Posts tagged how decibels work
Making (a bit of) sense of decibels

A basic principle of noise measurement which all newbies to the subject should be aware of is that the decibel scale was invented by someone who had just spent a long long weekend taking a wide variety of illegal drugs. It only makes sense to maths geniuses and to the rest of us it is a touch bonkers. It is a logarithmic scale which means 2 plus 2 doesn't always equal four, that would be too easy. 

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