Quote:
Originally Posted by seifrob
... The dB rating differs by 1 to 2 dB in different tires, but this is no surprise as - iirc - being 6 dB less loud means that you are making half the noise.
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Close... interesting... "the logarithmic decibel scale goes up in powers of ten: every increase of 10dB on the scale is equivalent to a 10-fold increase in sound intensity (which broadly corresponds with a doubling in loudness)."
How decibel sound level meters work - Explain that Stuff