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<p class=MsoNormal><font size=4 color=navy face=Arial><span style='font-size:
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<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:windowtext'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> caut-bounces@ptg.org
[mailto:caut-bounces@ptg.org] <b><span style='font-weight:bold'>On Behalf Of </span></b>Richard
Brekne<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'>Thursday, June 21, 2007</span></font><font size=2
color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> </span></font><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext'>2:12 AM</span></font><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'><br>
<b><span style='font-weight:bold'>To:</span></b> caut@ptg.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [CAUT] coupled motion and
other myths</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=3 color=black face="Times New Roman"><span style='font-size:
12.0pt'>Hi Ric<br>
<br>
The coupled motion of strings is a description of the physics behind how more
then one string effect both the termination and each other when put into
vibration.</span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=4 color=navy
face=Arial><span style='font-size:14.0pt;font-family:Arial;color:navy'>It is a
theory, not a description. </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=4 color=navy
face=Arial><span style='font-size:14.0pt;font-family:Arial;color:navy'>There were
experiments but they forgot to include the piano tuner. As a tuner
I think I can demonstrate what they heard was a result of “tuning instability.”
The internet is now the opportunity to say, “Hey, if you phd’s want
to conduct experiments on pianos, we tuners can give you some insight.”
But they are a little shy of tuners because if they do get it
into theory, (algorithm) they will have synthesized the sound of a piano into a
computer chip, and then can produce an instrument at 1/10 cost of “acoustic
piano” at 10 times the profit. </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>By the way, do you know who or how were the 5 lectures financed? </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>---rm </span></font><br>
<br>
The so called pitch drop Virgil Smith, Dr Coleman and a host of others claim is
a related subject matter but it is not in itself the same thing.<br>
It is in my opinion entirely possible that in some instances the pitch will not
drop, but raise... or not seem to be affected. The reason for this is
also to be found in the 5 lectures. The bridge impedance at each bridge
pin also must be considered. <br>
<br>
decisive part of the attack portion of the sound the soundboard releases,
and that this effects the overall sound. He also has some interesting
things to say about longitudinal vibration in the soundboard itself.</p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=4 color=navy
face=Arial><span style='font-size:14.0pt;font-family:Arial;color:navy'>Yeah and
you need the moon in Vergo to grow a very good tomato. </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
There are many piano techs claiming to have far greater insights into these
subject matters then they can possibly have.</span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=4 color=navy
face=Arial><span style='font-size:14.0pt;font-family:Arial;color:navy'>Really?
Then there are a few who do have “greater insights” Lets
hear from them. </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt'> The
fact is there are a handful of bonified researchers out there with the physics
knowledge to describe adequately these things, </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'> But do you
think there are technicians who can also “</span></font>describe adequately
these things,”<font size=4 color=navy face=Arial><span style='font-size:
14.0pt;font-family:Arial;color:navy'>? </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>“these things” are the real life instruments that the
techs build that the bonified researchers out there with physics knowledge then
“describe adequately”. </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>I have no worry about the scientists synthesizing the sound of the
piano. I can help them do it and hopefully retire me and my
generations in comfort. It’s a slim hope (it is about to
happen, probably only two years to act). </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>Anybody heard of psycho acoustics? Google it, you
won’t believe what you see/hear. The “hit” below
is one of many and is interesting for the first part……</span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'> </span></font></p>
<h2 style='margin:0in;margin-bottom:.0001pt'><b><font size=3 color=black
face=Arial><span style='font-size:12.0pt;font-family:Arial;color:black;
font-weight:normal'><a
href="http://www.dogstar.dantimax.dk/acoustic/acoust-1.htm">Experiments in <b><span
style='font-weight:bold'>Psycho</span></b>-<b><span style='font-weight:bold'>Acoustics</span></b>,
Introduction</a></span></font></b></h2>
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<p class=MsoNormal><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Beat Frequencies: Finally, there
is the phenomenon of "beat frequencies" which is often explained as
a <b><span style='font-weight:bold'>psycho</span></b>-<b><span
style='font-weight:bold'>acoustic</span></b> mixing process. <b><span
style='font-weight:bold'>...</span></b><br>
</span></font><span class=a1><font size=2 color=green face=Arial><span
style='font-size:10.0pt;font-family:Arial'>www.dogstar.dantimax.dk/acoustic/acoust-1.htm
- 26k - </span><nobr></font></span><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><a
href="http://64.233.167.104/search?q=cache:9Ahb9iB6vfwJ:www.dogstar.dantimax.dk/acoustic/acoust-1.htm+psycho+acoustics&hl=en&ct=clnk&cd=3&gl=us"><font
color="#7777cc"><span style='color:#7777CC'>Cached</span></font></a> - <a
href="http://www.google.com/search?hl=en&q=related:www.dogstar.dantimax.dk/acoustic/acoust-1.htm"><font
color="#7777cc"><span style='color:#7777CC'>Similar pages</span></font></a></span></font></nobr></p>
</td>
</tr>
</table>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=4
color=navy face=Arial><span style='font-size:14.0pt;font-family:Arial;
color:navy'>PLEASE I am not quoting the reference above as the truth, but
as something the might be of interest to piano tuners, or not, ,,, but it held
my interest for two pages. …. rm</span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=4 color=navy
face=Arial><span style='font-size:14.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:.5in'><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'><br>
Is this pitch drop that Virgil Smith mentions, is it the same as "coupled<br>
motion"? Did he call it that? Who then came up with the name? <br>
<br>
I can demonstrate the opposite. I can tune a unison that will show the<br>
pitch rising from the first string tuned. And this would be a unison that<br>
agrees with any RPT. Lets do it at a convention. I will pay
for the booth<br>
if each visitor chips in a dollar. (As an added truth, I can also<br>
demonstrate it can go down in an acceptable unison.) That ought to make
it<br>
worth $2.00 a visit. </span></font>Richard Moody
</p>
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style='font-size:12.0pt'> </span></font></p>
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