piano/violin

[Carl Meyer]

This is Carl,  I brought up the subject, so I'd like to respond.

All the power (energy) that the soundboard produces comes from the vibrating
strings.  An amplifier adds power from another source such as a battery or
you plug it in the wall.  There is almost no limit to how much you could
amplify something, but transducing can only  use the energy that exists.
There are things you can due to improve the efficiency of the transducer
like introducing
resonances or using an ear trumpet (also a transducer) but if you use a
hearing aid (an amplifier) you are introducing an outside source of power.

Webster didn't say anything about the type of power so I assume it could be
from any source.

More below::::

----- Original Message -----
From: <Duplexdan@AOL.COM>
To: <pianotech@ptg.org>
Sent: Wednesday, June 13, 2001 9:37 PM
Subject: Re: piano/violin


> If i may I'd like to jump in on transducer, Del.My old Webster's New
> collegiate Dictionary , last printing 1950, has this definition:
>
> A device actuated by poe\wer from one system and supplying power to a
second
> system.
>
> It would seem that the transducing characteristic of the soundboard that
Del
> points out is absolutely correct. The only question I feel that mitigates
the
> renaming of the board from amlifier to transducer is :
>
> What kind of power? There is no question that the board transduces the
power
> from the strings to the bridge to the board. But the effect of the
> transduction is exactly to amplify the sound of the strings, is it not?

No, the transduction allows us to hear what is happening in the string.

You mention (sound of the strings) well, the strings don't have much sound.
For lack of a better word, let's say the strings have inertial energy and we
want sound energy.
So we transduce it.

Looking up amplify in the dictionery doesn't help much, but the key is the
addition of an outside source of energy.

We sure got you thinking, didn't we?  That's good.

Thanks for bringing this up.

Best regards

Carl Meyer


> Dan Franklin, RPT