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Re: Shape of background noise

While useful for studying the changes in background noise over the last 65 years, the last reference is probably not applicable to characterization of nearly any modern built environment.  I believe that changes in building construction and building systems along changes in outdoor environmental noises make such a dated study inappropriate.  I would suggest that you avoid references before the mid 80's. 


Ralph T. Muehleisen
Assistant Professor, Civil and Architectural Engineering
Illinois Institute of Technology, Chicago, IL 60616
tel: 312-567-3545    fax: 312-567-3519
email: muehleisen@xxxxxxx    url:http://acoustics.iit.edu/muehleisen

On 5/21/07, Kevin O'Connor <knoconnor@xxxxxxxxxxx> wrote:

Hoth, DF.  Room noise spectra at subscribers' telephone locations.  J. Acoust. Soc. Am., 12:  499-504, 1941.


Kevin O'Connor
Center for Neuroscience and
Section of Neurobiology, Physiology and Behavior
UC Davis
Davis, CA  95616
(530) 752-5304

At 01:23 PM 5/21/2007, Brian Gygi wrote: