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.
Sound File
| |
| wav ↓ |
| Brown Noise @ -3dBFS |
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.
External Links