how loud is the train scale 1to10 where 10 is the loudest
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The dB rating is not just “how loud it sounds.” Rather, each extra 10 dB means the sound is 10 times as intense. The rule of thumb from last time means, that it is perceived to be (“sounds”) roughly 2 times as loud. Therefore, 60 dB is perceived to be about 2×2×2=8 times as loud as 30 dB
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7....
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