[CAUT] coupled motion and other myths

[Richard Moody]

"They are just measuring devices"

 

Exactly and thanks for bring it up.   Yes --- but above all they have to be
consistent.  I can test the fundamental of two particular machines but when
measuring "harmonics" the result varies.  

Specific mentions should be another thread...   R Moody 

 

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Keith
Roberts
Sent: Sunday, June 10, 2007 7:40 PM
To: College and University Technicians
Subject: Re: [CAUT] coupled motion and other myths

 

I don't get some of this. I see nothing disproved. The coupled motion thing
seems to be an issue of semantics as well as the para inharmonicity. I also
disagree with the statement that tuning devices have shortcomings, They are
just measuring devices and if there is a sound there, it measures it. How
the data is interpreted and used by the operator is where the shortcomings
are. You know, a man can be a 5 time divorcee loser or a man who is not
afraid to make a commitment. Depends on how you word it. 

 

Keith Roberts

 

On 6/10/07, Remoody <remoody at midstatesd.net> wrote: 

Was posted........
"""The bridge is not a ridged termination. (coupled motion of piano
strings).
If the rigidity changes with humidity then the string may appear longer or 
shorter thus affecting pitch. Dean Reyburn refers to this effect as "para
inharmonicity"i.e.""""

I would like to offer some arguments to disprove the idea of coupled motion,
and  para inharmonicity, and to look at inharmonicity in a new light.   

"Coupled motion" is  dispelled when the definition of it is given.  It is
not logical, rational, nor holds up to the Scientific Method of proof by
experiment.

"Para inharmonicity" is a myth to explain (or excuse) the short commings of
tuning machines.  

Inharmonicity seems to be a valid scientific phenonenom but still eludes
consistant measurement.

--Richard Moody




 

 

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