average noise

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• Displayed average noise level — In relationship to spectrum analyzers, the Displayed Average Noise Level (DANL) is directly associated with amplitude specifications in a given electronic signal, and the signal s Noise to Noise ratio.For more info see: [http://www.spectrum… …   Wikipedia

• Noise-induced hearing loss — (NIHL) is an increasingly prevalent disorder that results from exposure to high intensity sound, especially over a long period of time. Contents 1 Description 2 Mechanism 3 Types 3.1 …   Wikipedia

• Noise reduction — For sound proofing, see soundproofing. For scientific aspects of noise reduction of machinery and products, see noise control. Noise reduction is the process of removing noise from a signal. All recording devices, both analogue or digital, have… …   Wikipedia

• Noise floor — This article is about physics term. For the Bright Eyes album, see Noise Floor (Rarities: 1998 2005). In signal theory, the noise floor is the measure of the signal created from the sum of all the noise sources and unwanted signals within a… …   Wikipedia

• Noise dosimeter — A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations… …   Wikipedia

• Noise (2007 U.S. film) — Infobox Film name = Noise image size = caption = director = Henry Bean producer = Seven Arts Pictures Fuller Films writer = Henry Bean narrator = starring = Tim Robbins Bridget Moynahan William Hurt William Baldwin music = Phillip Johnston… …   Wikipedia

• Average — In mathematics, an average, or central tendency[1] of a data set is a measure of the middle value of the data set. Average is one form of central tendency. Not all central tendencies should be considered definitions of average. There are many… …   Wikipedia

• Noise reduction coefficient — The noise reduction coefficient (commonly abbreviated NRC) is a scalar representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection; an NRC of 1 indicates perfect absorption.… …   Wikipedia

• Noise Reduction Coefficient — The Noise Reduction Coefficient (commonly abbreviated NRC) is a scalar representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection; an NRC of 1 indicates perfect absorption.In …   Wikipedia

• Day-Night Average Sound Level — The Day Night Average Sound Level (Ldn or DNL) is the average noise level over a 24 hour period. The noise between the hours of 10pm and 7am is artificially increased by 10 dB. This noise is weighted to take into account the decrease in community …   Wikipedia

• Channel noise level — In telecommunications, the term channel noise level has the following meanings: The ratio of the channel noise at any point in a transmission system to an arbitrary level chosen as a reference.[1][2] The noise power spectral density in the… …   Wikipedia