What is unit of loudness ?
The loudness what is physically painful?
What is amplitude?
Answers
Answer:
The amplitude of a sound decides its intensity, which in turn is perceived by the ear as loudness. Loudness is the measure of response of the ear to the sound. Intensity is the sound power per unit area. Loudness is measured in decibels
1 ) Sone, unit of loudness. ... One sone is arbitrarily set equal to the loudness of a 1,000-hertz tone at a sound level of 40 decibels above the standard reference level (i.e., the minimum audible threshold). A sound with a loudness of four sones is one that listeners perceive to be four times as loud as the reference sound.
2 ) Humans have a hearing threshold of around 0 decibels. Above this threshold, sounds with higher sound pressure levels are heard as louder noises. ... Hearing becomes uncomfortable if the sound pressure level is above 110 decibels (threshold of discomfort), and it becomes painful above 130 decibels (threshold of pain).
3 ) The amplitude of a periodic variable is a measure of its change in a single period. There are various definitions of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values. In older texts, the phase of a period function is sometimes called the amplitude.