What is noise.

Question

What is noise.

Accepted Answer

Noise is unwanted or unpleasant sound that can cause disturbance or harm to human health.

Noise can be caused by various sources such as traffic, construction, industrial machinery, and loud music.
Exposure to high levels of noise can lead to hearing loss, stress, and other health problems.
Noise pollution is a growing concern in urban areas and can have negative impacts on both humans and wildlife.
Noise can be measured in decibels (dB) and the safe exposure limit for humans is around 85 dB for an 8-hour workday.
Noise reduction strategies include soundproofing, earplugs, and limiting exposure to loud noises.

Accepted Answer

Noise means all unwanted, statistically fluctuating signals which are superimposed on the measurement signal. For analytical procedures that show a baseline noise, estimation of the detection (LOD) and quantification (LOQ) limits from the SNR is possible. Typical examples are chromatographic and spectroscopic methods.

What is noise.

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