Re: Shape of background noise (Ralph Muehleisen )

Subject: Re: Shape of background noise
From:    Ralph Muehleisen  <muehleisen@xxxxxxxx>
Date:    Mon, 21 May 2007 20:33:57 -0500
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

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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

-- 
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@xxxxxxxx    url:http://acoustics.iit.edu/muehleisen

On 5/21/07, Kevin O'Connor <knoconnor@xxxxxxxx> wrote:
>
>
> Also:
> Hoth, DF.  Room noise spectra at subscribers' telephone locations.  J.
> Acoust. Soc. Am., 12:  499-504, 1941.
>
> Kevin
>
>
> Kevin O'Connor
> Center for Neuroscience and
> Section of Neurobiology, Physiology and Behavior
> UC Davis
> Davis, CA  95616
> (530) 752-5304
> knoconnor@xxxxxxxx
>
>
> At 01:23 PM 5/21/2007, Brian Gygi wrote:
>
>  AUDITORY@xxxxxxxx
>
>
>

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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.&nbsp; I believe that changes in building construction and building systems along changes in outdoor environmental noises make such a dated study inappropriate.&nbsp; I would suggest that you avoid references before the mid 80&#39;s.&nbsp; 
<br><br>Ralph<br clear="all"><br>-- <br>Ralph T. Muehleisen<br>Assistant Professor, Civil and Architectural Engineering<br>Illinois Institute of Technology, Chicago, IL 60616<br>tel: 312-567-3545&nbsp;&nbsp;&nbsp;&nbsp;fax: 312-567-3519<br>email: 
<a href="mailto:muehleisen@xxxxxxxx">muehleisen@xxxxxxxx</a>&nbsp;&nbsp;&nbsp;&nbsp;url:<a href="http://acoustics.iit.edu/muehleisen">http://acoustics.iit.edu/muehleisen</a>
<br><br><div><span class="gmail_quote">On 5/21/07, <b class="gmail_sendername">Kevin O&#39;Connor</b> &lt;<a href="mailto:knoconnor@xxxxxxxx">knoconnor@xxxxxxxx</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">

<div>
<font size="3"><br>
Also:<br>
Hoth, DF.&nbsp; Room noise spectra at subscribers&#39; telephone
locations.&nbsp; J. Acoust. Soc. Am., 12:&nbsp; 499-504, 1941.<br><br>
Kevin<br><br>
<br>
Kevin O&#39;Connor<br>
Center for Neuroscience and <br>
Section of Neurobiology, Physiology and Behavior<br>
UC Davis<br>
Davis, CA&nbsp; 95616<br>
(530) 752-5304<br>
<a href="mailto:knoconnor@xxxxxxxx" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">knoconnor@xxxxxxxx</a> <br><br>
<br>
At 01:23 PM 5/21/2007, Brian Gygi wrote:<br>
<blockquote type="cite" cite="http://">&nbsp;<a href="mailto:AUDITORY@xxxxxxxx" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">AUDITORY@xxxxxxxx</a>
</blockquote></font></div>
<br>

</blockquote></div><br>

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