What is the difference between sound intensity and loudness?

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written 3.3 years ago by

Sound Intensity	Loudness
Sound intensity is a property of the sound source.	Loudness depends on the sound source, the medium and the receiver, as well.
Sound intensity holds a small significance in problems involving human hearing system	Loudness is a very important property to consider in human hearing system problems.
Sound intensity is measured in Watt per square-meter	Loudness is measured in Sones
The sound intensity is directly proportional to the square of the amplitude of sound wave.	It depends on amplitude. If the amplitude is high, the loudness also will be high.
Sound intensity or acoustic intensity can be calculated from the objective measurement of the sound pressure.	The loudness is a psycho-acoustic subjective feeling, which is difficult to measure.

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