A ghost-hunter's tech toolkit

Before you start the next great poltergeist hunt, check out our skeptical look at what ghost-hunting gadgets supposedly reveal.

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White-Noise Generator

White-noise generators, which create a static sound by combining different audio frequencies, supposedly attract electronic voice phenomena when placed next to an EVP detector. Some ghost hunters claim that white noise provides a base to help filter out background sounds so that only spirit communication is received—but in actuality, radio and television transmissions still bleed through.

Image: Courtesy of Swiss Hearing Aids

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A ghost-hunter's tech toolkit

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