Scaling Programs

[Richard Moody]

I have a scaling "program" on a spread sheet.  Right now it is getting
updated in Excel but I also used it in Quatro Pro, and MS Works in W95. 

It computes tension from length diameter and pitch. If you have Excel I
can email out the spreadsheet.  For bass strings I am considering 3
methods, McFerrin, Fenner, (I think) and weight of the actual string. 
 
Inharmonicity formulas are a snap with spreadsheets. Just tell me which
one to enter although I am not sold on the idea of tweeking iH just from
math formulas. As far as inharmonicity in bass strings I will be happy
to use any formula suggested.  I am skeptical that iH can be computed
for bass strings.  I think it more practical to make a string and then
measure its iH. But measuring iH can be disappointing in some tuning
programs, and I have never heard, "this is the  best machine to measure
iH.   

You inquired about Winscale and P-Scale.  I have not used them and
wondering of they have the capability to compute tension of bass string
from different gauges of copper winding?   I know this is not precise
because more wire can be wrapped depending on how hard the winder pulls
on the winding wire.  

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of clarks11628@juno.com
Sent: Sunday, March 21, 2004 12:14 PM
To: pianotech@ptg.org
Subject: Scaling Programs



Hello, All!  I would like your input on Scaling Programs available.  Has
anybody used Winscale?  I know that P-Scale seems to be used widely (?),
and would like to hear comments on the effectiveness, ease of
understanding, pre-requisites for effective use, etc.  I am in the
process of doing more re-whatevering than before, and am not satisfied
anymore with just re-doing whatever I find there.  After using Arledge's
bass strings a few times, and seeing the results,  I would like to
understand what to do with the whole instrument. Anyone care to comment,
please? Clark Sprague



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