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[–] mrtehol 0 points 2 points (+2|-0) ago  (edited ago)

As a sound and electronics enthusiast, as far as I can tell, that would be some serious spy type shit and not cheap. I assume you want to be able to talk to people but not sound like you to a microphone. So you either have to disable the mic or camouflage your voice. Disabling mics around you with sound cancellation would be obvious because this technology is never perfect, and people couldn't hear you then either. I saw you mention subsonic waves in replies, they require very large speakers and lots of power, and you can either feel them in your body or they are too slow to have any effect. Supersonic waves couldn't specifically target mics.

Electromagnetically speaking, any field strong enough to interfere with recording devices would almost certainly cause permanent damage to all complex electronics. It would also emit crazy radio interference and you would probably go to federal prison for operating such a device as radio frequencies are federally regulated and the signal you gave off would be both strong and easily triangulateable.

That leaves us with camouflaging your voice. Through technological means, real-time voice alteration is probably expensive if it exists at all. The only thing I can think of is maybe you could find an old acting teacher to train you to camouflage your voice through more traditional means. Probably not cheap though, or fast.

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[–] TheKobold [S] 0 points 2 points (+2|-0) ago 

Thank you for the serious reply. Im assuming a high pitch dog whistle like sound wpuld have the same problems as a subsonic sound?

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[–] mrtehol 0 points 1 point (+1|-0) ago 

It's a fun problem. A dog whistle like sound is a supersonic sound, so hi frequency instead of low frequency like subsonic. The problem with supersonic is that it is a form of energy that is so small and fast that it just goes through or bounces off of almost everything without affecting it, microphones don't even notice. The worst that supersonic can do when cranked to high energy output is heat stuff up. This heat would radiate from the device in a field and could not specifically target microphones. At least not without some SERIOUS engineering and money.