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

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 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?