4 ms·
This has sort of been done with a flatbed scanner: http://www.cs.huji.ac.il/~springer/DigitalNeedle/index.html http://www.cs.huji.ac.il/~springer/DigitalNeedle/
by xhrpost 11y ago
This has sort of been done with a flatbed scanner: http://www.cs.huji.ac.il/~springer/DigitalNeedle/index.html http://www.cs.huji.ac.il/~springer/DigitalNeedle/index.html
- exhilaration 11y agoIt's also available commercially in the form of laser turntables: https://en.wikipedia.org/wiki/Laser_turntable https://en.wikipedia.org/wiki/Laser_turntable and http://www.laserturntable.com http://www.laserturntable.com
- mturmon 11y agoAnd don't miss the part about the IRENE system, at the bottom of your wikipedia page: http://irene.lbl.gov http://irene.lbl.gov It uses microphotography of the disk surface, somewhat similar to that in the OP. They have recordings as early as 1860!