[pianotech] Aurally pure octaves

Ron Koval drwoodwind at hotmail.com
Fri Apr 17 07:15:54 PDT 2009


>From a long post by RicB:
 
"...ETD's are not contrived to listen in this 
fashion yet in the second place. To do so the would need to 
simultaneously listen to the entire spectrum of at least two different 
notes before deciding the target frequency(s) for the note to be tuned. 
Or at best have stored the needed information of the already tuned note, 
sample the note to be tuned and then calculate that notes target.  This 
clearly is not the case in todays ETD's."
 
 
You may want to revisit your research into the Verituner.  While not listening to the ENTIRE spectrum of at least two different notes, it does use the information from a good number of partials to make tuning target placement choices.  Combined with a thoughtful use of the custom style function, the technician can dictate which two or more notes are to be compared when calculating the tuning for each specific note.  I've advocated a two-pass tuning for a number of years to allow the machine to have all of the inharmonicity data during the fine tuning pass.  The Verituner really is different from the rest in that respect.  The result is NOT a smooth curve tuning at any single partial level.  
 
Ron Koval
Chicagoland
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