Article about bridge agraffes - function, types

[RicB]

Hi Calin

Actually, there are bits from both these <<explanations>> that seem 
agreeable.

First off,  the elimination of "certain partials" and the concept of 
"bleed-through or noise" are not necessarily different things.  One 
could easily use both descriptions to talk about the same thing.  
Secondly, damping these sections does indeed influence the partials of 
the speaking length.  One only need take a short front length from an 
agraffed string and mute it with ones finger to notice a significant 
change in the character of the speaking length.  Just like we do in 
longer front duplex lengths.

I ran into a very interesting tidbit the other day dinking around.... 
you know those little pointers you get with palm PC's.  Made in some 
kind of aluminum or some such thing.  Stick one of those inbetween front 
duplex unisons up in the upper sections... and play the note loudly.  
Try a few different unisons.  You will find you can get the pointer to 
come into a very loud resonance... one that is actually tunable by way 
of how far down you push the pointer ie...how short/long you let its 
length be.  Its really quite loud.  Makes you wonder about all this 
energy in the front lengths... and what could be done with it.  And... 
the same thing happens for much shorter front lengths as well.  Just 
food for thought.

Cheers
RicB


     > The makers of the agraffes told me that the damping is meant to
    eliminate
     > certain partials that are not wanted. This is not exactly the same as
     > bleed-through or noise.
     >
     > Calin Tantareanu

    Yes, I understand that's the makers' explanation. I just don't
    think the explanation makes a lick of sense. How does a piece
    of rubber or felt only damp "certain" partials in a string
    segment less than 10mm long? The bleed through observation was
    my explanation of what I think is actually happening, and did
    make sense, at least to me.
    Ron N