an analysis of downbearing, etc.

[Lesher, Trent J.]

Thank you for this posting.  This thread was confusing me, and this kind of helps me get my thoughts organized to start trying to understand what people are talking about.  

Can you elaborate on the following statement?  "From an efficiency standpoint, we do not want energy from the air to be reflected back into the sounding board.  From an artist/craftsman standpoint, we do want this to happen, because that's part of what gives the piano its tone."

Also maybe you can help clarify how to figure out the questions in the last several days about dipole effects and leaks in soundboards (I listed the posts below).  Even though I worked in loudspeaker design for several years, I'm not an engineer, in fact like many I have little formal science training, so this kind of input can really help keep my 'self-education' on track.

Trent Lesher



Soundboard "short circuit" questions posts:

Isolated Air Movement, was: Rib Thinning
Farrell 1/29/04 8:52 a.m.  

Re: Isolated Air Movement, was: Rib Thinning
Overs 1/29/04 3:37 p.m.

Dipole Effects and Leaks in Soundboard; was Isolated Air-Movement
Lesher 1/31/04 6:35 p.m.

Re: Dipole Effects and Leaks in Soundboard; was Isolated Air-Movement
Erwin 1/31/04, 10:29 p.m.

RE: SB Leaks & Dipole Effects -- Was Isolated Air-Movement
Lesher 2/2/04 12:27 p.m.

RE: Isolated Air Movement, was: Rib Thinning
Lesher 2/2/04 2:00 p.m.












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