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I is the sound intensity; I 0 is the reference sound intensity; 1 Np = 1 is the neper; 1 B = 1 / 2 ln(10) is the bel; 1 dB = 1 / 20 ln(10) is the decibel. The commonly used reference sound intensity in air is [5] = /. being approximately the lowest sound intensity hearable by an undamaged human ear under room conditions.
intensity: watt per square meter (W/m 2) sound intensity: watt per square meter (W/m 2) electric current: ampere (A) moment of inertia: kilogram meter squared (kg⋅m 2) intensity: watt per square meter (W/m 2) imaginary unit: unitless electric current: ampere (A) ^ Cartesian x-axis basis unit vector unitless
In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. ... Sound intensity
In physics and many other areas of science and engineering the intensity or flux of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.
v = speed of sound, ... Sound intensity Ω = Solid angle ... Physics for Scientists and Engineers: With Modern Physics (6th ed.).
Sound intensity I, SIL Sound power ... In physics, sound energy is a form of energy that can be heard by living things. Only those waves that have a frequency of 16 ...
In a sound wave, the complementary variable to sound pressure is the particle velocity. Together, they determine the sound intensity of the wave. Sound intensity, denoted I and measured in W·m −2 in SI units, is defined by =, where p is the sound pressure, v is the particle velocity.
Loudness, a subjective measure, is often confused with physical measures of sound strength such as sound pressure, sound pressure level (in decibels), sound intensity or sound power. Weighting filters such as A-weighting and LKFS attempt to compensate measurements to correspond to loudness as perceived by the typical human.