Slashdot Mirror

← Back to Stories (view on slashdot.org)

Audio Watermarks Could Pinpoint Film Pirates By Seat

Posted by timothy on from the also-look-for-the-glowing-red-lights dept.

Slatterz points out a brief mention at PC Authority of a story at Torrent freak about using watermarking embedded in movies' soundtracks to reveal the exact location of camera-wielding bootleggers in a theater; the inventors (here's an abstract of their paper) claim it's accurate to within 44 centimeters.

4 of 336 comments (clear)

  1. What good does this do? by Aranykai · · Score: 0, Redundant

    If you know what seat they are in days after they filmed it and released it, what good does it really do you? Ive never seen a theater with assigned seating before.

    --
    If sharing a song makes you a pirate, what do I have to share to be a ninja?
  2. Point? by the_enigma_1983 · · Score: 0, Redundant

    What's the point to this? Unless I'm mistaken (and I did RTFA), they will only be able to work out where the person sat if they listen to the recording. That means either a) they've already caught them, or b) they've managed to leave the cinema, go home, compress and upload the film. Do cinemas in the US record full ID of every person attending, including what seat they sat at?

  3. Comment removed by account_deleted · · Score: 0, Redundant

    Comment removed based on user account deletion

  4. Re:Useless Information by daBass · · Score: 0, Redundant

    You sure you are not confusing this with the dots 15 seconds and 1 second before a reel splice? Note the next scene change will be a hard cut of both audio and video, no wipes or fades.