On: 78rpm Records Digitized

[Gregordinary]

The title sparked a memory of someone using a flatbed scanner and some software back in 2002 to extract audio from scanned images of record tracks.

https://www.cs.huji.ac.il/~springer/DigitalNeedle/index.html

Results were interesting though fairly unintelligible. Practicality aside, wonder if/how much this method could be improved today?