The decibel is useful for representing large ratios and for simplifying representation of multiplicative effects, such as attenuation from multiple sources along a signal chain.

Online sound level meter that measure and analyze audio in real time using your device microphone. This tool provide advanced audio analysis with multiple measurement scales, real …

Oct 31, 2025 · A decibel (dB) is a unit for expressing the ratio between two amounts of electric or acoustic power or for measuring the relative loudness of sounds.

To express levels of sound meaningfully in numbers that are more manageable, a logarithmic scale is used, rather than a linear one. This scale is the decibel scale. A noise level chart …

The unit for measuring the relative intensities of sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound …

Apr 24, 2025 · If you’ve ever seen numbers like 60 dB or +3 dB on audio gear, radios, or electronics, you’re looking at a decibel (dB) value. But what does it actually mean — and how …

A decibel (dB) is a unit used to measure the intensity or power level of sound or signal. It represents the logarithmic ratio between the measured value and a reference value, typically …

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 …

Nov 6, 2024 · A decibel (dB) is a unit of measurement for sound levels, also known as amplitude or volume. It is measured on a logarithmic scale, increasing exponentially. Every increase of …

/ ˈdes·əˌbel, -bəl / Add to word list a unit for measuring the loudness of sound (Definition of decibel from the Cambridge Academic Content Dictionary © Cambridge University Press)