Two great examples of extracting unusual extra info from an old recorded signal. Does anyone know of more?
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4. Not quite new unexpected info, but re-running the tapes of lunar landings again to achieve higher quality and see meteor activity on the lunar surface more precisely. (Fascinating project!) (thx
@Infoseepage) https://www.computerworld.com/article/2525935/computer-hardware/the-lost-nasa-tapes--restoring-lunar-images-after-40-years-in-the-vault.html …pic.twitter.com/Xrx0CAtV6R
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5. Somewhat similar: playing back recorded audio that couldn’t be played back at the time because the tech didn’t exist yet – includes audio of a few people singing in 1860 (!). (thx
@multikev)https://www.economist.com/babbage/2011/07/12/the-written-sound …Show this thread -
6. Original copies of Mike Oldfield’s album “Tubular Bells” were made near a VLF transmitter and inadvertently contain a secret Morse code transmission – which someone only realized much later. https://hamgear.wordpress.com/2015/03/09/tubular-bells-and-vlf-interference/ … (thx
@yorgle)Show this thread -
7. Of course, in the modern world there are also parallel issues, such as this AOL snafu from a decade ago:https://www.cnet.com/news/aol-apologizes-for-release-of-user-search-data/ …
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Some audio tracks were also extracted from old pictures of recordings https://mediapreservation.wordpress.com/2012/06/20/extracting-audio-from-pictures/ …
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This is very cool.
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