Difference between white noise and pink noise?

Question

Difference between white noise and pink noise?

In: Other

Answer 1

White noise – Equal energy in each frequency. The amplitude of all sound waves are the same regardless of frequency which results in higher octaves containing more energy

Pink noise – Equal energy in each octave which results in the amplitude of the sound wave decreasing as the frequency increases.

There is also Grey noise which has equal loudness(as perceived by humans) at each frequency and Red Noise which has the amplitude fall off with the frequency squared so higher frequencies have much lower energy than in pink noise.