Black noise is also called silent noise.SilenceNoise with a 1/fβ spectrum, where β 2. This formula is used to model the frequency of natural disasters.Noise that has a frequency spectrum of predomi ...
The decibel originates from methods used to quantify signal losses in telephone circuits. These losses were originally measured in units of Miles of Standard Cable (MSC), where 1 MSC corresponded to t ...
Mythology Belenus or Bel; a Celtic deityBel (mythology), a title (meaning "lord" or "master") for various gods in Babylonian religionPeople Bel (name)Places Bél, the Hungarian name for Beliu Commune, ...
Subjectively valid methods came to prominence in consumer audio in the UK and Europe in the 1970s, when the introduction of compact cassette tape, dbx and Dolby noise reduction techniques revealed the ...
When using analog tape recording technology, they may exhibit a type of noise known as tape hiss. This is related to the particle size and texture used in the magnetic emulsion that is sprayed on the ...
In the context of spectator sports, artificial noise is the use of artificial sound-making devices to show the audience's support.In organized sports' early years, noise, such as there was, came solel ...
In telecommunication, antenna noise temperature is the temperature of a hypothetical resistor at the input of an ideal noise-free receiver that would generate the same output noise power per unit band ...
In atmospheric sounding and noise pollution, ambient noise level (sometimes called background noise level, reference sound level, or room noise level) is the background sound pressure level at a given ...
A-weighting began with work by Fletcher and Munson which resulted in their publication, in 1933, of a set of equal-loudness contours. Three years later these curves were used in the first American sta ...
There is equal energy in all octaves (or similar log bundles) of frequency. In terms of power at a constant bandwidth, pink noise falls off at 3 dB per octave. At high enough frequencies pink noise is ...
In particle physics, a massless particle is a particle whose invariant mass is theoretically zero. Currently, the only known massless particles are gauge bosons: the photon (carrier of electromagnetis ...
The term massive particle refers to particles which have real non-zero rest mass. According to special relativity, their velocity is always lower than the speed of light. The synonyms bradyon (from Gr ...
A proton and an electron can move separately; the total center-of-mass energy is positive, and such a pair of particles can be described as an ionized atom. Once the electron starts to "orbit" the pro ...
Muonium is an exotic atom made up of an antimuon and an electron, which was discovered in 1960 and is given the chemical symbol Mu. During the muon's 2.2 ?s lifetime, muonium can enter into compounds ...
In theoretical physics, a spurion is a fictitious, auxiliary field in a quantum field theory that can be used to parameterize any symmetry breaking and to determine all operators invariant under the s ...
