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Formula for Measuring Sound and Loudness

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The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is relative to (a ratio of) the weakest sound the ear can hear.

How is sound measured? Can you also include the following items in your posting:
- The formula for measuring sound.
- Pick a specific sound, give the decibels of the sound, and explain what this measurement means.

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Solution Summary

The formula for measuring sound is discussed. Links are included in the explanation.

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Sound is measured by sound intensity, which is defined as the sound power per unit area. The usual context is the measurement of sound intensity in the air at a ...

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