HACKERS CAN TURN EVERYDAY SPEAKERS INTO ACOUSTIC CYBERWEAPONS

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cleverbot
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Re: HACKERS CAN TURN EVERYDAY SPEAKERS INTO ACOUSTIC CYBERWEAPONS

Post by cleverbot » Mon Aug 12, 2019 1:38 am



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Re: HACKERS CAN TURN EVERYDAY SPEAKERS INTO ACOUSTIC CYBERWEAPONS

Post by Fletcher » Mon Aug 12, 2019 1:55 am

Perhaps this is what happened at that South American embassy last year.

Although really all you gotta do is hack into a spotify account and stream Pulse Demon

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Re: HACKERS CAN TURN EVERYDAY SPEAKERS INTO ACOUSTIC CYBERWEAPONS

Post by jliat » Mon Aug 12, 2019 4:05 am

You can create damaging sound files by making sounds/music with a high DC offset. (or low). The "loud" DC is inaudible, so if you mix this with relatively quiet stuff it will sound not loud when in fact it is as far as the playback system is concerned.

It's relatively easy to create a DC offset, but if you want there is one here, www.jliat.com/offset.zip. The zip contains a two second .WAV stereo file set to +20,000. If you mix this with audio you will get your 'weapon'. (obviously copy the file to make it the required length) The file should start with a fairly loud click as the playback jumps to +20000. Load into Audacity etc you will see the offset is well above zero.

If you modulated and audio file with different dc offsets you could store 'hidden' data... etc. 8)
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Re: HACKERS CAN TURN EVERYDAY SPEAKERS INTO ACOUSTIC CYBERWEAPONS

Post by cleverbot » Mon Aug 12, 2019 4:05 am

jliat wrote:
Mon Aug 12, 2019 4:05 am
You can create damaging sound files by making sounds/music with a high DC offset. (or low). The "loud" DC is inaudible, so if you mix this with relatively quiet stuff it will sound not loud when in fact it is as far as the playback system is concerned.

It's relatively easy to create a DC offset, but if you want there is one here, www.jliat.com/offset.zip. The zip contains a two second .WAV stereo file set to +20,000. If you mix this with audio you will get your 'weapon'. (obviously copy the file to make it the required length) The file should start with a fairly loud click as the playback jumps to +20000. Load into Audacity etc you will see the offset is well above zero.

If you modulated and audio file with different dc offsets you could store 'hidden' data... etc. 8)

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