<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<body bgcolor="#D8D0C8">
Hi Stephane
<p>A good place to start is the 5 lectures on Acoustics available on the
Sweedish PTA website. This one has been up a few times before and
has been the subject of quite a bit of differeing opinion, for not to say
controversy.
<p>I dont have the math yet to calculate them, but I suppose some around
do, but the fundemental runs roughly 10 time that of the transverse fundmental
if I remember right. They are to some degree controlable, Conklin
showed that... but its not quite as straightforward as it might seem when
first reading his stuff. Understanding how Longitudinal waves move is fairly
easy.. there is a lot of demonstrations on the nett. The sound we hear
is longitudinal waves moveing through the air.
<p>Cheers
<br>RicB
<p>Stéphane Collin wrote:
<blockquote TYPE=CITE><style></style>
<font face="Arial"><font size=-1>Hi
list !</font></font> <font face="Arial"><font size=-1>Can anyone explain
me what is behind those longitudinal waves ?</font></font><font face="Arial"><font size=-1>Did
I understand well that longitudinal waves are movements of the string in
the direction of the string itself ?</font></font><font face="Arial"><font size=-1>But
how can you calculate them ?</font></font><font face="Arial"><font size=-1>How
do they appear ? (through overcentering hammers ? or anyway ?)</font></font><font face="Arial"><font size=-1>Do
they affect tone ? how ?</font></font><font face="Arial"><font size=-1>Can
you control this ?</font></font> <font face="Arial"><font size=-1>Stéphane
Collin</font></font></blockquote>
<p>--
<br>Richard Brekne
<br>RPT, N.P.T.F.
<br>UiB, Bergen, Norway
<br><A HREF="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</A>
<br><A HREF="http://home.broadpark.no/~rbrekne/ricmain.html">http://home.broadpark.no/~rbrekne/ricmain.html</A>
<br><A HREF="http://www.hf.uib.no/grieg/personer/cv_RB.html">http://www.hf.uib.no/grieg/personer/cv_RB.html</A>
<br>
</body>
</html>