String noises revisited

[Allen Wright]

Ed,

This sounds like an exact description of what I'm dealing with.  
Octave three - 15th partial - disappears with pitch change; all yes.

I want to read Jim's book now....does he suggest any fix for this, or  
is it a scaling problem (or simply unavoidable) or what?

Allen


On Jul 12, 2008, at 2:38 AM, Ed Sutton wrote:

> Allen-
>
> If I understand Jim Ellis' book, in a 7 foot grand piano,  
> longitudinal mode noises will tend to occur in octave 3, and they  
> will tend almost always to be at or near the frequency of the 15th  
> partial. There will probably be a slight delay after the attack and  
> before the sound develops. If you make slight changes in the pitch  
> of the string, the longitudinal mode sound will not change pitch,  
> but will disappear when the pitch has changed such that the modes  
> that excite the longitudinal mode are outside of its resonance band.
>






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