What is Noise?
{{wiktionary}} [[File:Matrimonial-Harmonics-Gillray.jpeg|thumb|[[James Gillray]], 1805]] [[File:Gaussian white noise.ogg|thumb]] [[File:Earplug fitting.png|thumb|[[Earplug]] is used to protect the ears from loud sounds |257x257px]] '''Noise''' is another word for [[sound]]. It usually means it is not wanted. Noise is perceived by our ears. They can be damaged by noise. Noise is created through any object, which produces vibration unnecessarily. Noise can also mean [[Information|data]] (information) that typically does not have a meaning, like ''white noise''. [[Loudspeaker]] measurements can use white noise for measuring loudspeakers [[frequency response]]. Noise can also refer to some math that makes random numbers. Click [[Perlin Noise|here]] to learn about it. In [[electronics]], [[heat]] produces noise in [[resistor]]s. Depending on the type of resistor, the amount of noise may differ. Most audio devices are designed not to produce noise. == Related pages == * [[Noise (electronics)]] *[[Earplug]] {{tech-stub}} {{Commonscat}} [[Category:Sound]]