[CAUT] The fundamental - Where is it?

[Don Mannino]

Works best to 
 
- Wear gloves
- Do it at the exact center.  
- Push down with a thumb then let the string slip out sideways.  Keep
the fingernails away - just use the sides of your thumbs
 
It depends on the piano what you will hear.  I just tried it on a
concert grand, there is plenty of low rumbling tone.  On a 5" grand, the
movement could be seen easily, but no sound besides the small amount of
partials I got going.
 
Don Mannino

  _____  

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Porritt, David
Sent: Monday, March 29, 2010 12:30 PM
To: caut at ptg.org
Subject: Re: [CAUT] The fundamental - Where is it?



Don:

 

Jim Ellis mentioned a way to get A0 to vibrate at the fundamental.  He
said to press down on the string pretty hard then let go of it as
quickly as possible but not in a way that would pluck it.  It will
oscillate at the fundamental frequency and if you didn't allow it to be
"plucked" it would pretty much be the fundamental.  You won't hear much
but you can see it vibrating.

 

dp 

 

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Donald McKechnie
Sent: Monday, March 29, 2010 2:11 PM
To: caut at ptg.org
Subject: [CAUT] The fundamental - Where is it?

 

Fred,

 

Perhaps one of these:

 

http://www.bhphotovideo.com/c/product/398993-REG/Phonic_PAA3_USB__PAA3_H
andheld_Audio.html#specifications

 

Not sure what beer brand yet but I'm leaning towards Duvel. I'm open to
other suggestions. :-) Buy a plane ticket to Ithaca and you are invited
to the chapter meeting where I plan to win!

 

Don

 

	From: Fred Sturm <fssturm at unm.edu>

	Date: March 29, 2010 1:07:46 PM EDT

	To: caut at ptg.org

	Subject: Re: [CAUT] The fundamental - Where is it?

	Reply-To: caut at ptg.org

	
	
	On Mar 29, 2010, at 9:40 AM, Donald McKechnie wrote:
	
	
	

	I'm hoping I can borrow/rent a sensitive enough machine to
record lower frequencies and put together a chapter meeting on the
subject.

	
	
	Biologists studying elephants record ultrasonic frequencies in
some fashion, so there must be some kind of equipment that works with
those extra low frequencies.
	            This must be a pretty special kind of beer to merit
so much effort. Are we all invited <G>?
	Regards,
	Fred Sturm
	fssturm at unm.edu


Donald McKechnie

Piano Technician

Ithaca College

dmckech at ithaca.edu

607.274.3908

 

 

 

 

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