[CAUT] Accujust and grunting fish bait

[David Ilvedson]

So the energy in the vibrating string is equal to the energy of the vibrating soundboard?

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Delwin D Fandrich" <del at fandrichpiano.com>
To: caut at ptg.org
Received: 5/8/2009 11:41:48 AM
Subject: Re: [CAUT] Accujust and grunting fish bait


>David,

>The sound created by the strings is not made louder by the soundboard. The sound
>we hear coming from the soundboard is fresh new sound. 

>Yes, the mechanical vibrations along the string do create a minute amount of
>sound--as can be expected given the string's minute surface area. You can hear
>this sound if you make a single-note model and strike a taut string (or a set of
>strings) pulled to some appropriate tension. But this sound created by the
>strings is very weak.

>It is not until the strings are coupled in some manner to a
>soundboard--typically through a bridge--and those mechanical vibrations are able
>to physically move soundboard that the bulk of the sound we hear coming from the
>piano is created. This sound is created by the soundboard. It is not the sound
>created by the string that has been amplified--it is all new sound. Technically
>one could say that the sound created by the soundboard is added to that created
>by the strings but the amount of sound created by the strings is so small it is
>usually ignored.

>ddf

>| -----Original Message-----
>| From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On 
>| Behalf Of David Love
>| Sent: May 08, 2009 6:46 AM
>| To: caut at ptg.org
>| Subject: Re: [CAUT] Accujust and grunting fish bait
>| 
>| OK agreed that people should understand the concepts and 
>| express them clearly but while transducer does describe the 
>| function of the soundboard assembly converting one form of 
>| energy to another, it doesn't describe the phenomenon of that 
>| the sound is made louder.