Brown Noise

Background

Brown noise has more energy at lower frequencies, even more than pink noise. As power decreases by 6dB per octave, brown noise produces a "warmer" tone compared to white noise (0dB per octave) or pink noise (-3dB per octave). The name comes from "brownian" movement, where successive samples have a higher probability to stay close to each other than to move far away. Not to be confused with brown note that is discussed elsewhere on this site.

Applications

Brown noise is useful to check subwoofer phase issues. It can also be used for burning in midrange and bass drivers.

Usage

To properly integrate your subwoofer into your audio system, the subwoofer should be in phase with the other drivers at the crossover point. Tweak the phase of your sub until it produces the least bass, then flip its polarity. You're now done.

Brown Noise @ -3dBFS

Links

• Brown Noise @ Wikipedia