[CAUT] Accujust and grunting fish bait

[David Love]

Actually, let me put this a different way.  I don't believe it would be
incorrect to say that while the sound is amplified, the soundboard is not an
amplifier.  We shouldn't confuse the energy produced and transferred with
the volume of "sound".  It's only sound by virtue of the soundboard existing
in a air medium.  Were the piano existing in a vacuum there would still be
transfer of energy to the soundboard, but there would be no sound because
there is no air to move.  The amplification of sound comes about because the
soundboard is more efficient at moving more air than the strings.  That is a
different thing altogether than talking about the energy which is
transferred from the string to the soundboard.  That represents only half of
what is taking place.  Amplified when referring to the sound volume is an
appropriate term, I believe.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of David
Love
Sent: Friday, 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.  After all, the soundboard
could be made out of something so rigid that it actually moved less air than
the vibrating string.  So I would argue you could correctly say that the
sound volume is "amplified" by virtue of the energy being transduced into a
form that is more efficient at moving larger volumes of air.  In fact, when
talking about it in terms of the energy produced by the sheer greater volume
of moving air, there is amplification.  So the issue is somewhat more
complicated than just talking about the energy transfer between systems.
There is a net effect that occurs outside the limits of energy transduction,
i.e., the volume of sound is greater.  But it does cause some confusion
talking about it this way.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Ron
Nossaman
Sent: Friday, May 08, 2009 4:48 AM
To: caut at ptg.org
Subject: Re: [CAUT] Accujust and grunting fish bait

David Love wrote:
> Sorry to disagree but I think in this case it is a semantic issue and 
> the original question has been lost on this tangent. 

I disagree. It's not a semantic issue. The terms are clearly 
defined, regardless of colloquial usage. It's the continued 
use and tolerance of fuzzy ill defined concepts that make 
these discussions nearly useless, and doomed to repeat endlessly.

Ron N