[pianotech] The Tunic OnlyPure Tuner

[Kent Swafford]

You ask the right questions. So far, I haven't heard much good  
speculation about what might be under the hood of PureTuner.

A few have suggested some things for me to look at in order to learn a  
bit about how the ETD really works.

And I have few of my own ideas for research I could do when I have the  
time.

But I'm really looking forward to the time when there are more users  
of PureTuner, experienced in what it can do, and comparing notes with  
all the other users.

Meanwhile, I'm finding I am enjoying a good mystery...


Kent



On Mar 4, 2009, at 5:56 PM, David B. Stang wrote:

>
> I read Kent Swafford's article in the March Journal about the
> "Tunic OnlyPure" ETD with great interest. Kent said inventor "has
> stated his intention to withhold most explanations of how all
> this works", and their web site says very little other than what
> the article said.
> Kent writes that the inventor claims it "deals with inharmonicity
> in a new way that is automatic".
> It seems magical to me that any device could just start tuning
> a note without having previously recorded data about the inharmonicity
> of other notes. How does it "know" where to place a treble pitch,
> without inharmonicity data from lower strings?
> Kent said it did a great job, but it can't really be magic, so, I'm
> just wondering if anyone has any general speculation about
> how it works. (Gosh, I was just beginning to think I had
> some idea of how regular ETD's work, now this comes along!)
> Thanks
>
> David B. Stang
> Columbus Ohio
>
>
>