Geez, I had my glasses ON and I thought it was a spring too! Oh boy! From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of David Love Sent: Tuesday, October 19, 2010 12:22 PM To: pianotech at ptg.org Subject: Re: [pianotech] Interesting find 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 _____ From: Terry Farrell <mfarrel2 at tampabay.rr.com> Sender: pianotech-bounces at ptg.org Date: Tue, 19 Oct 2010 12:05:52 -0400 To: <pianotech at ptg.org> ReplyTo: 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 _____ avast! Antivirus <http://www.avast.com> : Outbound message clean. Virus Database (VPS): 10/19/2010 Tested on: 10/19/2010 1:37:59 PM avast! - copyright (c) 1988-2010 AVAST Software. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101019/37ada605/attachment.htm>
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