Audio to Practice Test
Turn Any Lecture Recording Into an AI-Graded Exam
Upload your audio lecture recording and Learnlo transcribes it, extracts the key concepts, and builds a full AI-graded practice test — written answers, partial credit, and a concept mastery report. Exam-ready in about 90 seconds.
No signup required · Free to try
You recorded the lecture. Now actually learn from it.
Most students record lectures with the best intentions and never listen back. And even if they do, passive listening doesn't build the kind of recall you need on an exam. You need to test yourself — and you need a test that comes from the actual lecture, not generic questions.
Learnlo converts your lecture recording into a complete study pack and AI-graded practice exam. Upload once, get everything.
Before Learnlo
A folder of lecture recordings you vaguely planned to listen to again before the exam
After Learnlo
A written-answer exam from the actual lecture that identifies which concepts didn't stick
From Recording to Exam in 4 Steps
Upload your lecture recording
MP3, WAV, M4A, or other common audio formats. Up to several hours per recording.
Learnlo transcribes and extracts concepts
Whisper-powered transcription converts your audio to text. Key concepts and topics are identified automatically.
Take the practice exam
Written-answer questions from the lecture content. Answer in your own words — AI grades with partial credit and feedback.
Review your concept mastery report
Per-concept mastery scores show you which parts of the lecture you retained and which you need to revisit.
Questions from the Actual Lecture — Not Generic Topics
The practice exam is built from what your professor actually said, with the examples and emphasis points from your recording.
Example — AI Exam Grading
Question
The professor discussed three mechanisms by which cortisol suppresses inflammation. Name and explain at least two.
Student Answer
Cortisol reduces prostaglandin synthesis by inhibiting phospholipase A2. It also reduces the production of cytokines like IL-1 and IL-6.
AI Grading Feedback
9 / 10Excellent answer for two mechanisms. You correctly identified phospholipase A2 inhibition and cytokine suppression. The third mechanism the lecture covered — upregulation of lipocortin (annexin) proteins that further inhibit arachidonic acid release — was not included but earns full marks for the two you described.
Frequently Asked Questions
What audio formats does Learnlo support?
MP3, WAV, M4A, OGG, FLAC, and most common audio formats. Standard lecture recording formats from phones, laptops, and digital recorders all work.
How long can my recording be?
Learnlo can handle recordings up to several hours. Longer recordings may be trimmed to the most content-dense segments within your plan's transcription limit. Free accounts include 15 minutes of audio per month; Plus gets 200 minutes; Pro gets 400 minutes.
What if the recording quality is poor?
Learnlo uses Whisper for transcription, which handles imperfect audio reasonably well. Background noise, distant microphones, and accents are generally handled. Very low quality or heavily distorted recordings may produce less accurate transcripts.
Are the exam questions from the lecture or from general knowledge about the subject?
From the lecture. Learnlo generates questions based on the specific content your professor or instructor covered — the explanations, examples, and emphasis points in your recording.
Can I get a full transcript of my lecture?
The pack includes organized notes extracted from the lecture, which include the main points and key explanations. A raw full transcript is not exported directly, but your notes cover the important content.
Can I use recordings from Zoom or Teams lectures?
Yes. Export the audio track from your Zoom or Teams recording and upload the audio file. Most meeting platforms allow you to download recordings that include audio.
Do I need to sign up?
No. Guest users can upload an audio recording and get a full study pack including the practice exam without creating an account.
Related Tools
YouTube to Practice Test
Exam from YouTube lecture videos
Lecture Recording to Study Guide
Full study pack from your recordings
Practice Test from Notes
Exam from written notes or PDF
Knowledge Gap Finder
Concept mastery map after your exam
Audio to Notes
Organized notes from any audio file
AI Practice Exam Generator
Core exam generation feature
Your Recording Has an Exam in It. Let's Find It.
Upload any lecture audio and get a full AI-graded practice exam in 90 seconds. No signup required.
Generate Exam from My Recording FreeNo signup required · Free to try