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Definition of «decibel»

A decibel (dB) is a unit used to measure sound intensity or power levels. It is based on a logarithmic scale, which means that an increase of 10 dB represents a tenfold increase in sound pressure level. The human ear perceives sounds with different intensities as having the same loudness at specific reference points on the decibel scale. For example, a sound intensity of 0 dB is considered to be the threshold of human hearing, while an intensity of 120 dB is described as being extremely painful or potentially damaging to one's ears.

Usage examples

  1. The noise level in the construction site measured 90 decibels, causing discomfort to nearby residents.
  2. According to the World Health Organization, prolonged exposure to more than 85 decibels of traffic noise can lead to hearing damage.
  3. The sound system at the concert was producing a volume of 110 decibels, making it necessary to wear ear protection.
  4. The teacher's voice projected at around 70 decibels, ensuring that all students could hear the lecture clearly.
  5. The sound of a typical conversation is around 60 decibels, while a whisper is only about 30 decibels.

Phrases with «decibel»

Sentences with «decibel»

  • Although the speakers are located appropriately at the bottom, the audio output isn't up to the mark when we talk of decibel levels. (phoneradar.com)
  • Then the researchers examined the acoustic data, measured in decibels of energy, alongside the measured environmental variables. (sciencenews.org)
  • He skillfully balanced himself to avoid triggering the floor's pressure sensors, but still worried about the rising temperature and falling drops of sweat from his brow (caught with his gloved hand), and an increase in decibel levels, as he was raised back up into the vent when the CIA analyst reentered the vault. (filmsite.org)
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See also

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