Just watched the die hard 4 movie. Ofcourse the whole city got knocked out and the hero had to get through it all. But I need to know. Does it make that thumping sound if electricity goes out for another block or city area. Same goes for lights going on in huge ass secret government storage facilities. Dang!!
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There are certain elements of the power grid that will change in sound when they are unpowered, but for the answer you are looking for is *no*. The sounds ‘made’ are just the constant sound of electrical elements (transformers, converters, anything exposed to a high AC current at 60 Hz will make a 60 Hz sound, which is a low droning noise most of us are used to ignoring) suddenly turning off.
So the ‘almost accurate Hollywood’ version of this effect involves suddenly increasing the previously ignored noise, and then focusing on it as the noise decreases or disappears. Often they’ll throw in a metallic click, something we’ve come to associate with a big switch being thrown, because that’s what we expect when we see the lights turn on/off.
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