[pianotech] Interesting find

[David Love]

I don't think the wedge will kill sustain, though it might make it softer. Hold a tuning fork on a rigid steel table and it will continue to vibrate for a long time.


David Love
www.davidlovepianos.com

-----Original Message-----
From: Terry Farrell <mfarrel2 at tampabay.rr.com>
Sender: pianotech-bounces at ptg.org
Date: Tue, 19 Oct 2010 12:05:52 
To: <pianotech at ptg.org>
Reply-To: pianotech at ptg.org
Subject: Re: [pianotech] Interesting find

I should think a wedge against the middle of the soundboard would do  
nothing other than kill volume and sustain. Yes it would make it  
stiffer - but by binding the soundboard to the brace underneath, you  
are basically gluing the soundboard to a small length of rim - in the  
middle of the soundboard! Yes, stiffness in a panel will increase  
sustain, but I think only if the stiffer panel is able to vibrate  
freely - and a wedge in the middle of it will pretty much kill that I  
should think!

Terry Farrell

On Oct 19, 2010, at 10:02 AM, David Love wrote:

> It won’t actually make the sound louder.  Stiffening in this manner  
> is an attempt to improve sustain (usually).  More stiffness means  
> less loudness, at least at attack, but a slower rate of energy loss,  
> i.e. more sustain.
>
> David Love
> www.davidlovepianos.com
>


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