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wolf eliminator?


oldsubguy
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It's a little brass/rubber clamp that fits onto, and damps, the afterlength of a string, for that subset of wolves that are caused by the vibration of same (you diagnose them by having someone hold each afterlength in turn with their fingers, while you play the offending note.) My daughter's otherwise very nice 1/4 violin had a horrendous wolf on the C sharp a minor ninth above middle C, and a wolf eliminator on the G string cured it very well.

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Wolf notes are very strange-sounding inharmonic vibrations- kind of an "awwwwk" sound- that occur on some instruments when certain notes are played. Cellos are more prone to them than violins or violas and if you look at a bunch of cellos you will probably see one or two with wolf eliminators installed. The afterlength of a string is the part between the bridge and tailpiece.

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The wolf is actually not caused by the string afterlength vibration, but by a body resonance that coincides with a note you are playing. (The tailpiece mass itself is a sort of generalized wolf eliminator.) Placing a weight at the appropriate place on the body can also mop up a wolf resonance.

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