[pianotech] Aurally pure octaves

[Andrew & Rebeca Anderson]

Hear here,
I've always been suspicious of "tuning-curves" because pianos don't  
have smooth inharmonicity "curves".

I didn't like the priorities the VT100 came with.  I changed them and  
now produce a tuning like I do aurally: every time and in all  
environments that the tuner can still pick up the piano sound in (ie  
too noisy for me to do aurally).

Check it out,
Andrew Anderson

On Apr 17, 2009, at 9:15 AM, Ron Koval wrote:

>
>> 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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