Two great examples of extracting unusual extra info from an old recorded signal. Does anyone know of more?
-
Show this thread
-
1. Retrieving full colour from a black-and-white recording of an old TV show (e.g. Doctor Who). The b&w recording has barely visible “chroma dots” that were unavoidable artifacts of transmitting colour signal – but now they can be used in reconstruction. https://en.wikipedia.org/wiki/Colour_recovery …pic.twitter.com/j1gvefNkS1
1 reply 45 retweets 114 likesShow this thread -
2. Recovering advanced teletext with more colors from an old VHS recording. The advanced teletext was supported by few TVs then (in 1995), but the work means it can be seen by more people now. http://text-mode.tumblr.com/post/182010051418/in-1995-some-countries-started-to-broadcast-a-new …pic.twitter.com/VCcNGgg2AC
4 replies 8 retweets 42 likesShow this thread -
Marcin Wichary Retweeted Adrian Holovaty
3. Apparently there are ways to recover sound based on vibrations of the objects in recorded video – great with high-speed camera, but can work even with regular 60fps video (and be used for spying!). (thx
@adrianholovaty)https://twitter.com/adrianholovaty/status/1085426605403660294?s=21 …Marcin Wichary added,
2 replies 1 retweet 12 likesShow this thread -
Replying to @mwichary @adrianholovaty
Some audio tracks were also extracted from old pictures of recordings https://mediapreservation.wordpress.com/2012/06/20/extracting-audio-from-pictures/ …
1 reply 0 retweets 0 likes
This is very cool.
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.