Pink noise is equal sound pressure for each octave, white noise is equal sound pressure at each frequency.
Remember, as you go up in pitch, there are twice as many frequencies in each succesive octave (between 220 and 440 Hz, vs. 440 and 880 Hz, for instance). Therefore, white noise has considerably more high frequency content.
Therefore, for room equalization, Pink noise is generally used. It's also popular for break-in, as it more closely resembles complex music in frequency distribution.
Remember, as you go up in pitch, there are twice as many frequencies in each succesive octave (between 220 and 440 Hz, vs. 440 and 880 Hz, for instance). Therefore, white noise has considerably more high frequency content.
Therefore, for room equalization, Pink noise is generally used. It's also popular for break-in, as it more closely resembles complex music in frequency distribution.