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I'm assuming this won't work on desktop computer if one does not have a mic.
by alecsmart1 13y ago
I'm assuming this won't work on desktop computer if one does not have a mic.
- Tarang 13y agoNot necessarily, the desktop computer needs a speaker & the mobile device needs a mic (which is a better arrangement since the smartphone mics are extraordinarily good). This could then be a means to establish a network connection to it by other means.
- mrtksn 13y agoActually, it's the other way around. On the demo video the presenter says "the audio signal is transmitted from the computer to the phone". here at 2:15 : http://www.youtube.com/watch?v=X5I6qV2b5iw http://www.youtube.com/watch?v=X5I6qV2b5iw I am more curious about if the phone has to be always listening and what happens if there is noise in the environment. Also what if the attacker manages to bring a recording device close enough? Is the distance important because of the amplitude or because of the delay due to the speed of sound?
- chockablock 13y agoThen there's an error in the linked article, which reads: "... [it works] by playing an ultrasonic frequency from the mobile device. The system on the computer or any other device analyses the frequency for identification..."
- councilscheme 13y agowhat good would recording be if the audio has a timestamp in it?
- mrtksn 13y agowhat if the attacker transmits the audio in real time?
- deleted 13y ago[deleted]