Natural Science Forum / Physics / Acoustics / August 2008

Hi :+) . Has anyone got an advice. I am doing a project to assess
impact of
proposed entertainment noise upon residents. Will be monitoring third
octaves bands on site and want to then build  a CADNA-A model of post

I have a problem that maybe someone can help with.
I have a small plastic box (about 10cm(W) by 6 cm(L) by 4cm(D)
Inside the box is a small electric motor. This motor also drives a few
moving parts such as gears, etc.

If you know any Hum Sufferers out there, they may be interested to look at
www.copingwithnoise.org
This introduces our new project on helping people to cope with noise
problems which cannot be solved technically.

I've been working on a project analyzing the propagation of outdoor
noise and need to determine the amount of ground absorption a gravel
surface will provide.  The area in question would be covered with 6"
of 1.5 - 2" stone.  So far I haven't been able to find any information

Hi List,
I am living apartment and I have new neighbors who can be a little
noisy at times and it is disturbing my sleep.
The common wall between my bedroom and their family room is rendered

we need to build a lab where to raise the mice for experiment.
did anyone know the standard for floor vibration on this lab.
I know the ISO 2631 mention the vibration criteria for  office ,
residential site .