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. …

2025年1月9日 · decibel (dB), unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds. One …

2023年9月7日 · Decibels (abbreviated dB) are the units used to measure the relative intensity of a sound. The decibel unit of measurement is a little odd because the human ear is incredibly …

The decibel (dB) is a unit that expresses the ratio of two values of a physical quantity, often power or intensity. One decibel is one-tenth of one bel, a unit named in honour of Alexander Graham …

Decibel (Symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of acoustic waves and electronic signals. The logarithmic scale can describe very big …

The meaning of DECIBEL is a unit for expressing the ratio of two amounts of electric or acoustic signal power equal to 10 times the common logarithm of this ratio. How to use decibel in a …

A decibel (or dB) measures ratios of power or intensity. It expresses them as an exponential function. One bel is a power ratio of 10:1, and is divided into ten decibels. An increase of three …

One can define levels of intensities: after the inventor of the telephone we call them decibels (or perhaps phones!). Nearly 75 years old, and suffering from hearing loss (our interview was …

The decibel is a logarithmic unit used to describe the ratio of a signal level - like power, intensity or amplitude - to a reference level. Decibel is a dimensionless value of relative ratios. The …

2025年1月21日 · A decibel (dB) is a logarithmic unit used to measure the intensity of sound, as well as other quantities like electrical power and microwave signals. It provides a way to …