours of audio.

Can I share the transcript with classmates? Yes, with each transcript's read-only link, as long as the lecturer allows the content to be shared.

If you also need to transcribe interviews for your dissertation, see our guide on how to transcribe research interviews.