Your religious neighbor may have been wrong about the unholy message conceal in your new - fangled rock medicine , but researchers at Disney have figured out a very veridical agency to hide information within songs . In a new subject area , they excuse how the next concert or movie you go to could broadcast content to your speech sound through audio .
Disney publisheda conceptfor the engineering back in 2013 that focalize on beaming info to smartphones during movies , and you may do something alike with tools like Coagula . But the study ( PDF ) , presented earlier this month at a group discussion in Austria , gives us a small more information about how it works . It does n’t need any meshwork base whatsoever — no Wi - Fi , no radio frequencies . All you call for to receive it is a phone .
The team tested a telephone number of dissimilar methods of concealment data point in audio tracks , including spread spectrum concealment , which “ relies on pseudo - random sequences engraft as noise in the frequency orbit and exploit auditory mask to hide information in audio signaling . ” It also uses phase taunt to wangle “ the phases of several subbands in the frequency domain to encode a message . ” Their system of rules uses multiple smartphones in the audience to correct errors — your sound will join forces with your neighbors to make certain the broadcast follow through loud and clear .
Disney might be developing the tech for motion picture theaters and concert , but the team clear has its eye on far broader applications . “ In many parts of the existence , a dedicated internet infrastructure is not pragmatic or popular . Yet smartphones are popular and prevailing , ” the writer write in their decision .
This could be a cheesy , fast , and easy way to channelize information in places that have the phones , but not the web . Perhapsultrasonic malwareis a little closer than we think . [ Disney Research;New Scientist ]
result image : marutti .
DataDisney ResearchMusic
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