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.
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