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1 definition by credit to Ars Technica

 
1.
A pseudo-random wav file which has equal distribution of energy in each frequency octave (e.g., energy between 1 and 2 Hz is equal to the energy between 10,000 and 20,000).
Pink noise can be used to test an MP3 encoder.
by credit to Ars Technica May 29, 2004
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