pink noise

a random signal within the audible frequency range whose amplitude decreases as frequency increases, maintaining constant audio power per frequency increment.

1960–65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pink noise
noise containing a mixture of frequencies, but excluding higher frequencies

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source's 21st Century Lexicon
Main Entry:  pink noise
Part of Speech:  n
Definition:  random white noise that has been adjusted so there is equal energy per octave's 21st Century Lexicon
Copyright © 2003-2014, LLC
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Example sentences
Sometimes also called pink noise, this music has some correlation, but less than brown music and more than white noise.
After pulsing the battery with pink noise, the team runs algorithms to calculate an impedance profile.
Pink noise contains less energy in the higher audio frequencies than in the lower ones.
The court may also mute audio and generate pink noise in the jury box to obscure audio during sidebars.
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