READIN

🦋 Tin-can Cello: soundpost

I put a soundpost in! On the bass side, not the treble. It really strengthens and clarifies the bass sound.

The soundpost is cut from the soundpost of the cello that I took the fingerboard from. It is connecting the bridge to the dowel.

posted evening of Monday, November 19th, 2018
➳ More posts about The Tin-can Cello
➳ More posts about Projects

I'm genuinely puzzled about what function the soundpost is serving. Over the course of the past month or so a number of people have said to me something along the lines of "a soundpost is vital in a bowed instrument" but I haven't really acted on it... My understanding of soundposts was that they transfer vibration from the soundboard to the back plate of the violin, but this seems like it is way too limited.

I went ahead and put it in after a poster at maestronet mentioned that my setup was producing "symmetric plate vibration areas with the bass bridge foot going up while the treble foot goes down. Much of the sound produced in an area of the plate by one foot is cancelled by the out of phase sound coming from another equal size area moving the other way." He was recommending I put in a bass bar and a soundpost. Still trying to figure out how to carve a bass bar to match the profile of the bottom of the soundboard... Once I have that I will move the soundpost over to the treble side.

So as far as function, the soundpost is transferring vibrations from the soundboard to the dowel, and then possibly those are transferring to the bucket where it meets the neck... Additionally it must somehow be changing how the soundboard responds to the vibration of the bridge.

posted morning of November 21st, 2018 by Jeremy Osner

Respond:

Name:
E-mail: (will not be displayed)
Link:
Remember info	Send