[CAUT] Semantics

Keith Roberts keithspiano at gmail.com
Sun May 10 23:06:42 MDT 2009


And as stated before, or maybe not, the string produces lots of vibrational
energy which is created by the energy of the hammer.

It creates very little sound energy.

The string does have the ability to transmit or transduce that energy to
other vibrating things. Since energy is neither created nor destroyed, it
only changes type, it is the vibrational energy that creates the energy in
the sound board and not the sound energy. If you stop the bridge from
vibrating, is the sound energy amplified? The thing that confuses people is
that the frequency of the energy is the same for the sound energy of the
string as well as the vibrational energy that drives the soundboard. The
vibrational energy is contained in the steel wire and is a product of its
tension, length and mass and how much energy moves it.

Just because this vibrational energy produces a small amount of energy in
the form of sound, coincidently the same frenquency as the sound produced by
the board, it does not mean the sound energy you hear from the string is the
energy that is creating the sound from the board. The sound energy created
by the string, dissapates into the air, adding almost nothing to the overall
sound and zero to the energy of the board. If the sound energy adds no
energy to the board, then how can the sound be considered to be amplified by
the board?

As long as this post is, it's about time for Ric to jump in with pages of
individual replies to every point made throughout the whole thing and really
compost this topic.

Keith Roberts
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