lecture-to-notes: turning any combination of video, audio, slides, and photos into structured, traceable notes

Turning lecture videos into notes you'll actually revisit: lecture-to-notes is now open source

A while back on Facebook, I shared the results of using AI to organize lecture videos. I got an unexpectedly huge response, and people kept asking when I’d release the tool. I’ve spent some time cleaning it up, and today it’s officially open source: lecture-to-notes. Key takeaways from this post Why everyone records lectures, but nobody goes back to finish watching them Notes don’t have to be shaped like “text + pictures”: video, transcript, and summary synced on one page Bring whatever you have: video, audio, slides, photos, all connected to the same timeline A few technical insistences: the transcript never automatically changes words, timing uses evidence instead of guessing Why OCR alone isn’t enough: how to tell if textless flowcharts and ultrasounds are important Fallback options for running without an NVIDIA GPU The forest of tripods at the back of the classroom I’ve always found physical medicine and rehabilitation (PM&R) lectures hard to take notes on. For classes like manual therapy and musculoskeletal ultrasound, the knowledge is hidden in the “movements.” You can’t capture it no matter how much text you write down. So the venue is always packed with tripods. Everyone’s recording, planning to review it later over a meal. ...

August 3, 2026 · 10 min · 1920 words · 陳柏威 Po-Wei Chen
Note template on the left, actual notes generated by the system using the template on the right, with every claim cited

Cross-Textbook Automated Note-Generation Workflow: A Product of the Board Examination

Origin I’ve loved taking notes since medical school and have accumulated thousands of medical notes over the years. But honestly, with information so easy to get and so much to learn now, it’s become hard to keep every note at the same quality using my own structure. On the other hand, in an era of ever-increasing information, trustworthy, high-quality sources have ironically become precious, which makes textbooks a great source of information. However, there are over forty designated reference books for the physical medicine and rehabilitation (PM&R) board examination, and the same concept might be scattered across different chapters in several books. Actually reading through all of them is almost impossible. ...

July 19, 2026 · 7 min · 1479 words · 陳柏威 Po-Wei Chen