What does loudness measure?

Answer 1

The quality or state of being loud.

Answer 2

The unit of loudness is the decibel (dB). The decibel is a logarithmic unit, meaning that if the decibel rating doubles, it equates to a tenfold increase in amplitude of the sound wave. There are commercial devices sold which can be used to measure sound in decibels at a particular location.

Answer 3

Loudness is a subjective measure, which is often confused with objective measures of sound prtessure such as decibels or sound intensity. Filters such as A-weighting attempt to adjust sound measurements to correspond to loudness as perceived by the average human. However, as the perception of loudness varies from person to person it cannot be universally measured using any single metric. Loudness is also affected by parameters other than sound pressure, including frequency and duration. In acoustics volume is related to amplitude, sound pressure, and dynamics.

There is subjectivly perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power).

Scroll down to related links and look at "All about loudness".

Answer 4

Loudness or volume is measured in decibels (dB) The decibel is a logarithmic unit. The average decibels of traffic, for example, are 85 decibels. See the link for a chart on loudness of various things in decibels.

Answer 5

Loudness can be measured by a sound pressure level meter.
Loudness is a subjective measure, which is often confused with objective measures of sound prtessure such as decibels or sound intensity. Filters such as A-weighting attempt to adjust sound measurements to correspond to loudness as perceived by the average human. However, as the perception of loudness varies from person to person it cannot be universally measured using any single metric. Loudness is also affected by parameters other than sound pressure, including frequency and duration. In acoustics volume is related to amplitude, sound pressure, and dynamics.

There is subjectivly perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power).

Scroll down to related links and look at "All about loudness".

Answer 6

Decibel units (Db) not sure on the abbreviation it might be all lower case but yeah Decibels. xD

Answer 7

The loudness of sounds is usually measured in decibels, but for certain purposes sound pressure in pascals is more appropriate.

Answer 8

Loudness and signal strength are measured in decibels. The unit was devised by Bell Labs and named after Alexander Graham Bell.

Answer 9

The unit of measurement for loudness is in decibels. Human hearing damage/lose can be sustained by long or repeated exposure to levels above 85dB.