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Noise (other)
Noise is a variety of sound, usually meaning any unwanted sound. Noise may also refer to: Science and technology * Noise (spectral phenomenon), referring to many types of random or unwanted signals, including acoustic noise ** Noise (signal processing) ** Noise (electronics) * Noise (economic), in a theory of pricing developed by Fischer Black * Communication noise, factors that impair human-to-human communication * Internet background noise, data packets addressed to IP addresses or ports where there is no device to receive them * Meta noise, irrelevant metadata in computer files * Noise trader, in financial research, a stock trader that makes random decisions * Noise pollution, excessive sound * Noise control * Environmental noise * Ambient noise level Arts and entertainment Film and television * Noise (2005 film), ''Noise'' (2005 film), a Canadian short film directed by Greg Spottiswood * Noise (2007 American film), ''Noise'' (2007 American film), a comedy-drama written ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noise
Noise is unwanted sound considered unpleasant, loud or disruptive to hearing. From a physics standpoint, there is no distinction between noise and desired sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound. Acoustic noise is any sound in the acoustic domain, either deliberate (e.g., music or speech) or unintended. In contrast, Noise (electronics), noise in electronics may not be audible to the human ear and may require instruments for detection. In audio engineering, noise can refer to the unwanted residual electronic noise signal that gives rise to acoustic noise heard as a Hiss (electromagnetic), hiss. This signal noise is commonly measured using A-weighting or ITU-R 468 noise weighting, ITU-R 468 weighting. In experimental sciences, noise can refer to any random fluctuations of data that hinders perception of a signal. Measurement Sound is measured based on the amplitude and frequency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
