Tuning with a fork [fork partials]

[John Ross]

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Jerry,
It stands to reason, if it were called harmonic distortion, it would have harmonics.
There is all kinds of distortion, and it is NOT all harmonic. Check out an electronics book. As two examples, how about phase distortion and  amplitude distortion.
I know you said most common, but that is just a matter of opinion.
 
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
  ----- Original Message ----- 
  From: Jerry Cohen 
  To: 'Pianotech' 
  Sent: Monday, August 23, 2004 5:34 PM
  Subject: RE: Tuning with a fork [fork partials]


  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. 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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