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Would it be possible to use the tech in noise-cancelling headphones and put a tiny speaker that phase-cancels audio it hears to solve this issue? I'm asking as
by kanobo 6y ago
Would it be possible to use the tech in noise-cancelling headphones and put a tiny speaker that phase-cancels audio it hears to solve this issue? I'm asking as someone who knows very little about this.
- kerkeslager 6y agoWell, it's definitely possible to do that but I'll make no claim that it would actually provide security. There's definitely some bleed-through with noise canceling (i.e. the beginning of sounds don't get canceled because the noise-canceling has a "reaction time"). It's probably better than nothing, but I would guess that a sophisticated-enough attacker could get around it. Again, I have no proof of concept here, so take with a grain of salt.
- dasudasu 6y agoThen you can hijack the noise canceling device and obtain the original signal. Also the canceling effect is likely never perfect, so there would still remain part of it going through.
- deleted 6y ago[deleted]