Some tips on how to get white noise.

- Obviously you can set a radio between channels, but I often don't have a radio in the room but do have a computer, so...

- In linux, if you have ALSA installed, you can type

    cat /dev/urandom | aplay -f cd

in the console, or

    cat /dev/urandom > /dev/dsp

for OSS

- On the internet, there's http://simplynoise.com/