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Real Simple on MSNWhite Noise Can Help You Sleep—but Pink or Brown Noise Might Be Even BetterFinding the right sleep noise can mean better sleep for years to come. Sleep and sound experts explain the benefits of different noise "colors," plus how to pick the right sound machine for you.
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.
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