On Thu, 2008-05-15 at 04:22 -0600, Justin Kelly wrote:
>Simpler solution:
>> (Almost) every pc today comes with a sound card. Why not get a cheap
> microphone (in this case the cheaper the better), plug it in and sample
> /dev/sound each time. For best effect, bolt it to the plumbing if you are in a
> big building. Every time a toilet flushes, you have a big burst of randomness.
> Alternatively, if you don't like the idea of being snooped on, use a cheap
> radio, tuned to some spot between the channels with plenty of noise.
If you take a look at sound sources on an analyser such as baudline
http://www.baudline.com/
you will find that just about any nose source you care to examine is far
from random.
Intra-station FM broadcast noise would be better than the other sources
suggested but even then the audio response of a crappy soundcard is far
from unbiased. Take a look at the output of the card with no source
connected to see what other self generated noises lurk in there
.brendan (who is looking for a decent lump of something radioactive to
bolt on my webcam )
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!
