Used to measure the intensity of sound, what is a method of expressing the ratio between two values in a logarithmic fashion?

A decibel is used to describe sound intensity because its logarithmic nature matches the character of how the human ear hears. Many audio system parameters measure over such a large range of values that dB is used to simplify the numbers. Since it is logarithmic, if silence is 0 dB, than a sound 10 times more powerful is 10 dB, a sound 100 times more powerful is 20 dB, and a sound 1,000 times more powerful is 30 dB.

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