6 ms·

If I'm not mistaken, smart TVs can still communicate by via inaudible sound signals directly to other devices. Spooky.

• kossTKR 5y ago
  Really? That's dystopian, but in a cool way. A little like Amazons own internet sharing network or what it was. It's terrible though. We really live in a panopticon now. Any links?
  • foepys 5y ago
    https://arstechnica.com/information-technology/2017/05/theres-a-spike-in-android-apps-that-covertly-listen-for-inaudible-sounds-in-ads/ https://arstechnica.com/information-technology/2017/05/there... Be careful which apps you allow to use your phone's microphone.
  • r3trohack3r 5y ago
    https://arstechnica.com/tech-policy/2015/11/beware-of-ads-that-use-inaudible-sound-to-link-your-phone-tv-tablet-and-pc/ https://arstechnica.com/tech-policy/2015/11/beware-of-ads-th... Not exactly the TV manufacturer doing it, but there have been reports of advertisers using ultrasonic pitches to do cross-device tracking.
  • crysin 5y ago
    https://en.m.wikipedia.org/wiki/Cinavia https://en.m.wikipedia.org/wiki/Cinavia Slightly different than what gp was talking about but also deals with using invisible audio for DRM
    • benttoothpaste 5y ago
      Audio is usually invisible