[CAUT] Accujust and grunting fish bait

[Delwin D Fandrich]

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.