Topic by delt

  • Avatar
  • delt
  • Member
  • Offline
  • From: Montréal, Canada
  • Registered: 11-06-2013
  • Posts: 401

Topic: Question about soundboard impedance

This feature is really useful for shaping the sustain of the notes, with longer sustain giving a more "organic" feel kind of like being closer to the piano, and shorter values are useful for practicing new material because you hear every note more clearly.

My question is: Even when the soundboard's mechanical impedance is very low, this doesn't affect the vibration of the strings, so they should still be vibrating longer after the initial attack, right? Or does the impedance of the soundboard have a dampening effect on the strings?

just wondering

http://soundcloud.com/delt01
Pianoteq 5 STD+blüthner, Renoise 3 • Roland FP-4F + M-Audio Keystation 88es
Intel i5@3.4GHz, 16GB • Linux Mint xfce 64bit

Reply by custral

  • Avatar
  • custral
  • Member
  • Offline
  • Registered: 22-08-2010
  • Posts: 288

Re: Question about soundboard impedance

Roughly taking impedance as analogous to resistance, the lower you go, the faster the board should steal energy from the strings, so you'd think.

Reply by Beto-Music

  • Avatar
  • Beto-Music
  • Member
  • Offline
  • Registered: 02-05-2007
  • Posts: 2,786

Re: Question about soundboard impedance

In a piano manufacture I visited, one director told me about one of their new grand piano model, which sound board was made with red spruce (Abete Rosso), and that gave the piano a richer tone.

This is their piano model:   http://www.youtube.com/watch?v=5knmL2aTWnk
I believe is the best brazilian grand piano nowadays.



Red Spruce wood have closer grains, and that gave more impedance, I believe.

Last edited by Beto-Music (03-09-2013 15:25)