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Siren Silencer – listens and plays back exact inverse of the waveform to quieten things down

by Jimbo Apr 6, 2020 4 Comments 4 Links

#emergency, #gadgets, #noisepollution, #peace, #pollution, #quiet, #siren, #tannoy, #tranquility,

Siren Silencer – listens and plays back exact inverse of the waveform... Read more

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