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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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14y ago
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6y ago

Loudness is the quality of a sound that is the primary psychological correlate of physical strength (amplitude). Loudness is a subjective measure, which is often confused with objective measures of sound pressure as a sound field quantity. The sound intensity or acoustic intensity as a sound energy quantity is defined as the sound power per unit area. The usual context is the noise measurement of sound intensity in the air at a listener's location.

The ear responds to an enormous range of intensities. At 3000 Hz, the lowest intensity that the human ear can detect is about . The loudest tolerable sound has an intensity of about . These two extremes of the intensity range are called the threshold of hearing and the threshold of pain, respectively. Sound intensities above the threshold of pain may cause permanent damage to the eardrum and the ossicles. The ear does not respond linearly to sound intensity; that is, a sound which is a million times more powerful than another does not evoke a million times higher sensation of loudness. The response of the ear to intensity is closer to being logarithmic than linear. Because of the nonlinear response of the ear and the large range of intensities involved in the process of hearing, it is convenient to express sound intensity on a logarithmic scale. On this scale, the sound intensity is measured relative to a reference level of (which is approximately the lowest audible sound intensity). The logarithmic intensity is measured in units of decibel (dB).

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Q: What is the difference between loudness and intensity?
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Related questions

What is Distinguish between intensity and loudness?

the Decibel it measures the loudness and intensity


What is the relaationship between loudness and sound intensity?

Loudness is the colloquial term and intensity is the scientific term. More the intensity higher the loudness. Same way in case of light, higher the intensity of radiation, we call colloquially that as more brightness.


What is the difference between intensity and pitch?

pitch is the tone of the note/ssong. (high or low) intensity involves speed, loudness, business and strength in a piece


Is the loudness of a sound is called its intensity?

Yes the loudness of a sound is called its intensity.


The loudness of a sound wave is determined by its?

By its amplitude. Really loudness is sound intensity & intensity depends on square of amplitude ie. higher the amplitude higher the intensity which means higher the loudness.


What is different between loudness and intensity?

Loudness of sound: Loudness is that characteristic of sound by which we can distinguish between a loud and a faint sound.It depends upon amplitude, area of vibrating body, intensity and condition of ear. Intensity of sound: Sound energy flowing per second through a unit area held perpendicularly to the direction of sound waves is called the intensity of sound.Its unit is W/m2.


WHAT IS The loudness of sound called?

Intensity


What is the loudness or the softness of sound?

intensity :)


The loudness of a sound is a reflection of?

intensity


The loudness or strength of a sound is its?

intensity. :)


Compare and conyrast loudness and intensity?

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.


Loudness and pitch while intensity and frequency are?

Loudness and pitch means amplitude and frequency.