Yes the loudness of a sound is called its intensity.
Loudness increases with increasing amplitude of the sound wave, also called increasing sound pressure.
decibels
Bel or decibel.
Units used to measure loudness are Sone (loudness N) and Phon (loudness level L). Scroll down to related links and look at "Loudness - Wikipedia" and "Sound level change and the change of the respective factor of volume and loudness"
loudness
decibels
Just like any other substance in existence, the magnitude of sound or loudness can also be measured. In this case, the standard unit of measurement for loudness is called decibels.
The amplitude determines the loudness of a sound wave.
The amplitude determines the loudness of a sound wave.
The loudness of sound is also known as volume.
Feelings of loudness are different from person to person. So don't talk of "measuring" the "loudness".For psycho acoustic values we have units to express loudness:Sone (loudness N) and Phon (loudness level L).You can really measure the sound pressure with a sound pressure level meter. That is measured in dB SPL. Loudness is a subjective measure but sound pressure is an objective measure. But that is different. Don't mix it up. Scroll down to related links and look for more on decreasing of sound pressure with distance.