DTNS 2293 – Video Vibrations Killed the Audio Privacy

Ken Denmead is on the show. We’ll chat about how MIT researchers can reconstruct audio from a bag of potato chips behind soundproof glass. Also a little on the overreaction to NASA and the propellant-free microwave drive.


A special thanks to all our Patreon supporters–without you, none of this would be possible.
If you enjoy the show, please consider supporting the show here at the low, low cost of a nickel a day on Patreon. Thank you!

Big thanks to Dan Lueders for the headlines music and Martin Bell for the opening theme!
Big thanks to Mustafa A. from thepolarcat.com for the logo!
Thanks to our mods, Kylde, TomGehrke and scottierowland on the subreddit

Show Notes
Today’s guests: Ken Denmead, Grand Nagus at GeekDad.com

News From You:
  • tm204 submitted the MIT News post that researchers from MIT, Microsoft and Adobe will present findings at SIGGRAPH on how to reconstruct audio from video of certain objects. One experiment recorded video of a potato chip bag from 15 feet away behind soundproof glass. An algorithm interprets minute vibrations on the bag to reconstruct the audio. While most of the experiments required high quality video of up to 6,000 fps to detect the vibrations, the researchers also figured out how to exploit sensors in 60fps consumer camera, to detect lower quality but still usable audio. None of the experiments could interpret the audio in real time. One capture took two hours to process. 
  • Hurmoth posted the Ars Technica article that Aereo is still fighting. We know Aereo argues they should be allowed to pay the compulsory license to continue operating. Another argument asks permission to continue to provide recorded video since in oral arguments the Supreme court indicated that did not violate Plaintiffs’ public performance rights. While US District Judge Alison Nathan rejected Aereo's emergency motion on these arguments, she ordered both sides to file papers in support of their positions over the next five weeks.
  • SpydrChick pointed out the Dvice story that the IEEE has released a new official standard for 802.22 that can cover 12,000 square miles. The standard is designed to take advantage of spectrum from 54MHz to 698MHz opened up by the shutdown of analog TV. In theory the standard will supposedly be able to broadcast data at up to 22 Mbps 62 miles from a single base station over WRANs (wireless regional area networks).
  • MacBytes passes along an Engadget reports that the DAWN OF THE ROBOTIC EXOSKELETON IS UPON US! Sort of. South Korean carmaker Daewoo has been testing a robotic suit that allows shipyard workers carry objects as heavy as 66 pounds with ease by putting all the load on the machine at least for three hours the battery lasts. Daewoo hope that the exoskeleton will eventually hold up to 220lbs, just as soon as they figure out how to cope with slippery floors and twisting movements. So no moonwalking in the exoskeleton, people.
Pick of the Day: Pluto.tv via Chris

Hey Tom and Jennie, love the show. Just discovered pluto.tv - a cool app to watch video online. Over a hundred curated channels in a nicely organized channel guide for that “lean back” experience. Now with chromecast support on Android, this is a nice pick for folks just looking for a variety of queued specialty content online. I can’t speak for the rights clearances or how these channels are legally vetted but I thought it was worth sharing… maybe something of interest for the cordkillers podcast as well.

Plug of the Day: The Sword and Laser Anthology collects 20 amazing stories from new writers in the Sword and Laser book club audience. 10 SciFi and 10 fantasy stories with an introduction by Patrick Rothfuss. Get a copy at swordandlaser.com/store

Wednesday’s guest: Jessica Naziri