What does background noise mean?

Definitions for background noise

Here are all the possible meanings and translations of the word background noise.

Princeton's WordNet

  1. background noise, ground noise(noun)

    extraneous noise contaminating sound measurements that cannot be separated from the desired signal


  1. Background noise

    In acoustics and specifically in acoustical engineering, background noise or ambient noise is any sound other than the sound being monitored. Background noise is a form of noise pollution or interference. Background noise is an important concept in setting noise regulations. See noise criteria for cinema/home cinema applications. Examples of background noises are environmental noises such as waves, traffic noise, alarms, people talking, bioacoustic noise from animals or birds and mechanical noise from devices such as refrigerators or air conditioning, power supplies or motors. The prevention or reduction of background noise is important in the field of active noise control. It is an important consideration with the use of ultrasound, sonar and sound reproduction. In astronomy, background noise or cosmic background radiation is electromagnetic radiation from the sky with no discernible source. In information architecture, irrelevant, duplicate or incorrect information may be called background noise. In physics and telecommunication, background signal noise can be detrimental or in some cases beneficial. The study of avoiding, reducing or using signal noise is information theory.


  1. Chaldean Numerology

    The numerical value of background noise in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of background noise in Pythagorean Numerology is: 5

Sample Sentences & Example Usage

  1. Renata Filippini:

    For optimal language development, controlling background noise is highly recommended, especially during specific learning moments, like during a story telling activity or during feeding times.

  2. Suneeti Nathani Iyer:

    When adults are in the presence of a lot of background noise, we are able to ignore it and focus on what is relevant, infants appear to not be as good at filtering out background noise and focusing on relevant information.

Images & Illustrations of background noise

  1. background noise

Translations for background noise

From our Multilingual Translation Dictionary

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"background noise." Definitions.net. STANDS4 LLC, 2018. Web. 26 Apr. 2018. <https://www.definitions.net/definition/background noise>.

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