Turn a lecture recording into flashcards, checked against your material
Upload a lecture recording and QuerySpark writes flashcards from what is actually in it, so you can drill the key terms on exactly what your course covers. MP3, M4A, WAV, MP4, WEBM and more, up to 25 MB.
Example
Flashcards from PSY 100 lecture
A sample of what you get from a lecture recording on psychology. Yours is written from your own file.
Extinction
The fading of a conditioned response when the CS is repeatedly presented without the US
Variable-ratio schedule
Reward after an unpredictable number of responses; very resistant to extinction
Shaping
Reinforcing successive approximations of a target behavior
How we read lecture recordings
We transcribe the audio with Whisper, which also pulls the audio track out of video files, then write questions from the transcript so you can study a lecture you only half heard.
Get the best results
- Record in mono at a modest bitrate; speech does not need music quality.
- Pair the recording with the slides for the richest set.
What your flashcards include
- Term and definition cards for every key concept
- Concept cards that ask why and how, not only what
- Cards sized to your material: a short reading gets a short deck
- Spaced repetition built in: no deck settings to configure
How you study them
Flip, rate how well you knew it, and move on. Cards you find hard return sooner; cards you know well fade out until just before you would forget them.
Best for: vocabulary and definitions, formulas and dates, daily ten-minute review.
Things that trip people up with lecture recordings
- Recordings over 25 MB need splitting or compressing first (a 60 minute lecture in mono MP3 at 48 kbps fits).
- Lecture-hall echo and distance from the speaker reduce accuracy. Sit near the front or use a clip-on mic.
- Apple .mov files are not accepted. Convert to .mp4 or export the audio.
Questions about lecture recording to flashcards
Can I record a live lecture?+
Record it with your phone's voice memo app and upload the file afterwards. Check your school's recording policy first.
Does it work for other languages?+
Whisper transcribes most major languages; questions are written in the language of the lecture.
Can I export to Anki or Quizlet?+
Yes. Export any deck as CSV, which both Anki and Quizlet import.
Is the lecture recording to flashcards converter free?+
Yes. You can try it free with a 3-day Pro trial and no credit card, then keep using the free plan every month.