-6 dB/octave

Brown Brown noise

Brown noise has more energy in the low end, rolling off at about minus 6 dB per octave. It sounds deep, like a steady rumble or heavy rain, and many people find it good for focus.

What the evidence says

Broadband noise can help mask distractions and some find it aids concentration, but strong controlled evidence for a specific colour being best is limited.

Brown noise is defined by its slope, not by magic. The useful, checkable claim is simply whether a track called brown noise actually has a minus 6 dB per octave slope.

How we measure it

Synthesized from a defined spectral slope and confirmed by FFT to fall at roughly minus 6 dB per octave.

References

• Zhou, J., et al. (2012). Pink noise: Effect on complexity synchronization of brain activity and sleep consolidation. Journal of Theoretical Biology.

Not medical advice. These sessions support relaxation and general wellness.