Bridge Seating

Ric Brekne ricbrek at broadpark.no
Sat Sep 9 14:11:46 MDT 2006


    Alan writes
    "...false beat is ... caused by changes in either the speaking
    length or a change in the tension of the string."
    Farrell replies:
    Or change in wire size.

McFerrin cites variation in wire diameter in a single string as a cause 
for false beats. The smaller diameter yeilds a different a localized 
different tension which yeilds a secondary set of partials.  I've not 
heard that a change in wire size alone would affect false beating one 
way or the other... but it wouldnt suprise me that this too would end up 
happening or not on a random basis.

    Alan writes:
    "Does a loose bridge pin create changes in tension or changes in the
    speaking length of the string?"
    Farrell replies
    I certainly don't know for sure, but I've wondered the same thing
    and made the assumption that both these things are likely culprits.

Thats the going theory... sideways micro wobble allowed by both a loose 
pin in combination with a crushed notch edge that leaves the edge drop 
off behind the string.  Only problem is that there is no occurrance of 
false beats  in all to many instances.

    Terry Farrell

Cheers
RicB
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