[sdiy] The eardrum and brownian motion

[Theo]

Just plug your finger tips in your ears,
you  will be able to hear your heart beat and the flow of blood through your
fingers.
Seems the ear it self has a "low noise" blood supply to keep the noise floor
low.
At least that is what they told us at high school biology class.

I too heard the high pitched sound in a sound dead/proof chamber.
Never knew it came from the nervous system,
somehow it feels a bit scary to hear your own nerves.
Mmm, would the noise change character depending on ones mood?

Theo


From: Mitchell Hudson <mitch at sirius.com>



> speaking of this I remember reading an interview with John Cage. He
> was talking about going into a room at some university that sound
> proof. He goes in and come out a while later and talks to the tech.
>
> He says I'm in a sound proof room but I am hearing two noises, first
> is a high pitched hum and the second is a very low pitched cycle. The
> tach says the first sound is the sound of the electrical noise from
> your nervous system and the other is your heart beat.
>
> This is just what I remember feel free to correct add to this, I'm
> sure I'm missing something. I too hear that high pitched sound and had
> often wondered where it was coming from!
>
> --M
>
> On Friday, October 4, 2002, at 10:03 AM, Tim Ressel wrote:
>
> > Yo,
> >
> > Fascinating. Brings up something I discovered a while
> > back: if one stays in a completely dead room i.e.
> > anechoic chamber, after a few minutes it starts to
> > freak you out. Then I think about all these noise
> > generators you can buy that creates white noise to
> > sooth you. Perhaps there is something here.
> >
> > Then there is the topic of the qualities of the noise.
> > Level, spectrum, distribution...
> >
> > I recall the lunches I'd spend in the hills above my
> > place of work. Get on the Rice Burner, grab a burger,
> > and eat it along side a burbling brook while looking
> > at the trees. Very nice.
> >
> > --TR
> >
> >
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