SAT III beating octaves.

David Ilvedson ilvey@jps.net
Tue, 30 Jan 2001 21:30:34 -0800


Jim,

If I pluck the F3 string instead of using the key I am exciting a 
different harmonic but I often can get a better reading.  How will this 
affect the FAC?

David I.

 
> Here is a method to gain better accuracy: Instead of tuning the F3 to
> the setting F5=0.0 (it is difficult to tune to the accuracy of .1
> cent), if the F3 is fairly close, adjust the cents to really stop the
> dot rotation. Then hold down the SHIFT button and touch the MSR button
> to reset the SAT to that pitch. Now, you can press UP OCTAVE, use the
> MSR button to slow or stop the dots  while playing the F3 (trim up
> using the cents buttons if necessary for absolute precision). Store
> this number (which represents the difference in cents between the 4th
> and 8th partials of F3) in the usual fashion by holding down the SHIFT
> button and pressing the STO STRETCH button. Utilize the same procedure
> for measuring the A4 Stretch number more accurately, and the same for
> the C6 number. Remember that just before calculating the tuning, you
> must recalibrate the SAT to a true A-440 by holding down the SHIFT and
> TUNE buttons to get into the Calibrate mode and then press TUNE to get
> out. Select a page of memory by using the dedicated PAGE Up or Page Dn
> buttons. Now you can do the "rollover technique" (hold down STRETCH,
> hold down MEM, release STRETCH, release MEM). Wait 4 or 5 seconds and
> you have a good tuning for the complete piano. If your personal taste
> dictates more or less octave stretch, then you can use the DOB as
> described above. The DOB can be invoked at any point where you would
> like the tuning to be a little different.
> 
> Shakespeare wrote a play "As You Like It". Dr. Sanderson wrote a
> tuning program "As You Like It." I love it. The SAT III does what I
> want it to do.
> 
> Jim Coleman, Sr.
> 


David Ilvedson, RPT


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