inventor Alexander Graham BellAlexander Graham Bell, a decibel (dBA) is the unit used to express the intensity of sound. It is normally measured using the “A” scale, which approximates the human ear’s response to a wide range of frequencies. A decibel is a logarithmic value to the base 10.
What is the meaning of dB?
The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale.
What does dB stand for decibels?
What Does Decibel (dB) Mean? A decibel (dB) is a unit that is used to measure the power or intensity of an electrical signal or audible sound. It is measured as a comparison to a given level on a logarithmic scale. The greater the number, the higher the energy of sound.
Who is the founder of decibel?
Ben Harris is the founder and CEO of Decibel.
What is meant by zero bel?
The threshold of hearing is zero bel (10^-12 watts per square meter). Sound intensity is often measured in decibels and rarely in bels. The decibel unit is denoted by the abbreviation dB and is often referred to by people using it as ‘dee-bees. ‘
What is a dB police?
Police abbreviation DB means Dead body.
How do you spell dB?
Other definitions for Db (3 of 5)
Physics. decibel; decibels.
How many decibels is the human voice?
A whisper is about 30 dB, normal conversation is about 60 dB, and a motorcycle engine running is about 95 dB. Noise above 70 dB over a prolonged period of time may start to damage your hearing.
What is the decibel level of a gunshot?
How loud is a gunshot? Decibel levels for firearms average between 140 and 165 dB.