This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Thanks for the post Sarah: The only problem with this part of the analysis is that we are really talking equal acceleration not equal force applied to the key. Since a heavier hammer would, presumably, have more lead in the key (if the balance weight was the same) then an equal amount of force applied to the key by the finger would net out to the same acceleration of the hammer (flexing and friction aside). The point being that it's the acceleration that counts. If the two hammers are accelerated equally, which is what happens in practice, then by f=ma, the force imparted to the string would be greater with the hammer with more mass. David Love davidlovepianos@comcast.net -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Sarah Fox Sent: Saturday, October 02, 2004 9:23 AM To: Pianotech Subject: Impulse and response snip. Mass of the hammer: As Bernhard alluded, a heavier hammer will move more slowly than a lighter hammer, given the same energy delivered at the key. The collision will therefore be slower, the felt compression will be slower, and so the ramping of force will be slower. A heavier hammer should result, therefore, in a darker sound. . ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/99/e3/4c/5c/attachment.htm ---------------------- multipart/alternative attachment--
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