Welcome Guest!
 LTUDelphi
 Previous Message All Messages Next Message 
Estimating Sound propagation  Daniel J. Alberts
 Jun 15, 2005 11:45 PDT 

Everyone,

This web site provides a rough first estimate of outdoor sound attenuation
based on ISO 9613.


http://www.measure.demon.co.uk/Acoustics_Software/iso9613.html


For example, at 20 C, and 77% humidity, a Concert A (440 Hz) will reduce in
volume 2.3 dB per kilometer. A low frequency sound (200 Hz) will reduce only
.8 dB per km.

Of course, this doesn't take into account sound absorbed by trees or
reflected by buildings. But it gives a good 'first estimate'.

-Daniel

Daniel Alberts
Lawrence Tech's Wind Energy Delphi
www.ltu.edu/engineering/mechanical/delphi_wind.asp
dja1-@nethere.com
	
 Previous Message All Messages Next Message 
  Check It Out!

  Topica Channels
 Best of Topica
 Art & Design
 Books, Movies & TV
 Developers
 Food & Drink
 Health & Fitness
 Internet
 Music
 News & Information
 Personal Finance
 Personal Technology
 Small Business
 Software
 Sports
 Travel & Leisure
 Women & Family

  Start Your Own List!
Email lists are great for debating issues or publishing your views.
Start a List Today!

© 2001 Topica Inc. TFMB
Concerned about privacy? Topica is TrustE certified.
See our Privacy Policy.