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White noise draws its name from white light, [2] although light that appears white generally does not have a flat power spectral density over the visible band. An image of salt-and-pepper noise In discrete time , white noise is a discrete signal whose samples are regarded as a sequence of serially uncorrelated random variables with zero mean ...
White noise devices are available from numerous manufacturers in many forms, for a variety of different uses, including audio testing, sound masking, sleep-aid, and power-napping. Sleep-aid and nap machine products may also produce other soothing sounds, such as music, rain, wind, highway traffic and ocean waves mixed with—or modulated by ...
The big three in sleep sounds are white noise, brown noise, and pink noise, but there are many other noise types, including purple noise, gray noise, and even black noise (a.k.a. good ol ...
The white bellbird grows to a length of about 28 cm (11 in). The male is pure white with a black bill that has a fleshy black wattle , sparsely feathered with white feathers, dangling from its top and hanging down the side, usually the right side; the female is an overall olive colour, with olive streaks on the yellowish underparts, and ...
Ian Dominick Fernow [1] is an American experimental musician, poet and multimedia artist.He is best known for extreme music released under the stage name Prurient, as well as numerous other aliases including Vatican Shadow, Rainforest Spiritual Enslavement and Christian Cosmos. [2]
In northern Idaho rainforest patches along the Clearwater River, a mean annual temperature of 5.4°C has been measured. [8] In British Columbian Inland rainforest areas, the mean annual temperature ranges from 2.7 to 4.5°C. In the coldest months, the mean temperature of these region lies between -8 and -9.5°C. [9]