Transcribing a university lecture

A transcript, a write-up and notes are three different things

A transcript is what was said, put in writing: word for word, hesitations and half-finished sentences included. A write-up is the same lecture rewritten so a person can read it — punctuation, paragraphs, an order, and nothing left out. Notes are the last step: what you need to remember, sorted by topic, with the parts that matter standing out.

Mixing up these three names is why so many transcription tools disappoint. They hand back the first thing and call it the third: a wall of words, technically correct and practically unreadable.

Most tools in this category skip straight from the first to a summary, which is a fourth thing again — shorter than the lecture by design. A summary is useful the evening before an exam and useless in March, when you need the definition your professor actually gave and the caveat they attached to it.

A faithful transcript is not study material: it is raw material. Someone has to work on it — which is what happens here, immediately after.

What you can upload

Audio recordings in mp3, m4a, wav, ogg, opus, flac and aac. That covers iPhone Voice Memos and the stock Android recorder, which is how very nearly every lecture actually gets recorded.

A plain .txt file works too, if the lecture is already written down or transcribed somewhere else: in that case the transcription step is skipped and everything else runs as usual. Slides, PDFs, images and video cannot be uploaded: here a lecture is either audio or text. That is a stated limit, not an oversight.

Long recordings do not need cutting up. A two- or three-hour lecture goes in whole, exactly as it came off the phone, and comes out as one document on the other side.

How it works, step by step

1. 1

   Open Alessandria and pick the course

   It opens in a browser, on a laptop or a phone: there is nothing to install and no API key to go and find. The course is the container — everything you put in it stays there, lecture after lecture.

2. 2

   Upload the recording

   Drag the file in, or pick it from your phone’s storage. On Android you can also send it to Alessandria from the Share menu of your recording app, without opening the upload screen at all.

3. 3

   Watch it work

   An hour of lecture becomes text in under three minutes. The transcript appears first and is saved immediately: from that moment it is yours, and it stays there even if something later goes wrong. Then the rest carries on by itself.

Leave the page open until it finishes: the work arrives in your browser as it goes. Other tabs are fine — just do not close the Alessandria one.

Three things decide how good the transcript is

No tool can write down a word that is not on the file. What goes in decides what comes out, and three small habits change the result more than any setting ever will.

• Distance. A seat in the first few rows is worth more than anything else. A phone at the back of the hall records the people around it, who are close, and not the lecturer, who is far away.
• Phone in the open. Inside a bag or under a notebook the audio comes out muffled. On the desk with the microphone clear is plenty — you do not need a dedicated recorder.
• The right microphone. If the lecturer is miked and the room has speakers, record near one. If the class is online, record the computer’s own audio instead of pointing a phone at the speakers.

One thing worth knowing in advance: proper nouns are the fragile part of every automatic transcript, everywhere. Authors, drug names and foreign terms said quickly are where they break. When a name stays uncertain, it is flagged in the notes as heard rather than quietly replaced with a name that merely sounds right.

What happens after the transcript

Here the transcript is minute zero, not the finish line. From the same file, without your asking for anything, come the full write-up of the whole lecture, notes sorted by topic, a glossary of the technical terms, a concept map, a timeline, quizzes and flashcards.

Once a course has a few lectures in it, the exam tools stop looking at one lecture and read the whole course together: a long-form summary, a mock exam, a scored multiple-choice quiz, a semester map, a course timeline, a deck of flashcards, a study plan for the days left and a five-minute briefing.

Everything stays sorted by course and by lecture, and you find it again by searching for a word. That is the difference between owning twenty transcripts in a folder and owning a course.

When a plain transcript is enough

It is worth saying plainly: you do not always need a tool like this. To find one sentence inside a ten-minute recording, the dictation already built into your phone does the job and costs nothing. Same for a seminar you listen to once and never open again.

The difference shows up over a course: twenty two-hour lectures, the same shape for all of them, as findable in November as in June. That is where a wall of untitled words becomes a problem, and where a raw transcript stops being enough on its own.