This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment 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 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/2c/03/b1/39/attachment.htm ---------------------- multipart/alternative attachment--
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