Internal Brown Noise Generator

[K4680]

White noise:
Contains all frequencies, but the frequencies are different loud. The high frequencies are louder and seen at 25db to the lowest frequency.

Pink noise:
Contains all frequencies of the audible range, all the same loud, linear, so to speak.

Brown noise:
Is just as multifrequential but the volume distribution is inversely proportional to the white noise, the drop in level to the high frequencies is 6dB / octave.

This is different from what Wikipedia says, e.g. https://en.m.wikipedia.org/wiki/White_noise

Hi, comes from a book for speaker development and testing. Comes from the year 1970, belongs to the standard literature for studio technology!

[Soniclife]

Did a search, found the following quote...

British Dictionary definitions for white noise

white noise

noun

sound or electrical noise that has a relativelywide continuous range of frequencies ofuniform intensity

noise containing all frequencies rising in level bysix decibels every octave

That does not clear it up at all!

I've always understood it as equal loudness, but perceived as rising in room from most speakers.