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WikiSummarizerBot t1_iu7y2xy wrote

Pink noise

>Pink noise or 1⁄f noise is a signal or process with a frequency spectrum such that the power spectral density (power per frequency interval) is inversely proportional to the frequency of the signal. In pink noise, each octave interval (halving or doubling in frequency) carries an equal amount of noise energy. Pink noise is one of the most common signals in biological systems. The name arises from the pink appearance of visible light with this power spectrum.

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