The brown note is supposed to be the resonant frequency of the
human digestive system, somewhere in the sub-sonic range. When
played back loudly enough, this note possibly may cause a loss of
sphincter control... Different versions of the myth place the
frequency between 2 and 20 Hz, and recent variations claim that
the effect has been produced at loud rock concerts.
the term also refers to any infrasound note that can create
disorientation or nausea. Not to be confused with the
The sound file
|Brown Note (Sine 7Hz, -3dBFS)
Ensure that your subwoofer extension is low enough to reproduce
sub-sonic frequencies (usually they won't go that low) then play
back the file at maximum level. You won't hear anything but may
suffer from (back) side effects...
Alternatively, you can produce your custom brown notes online, using
Waveform Generator. Try experimenting with a sine wave first, and frequencies around 2-20 Hz.