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pink noise. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Noun
pink noise (uncountable)
- A signal or process with a frequency spectrum such that the spectral energy density is proportional to the reciprocal of the frequency
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2005, John G. Holden, Gauging the Fractal Dimension of Response Times from Cognitive Tasks:It was Gilden, Thorton, and Mallon (1995) who first reported pink noise in response time variability during the fundamentally cognitive task of estimating fixed intervals of time.
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pink noise on Wikipedia.Wikipedia 