Tuning with a fork [fork partials]

[Jerry Cohen]

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When a device (speaker, amplifier etc.) produces distortion in the form of
harmonics, it is call "harmonic distortion". It is the most common form of
distortion in audio.

 

Jerry Cohen

NJ Chapter

 

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf
Of John Ross
Sent: Monday, August 23, 2004 12:29 PM
To: dporritt@mail.smu.edu; Pianotech
Subject: Re: Tuning with a fork [fork partials]

 

Hi David,

 

I realize that.

 

However, I don't think the distortion could be considered an harmonic, which
is what the question asked.

 

John

John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca

----- Original Message ----- 

From: David M. <mailto:dporritt@mail.smu.edu>  Porritt 

To: pianotech@ptg.org 

Sent: Monday, August 23, 2004 1:15 PM

Subject: Re: Tuning with a fork [fork partials]

 

John:

 

I'm sure that the Accufork and TuneLab both produce a sine wave.  Howver,
unless you have a very capable speaker there is going to be distortion there
and partials added.  It takes quite a good speaker to reproduce a 440Hz sine
wave with no distortion.

 

dave


__________________________________________

David M. Porritt, RPT

Meadows School of the Arts

Southern Methodist University

Dallas, TX 75275

dporritt@mail.smu.edu

 


----- Original message ---------------------------------------->
From: John Ross <jrpiano@win.eastlink.ca>
To: Pianotech <pianotech@ptg.org>
Received: Mon, 23 Aug 2004 13:02:28 -0300
Subject: Re: Tuning with a fork [fork partials]


Hi,

Al Sanderson told me that the Accu-Fork, gave a pure tone, with no
harmonics.

Regards,

John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca

----- Original Message ----- 

From: BobDavis88@aol.com 

To: pianotech@ptg.org 

Sent: Monday, August 23, 2004 12:55 PM

Subject: Re: Tuning with a fork [fork partials]

 

Joe Goss writes:

To check your accu fork open the battery compartment and look for a little
white plastic slot ( 1/8" at the most ). 

Hello Joe,

 

Thanks for the info. I didn't make myself clear. My AccuFork is right on
pitch. What I was wondering about was if the harmonic content of a newer
unit was any different from the partial-rich output of mine.

 

Thanks for the reply,

Bob Davis


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