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pink noise

   Also found in: Wikipedia 0.03 sec.

A random signal of every frequency in the audio spectrum, in which each higher octave drops off 3 dB. The lower octaves have more power, and the higher octaves have less power. Pink noise is generated to test loudspeakers in a room as well as to "tune" a room for best audio reproduction.

Also known as "1/f noise," pink noise patterns have been found in music melodies, semiconductors and atomic clocks. They are also found in nature, including the sounds of wind and waterfalls. Contrast with white noise and Gaussian noise.
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When sonic terrorists Pink Noise Test come up with a strong tune, the first thing they do is obscure the fact.
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In addition to Sharper Image's core of 20 popular sounds, the added 30 selections allowed for imaginative sounds such as Biker, Hair Dryer, Pink Noise and every kind of wind chime imaginable.
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Also on the bill is Phantom Planet and Pink Noise Test.
WHAT'S HAPPENING : DINING by Daily News (Los Angeles, CA)
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