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.

It’s called “pink noise” and it’s designed to keep your hearing intact after being bombarded by the extremely loud sounds typically associated with a vehicle crash. As IEEE Spectrum points ...

A type of noise with equal energy in each octave vs white noise which has its energy distributed throughout the frequency range of audio. In white noise, half of its energy will be in the 10,000 - ...