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Turn a lecture recording into a practice exam

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Much of what you need for an exam is said rather than written down: the explanation behind a slide, the example worked through in class. ExamTeX turns a lecture recording into a practice exam on that content. Record the lecture in your browser or upload the audio or video file, and get a typeset paper with worked solutions.

Short answer

How do I turn a lecture recording into a practice exam?

At examtex.com/create, choose “record a lecture” under the upload box to record in your browser, or upload the recording as an MP3, WAV, M4A, MP4, MOV or WebM file of up to 100 MB. ExamTeX writes exam questions on what was said in the lecture and returns a LaTeX-typeset exam you can edit and download as a PDF, with an optional answer key. Long recordings take a few minutes to process; the free plan includes 2 hours of lecture audio a month and Pro includes 20 hours.

How it works

1. Record or upload

Under the upload box, open “or record a lecture” and press Record your lecture (you can pause and resume), or upload an audio or video file of up to 100 MB. For a large video file, upload just the audio as MP3 or M4A.

2. Choose the format

Keep the recommended question mix or choose your own types and difficulty. Add the lecture slides or your notes to the same exam and the questions draw on both.

3. Edit, download, sit it

Review the questions in the editor and download the typeset PDF. Tick Include Answer Key to add the answers and worked solutions on separate pages at the end.

What to know

Browser recordings become reusable transcripts

A lecture you record in ExamTeX is transcribed and saved under Your recordings, and the audio file is deleted. Reusing a saved transcript for another exam or a flashcard deck does not use more of your audio allowance.

Uploaded files are used as audio

An uploaded recording is sent to the AI as audio for that exam. It is not saved as a transcript, so it counts toward your allowance each time you use it.

Counted by length

Lecture audio is metered by duration: 2 hours a month on the free plan and 20 hours a month on Pro or with the Exam Pass. YouTube videos count toward the same allowance.

Get permission to record

Recording other people can require their consent, and some schools have rules about it. ExamTeX shows a notice before your first recording; having any permission you need is your responsibility.

Frequently Asked Questions

Which audio and video formats can I upload?

MP3, WAV, M4A, MP4, MOV and WebM, up to 100 MB per file. A one-hour lecture saved as a 128 kbps MP3 is about 58 MB. Video files are often larger than the limit, so export just the audio track if needed.

How much lecture audio can I use?

The free plan includes 2 hours of lecture audio a month. Pro (€9.99 a month) and the Exam Pass (€9.99 once, for 30 days) include 20 hours a month. A browser recording uses the allowance once, when it is transcribed.

Will background noise or chatter end up in the questions?

The AI is instructed to use only the lecture itself (the lecturer and class discussion) and to ignore background noise and side conversations nearby. Recording close to the speaker still gives it the clearest audio to work from.

Can I record on my phone?

Recording runs in the browser, so it works on a phone whose browser allows microphone recording; keep the page open until you press Finish recording. If your browser does not support recording, ExamTeX says so, and you can upload a file from your phone’s voice recorder app instead.

Is it free?

You can try it free, without a card. The free plan includes 2 practice exams a month, with a watermark on the PDF, and generating from the built-in sample notes does not use one of them. Pro costs €9.99 a month for unlimited practice exams without the watermark; the Exam Pass gives you the same for 30 days for a one-time €9.99 and does not renew.

Related

Try it free — no card required

Record or upload a lecture. Long recordings take a few minutes to process.

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