White Noise CD

Rather than buying one of the various baby soother CDs out there, I thought I would try making a plain white noise CD instead.

Technical Details

With a useful hint from this page, I used the SoX program to generate the sound data. The command line is:

      sox -t sl -r 44100 -c 2 /dev/zero   -r 44100 -c 2 -w  whitenoise.wav synth 10:00 whitenoise vol 0.6 fade q 10 10:00 10

Breaking this down:

I then repeated the whole process with the pinknoise option instead of whitenoise.

To produce MP3 files, I installed LAME (and then rebuilt/reinstalled SoX so that it picked up the presence of LAME). Then it was just a case of doing:

      sox whitenoise.wav whitenoise.mp3

(which sticks with a default 128kbps bitrate)