Earliest gramaphone audio recreated from a photo of the disc

An audio historian has found the means to recreate the audio from *photographs* of gramaphone discs!
A10anissays...

I seem to recall that a potter, creating a pot would inadvertently transfer any vibrations- speech etc- through his fingers to the rings created whilst working, and that these could be "played back." Imagine being able to listen to someone discussing life in, say, ancient Rome, Greece, etc. I only hope I didn't just dream this.

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