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<DIV><FONT face=Georgia size=2>I echo your thoughts, David. It seems =
to not
jive. I have an engineering backround so I have to model the situation =
and
analize. Here are a few postulates FOR the theory. </FONT></DIV>
<DIV><FONT face=Georgia size=2>For the hammer to create a louder =
tone, the
hammer must have a higher velocity when it hits the string and therefore =
when it
leaves the jack. In the static world the knuckle leaves the jack before =
the key
hits the punching. Obviously the flex and delay (compression) in the =
system
allows the key to contact the punching before the let off point on =
harder blows.
The flex of each particular piano will have to be taken into account. In =
pianos
with less flex the effect/difference will be less because the delay not =
being so
great, let off will occur before deacceleration has a chance to affect =
to speed
of the jack. With a softer punching, slow down of the key begins sooner =
and
takes up more of the stroke. As the flex unwinds through the system a =
gradual
and early slow down of the key will result in a decrease in velocity at =
let off.
Just as with the teeter totter, as you take up the landing with your =
legs, you
control the launch velocity of the kid.</FONT></DIV>
<DIV><FONT face=Georgia size=2></FONT> </DIV>
<DIV><FONT face=Georgia size=2>Andre works on a lot of large grands =
with big
keys and lots of mass = more flex/delay.</FONT></DIV>
<DIV><FONT face=Georgia size=2></FONT> </DIV>
<DIV><FONT face=Georgia size=2>kpiano</FONT></DIV></BODY></HTML>