Background Noise

Examples of background noises are Environmental Noise such Waves , Traffic noise, Alarms , people talking, Bioacoustic Noise from animals or birds and mechanical noise from devices such as Refrigerator s 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 (e.g. for medical diagnosis or imaging), 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 .

	CATEGORIES ABOUT BACKGROUND NOISE

	acoustics

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