Hi,

could it be like the school experiment where you scatter salt on a metal 
sheet and then vibrate the sheet with a few KHz of sound.  The salt 
grains move to areas of the metal sheet where the vibrations are least.  
Perhaps your floor is like that, with parts of it vibrating less than 
others?  But does that meain that seismic vibration will be less there too?

Ian

Jón Frímann wrote:

>hi all
>
>In a attemt to get rid of noise from varius sources, at least reduse it
>a bit. I am testing to have my geophone in my computer room. But I did
>notice on my Borgarnes test setup that the noise level was not much
>diffrent in the corner then I was having on my main system (Hvammstangi)
>at it's location in my apartment. But this means that the geophone is
>less then three meters away from me. I do see footsteps and such noise,
>but I do not get the door noise and the window noise that I get when I
>open and close the window.
>
>I've like to get opinion on this if possible.
>
>Regards.
>  
>

Ian
www.festivalpreviews.com
-- 





  
  


Hi,



could it be like the school experiment where you scatter salt on a
metal sheet and then vibrate the sheet with a few KHz of sound.  The
salt grains move to areas of the metal sheet where the vibrations are
least.  Perhaps your floor is like that, with parts of it vibrating
less than others?  But does that meain that seismic vibration will be
less there too?



Ian



Jón Frímann wrote:

  
hi all

In a attemt to get rid of noise from varius sources, at least reduse it
a bit. I am testing to have my geophone in my computer room. But I did
notice on my Borgarnes test setup that the noise level was not much
diffrent in the corner then I was having on my main system (Hvammstangi)
at it's location in my apartment. But this means that the geophone is
less then three meters away from me. I do see footsteps and such noise,
but I do not get the door noise and the window noise that I get when I
open and close the window.

I've like to get opinion on this if possible.

Regards.
  



Ian

www.festivalpreviews.com

--