Lectures convert better than most video
Lecture audio is usually clean: one speaker, near a microphone, with structured slides driving the narration. Transcription accuracy commonly hits 97-99% on this kind of content. The output Markdown breaks at topic shifts and preserves any spoken section markers.
Combining with slides
Most lectures pair audio with slide decks. Convert the lecture video on this page, then convert the slide PDF on PDF to Markdown for Students. Combine both in your study notes — the transcript for the explanation, the slides for the diagrams and bullet structure.
From transcript to flashcards
Once you have the Markdown, ask Claude or ChatGPT to "generate Anki-style flashcards from this lecture transcript". Paste in the .md. Within a minute you have study cards covering every concept the professor explained.