Vibration intensity of cello on the top-plate, tailpiece and (this case -->) carbon endpin:
When the tip of endpin is placed on the floor and restricted to vibrate, the vibration patterns of endpin and tailpiece change remarkably and the vibration intensity increases. As a result, the influence seems to extend over whole cello.
There seems to be some difference between the result from a steel pipe endpin and a carbon-fiber, but this phenomenon probably comes from the essential mechanical/structural issue of the endpin-built-in-cello.
エンドピン材質により若干の違いはあるものの、床置きしてエンドピン先端の振動が止められると、チェロの振動は大きく影響を受けて変化します。
Device : Vibration meter VB-8205SD
Cello : 110-year-old German cello
Endpin : 10mm(D) carbon, 28cm(11in) below tailpin
