average noise factor

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• 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

• Image noise — Noise clearly visible in an image from a digital camera Image noise is random (not present in the object imaged) variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the… …   Wikipedia

• Crest factor — The crest factor or peak to average ratio (PAR) or peak to average power ratio (PAPR) is a measurement of a waveform, calculated from the peak amplitude of the waveform divided by the RMS value of the waveform. It is therefore a dimensionless… …   Wikipedia

• Power factor — For other uses, see Power factor (pistol). The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load over the apparent power in the circuit,[1][2] and is a dimensionless number between 0 and 1… …   Wikipedia

• Pink noise — This article is about the signal in information theory. For the band, see PINKNOISE. Colors of noise White Pink Red (Brownian) Grey Pink noise or 1/ƒ noise (sometimes also called flicker noise) is a signal or process with a frequency spectrum… …   Wikipedia

• Health effects from noise — Roadway noise is a major source of exposure, particularly from tires Noise health effects are the health consequences of elevated sound levels. Elevated workplace or other noise can cause hearing impairment, hypertension, ischemic heart disease,… …   Wikipedia

• K-factor — Telecommunications= In telecommunication, the term k factor has the following meanings: 1. In tropospheric radio propagation, the ratio of the effective Earth radius to the actual Earth radius. Note: The k factor is approximately 4/3. 2. In… …   Wikipedia

• Johnson–Nyquist noise — (thermal noise, Johnson noise, or Nyquist noise) is the electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied… …   Wikipedia

• Industrial noise — is usually considered mainly from the point of view of environmental health and safety, rather than nuisance, as sustained exposure can cause permanent hearing damage. Traditionally, occupational noise has been a hazard linked to heavy industries …   Wikipedia

• Constant rate factor — (CRF) is a x264 s single pass encoding method. Contents 1 Overview 2 Technical details 3 Not a common knowledge 4 See also …   Wikipedia

• Fano factor — In probability theory and statistics, the Fano factor [Fano, 1947] , like the coefficient of variation, is a measure of the dispersion of a probability distribution. Fano factor is defined as :F=frac{sigma W^2}{mu W}where sigma W^2 is the… …   Wikipedia