What does DB mean?

The dB is a logarithmic way of describing a ratio. The ratio may be power, sound pressure, voltage or intensity or several other things. Later on we relate dB to the phon and to the sone, which measures loudness. But first, to get a taste for logarithmic expressions, lets look at some numbers.

What is decibel (dB)?

Definition and examples The decibel (dB) is a logarithmic unit used to measure sound level. It is also widely used in electronics, signals and communication. The dB is a logarithmic way of describing a ratio.

What is a database?

Database defined A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).

What is anzograph DB?

AnzoGraph DB is designed for interactive analysis of large sets of semantic triple data, but also supports labeled properties under proposed W3C standards. NoSQL native multi-model database system developed by ArangoDB Inc.

What is the meaning of DB in physics?

The decibel (symbol: dB) is a relative unit of measurement corresponding to one tenth of a bel (B). It is used to express the ratio of one value of a power or field quantity to another, on a logarithmic scale, the logarithmic quantity being called the power level or field level, respectively.

What is the difference between DB and dB scale?

The term dB (deciBel) and the dB scale are used world-wide for the measurement of sound levels. The deciBel scale is a logarithmic scale where a doubling of sound pressure corresponds to a 6 dB increase in level. It is important to realize that the term dB can have different meanings and is not a fixed value like the volt or the meter etc.

What is the DB level in dB?

The dB level can be viewed as relative gain of one level vs. other level, or absolute logarithmic scale level for well known reference levels. Decibel is a dimensionless unit. The ratio in bels is the base 10 logarithm of the ratio of P 1 and P 0:

What is decibel (dB)?

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 or very small numbers with shorter notation.

What is the Decibel Scale? On the decibel scale, 0 dB is the smallest audible sound. A sound 10 times more powerful is 10 dB. A sound 100 times more powerful than near total silence is 20 dB. A sound 1,000 times more powerful than near total silence is 30 dB.

What is the symbol for Decibel?

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