[CAUT] Bridge root material

[Keith Roberts]

It really seems to me that sound transmission in wood is a product of grain
structure, curing process and coatings. There is a guy up here who builds
guitars worth 50K to 100K that make a Martin sound small. He was telling a
guy all the different prep he does to the surface. I think he builds up
layers of a super hard surface over specially cured, treated and cured again
wood.
Thanks
Keith

On Fri, Oct 1, 2010 at 2:35 PM, Delwin D Fandrich <del at fandrichpiano.com>wrote:

>
>
> *From:* Keith Roberts [mailto:keithspiano at gmail.com]
> *Sent:* Friday, October 01, 2010 2:04 PM
> *To:* Delwin D Fandrich; College and University Technicians
> *Subject:* Re: [CAUT] Bridge root material
>
>
>
> At first I thought it was dim light and yellowing shellac that had confused
> me. So I sanded it down a little and it looks like Oak to me and my buddy.
> It is a German Piano and so must be of European origin.
>
>
>
> But then again, Hemholtz used holes to isolate frequency and project sound
> directionally. That holes are a sound absorbing medium is not true. They are
> a heat absorbing as insulation but all insulations do not make great sound
> barriers. Still, it's probably not as good
>
> KR
>
>
>
> Seriously, I can’t see it mattering all that much. They both have about the
> same mass, stiffness and internal resistance and not much else seems to
> matter.
>
>
>
> Delwin D Fandrich
>
> Piano Design & Fabrication
>
> 620 South Tower Avenue
>
> Centralia, Washington 98531 USA
>
> del at fandrichpiano.com
>
> ddfandrich at gmail.com
> Phone  360.736.7563
>
>
>
>
>
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