I decided to dig this one up since there is a bunch of patents (free) listed on the Wiki page now.
Laser turntable - Wikipedia, the free encyclopedia
If I had the time, this would be a worthwhile project.
Laser turntable - Wikipedia, the free encyclopedia
If I had the time, this would be a worthwhile project.
On 11th March 2010: "I suspect an easier method would be to 'watch' the LP groove through a microscope with a CCD image sensor, and decode the variable image with software. Not analogue enough, perhaps?"
Something like this?
(IRENE/3D and 2D Tool)
An explaining video:
(How Edison Got His Groove Back)
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