[pianotech] The Tunic OnlyPure Tuner

Kent Swafford kswafford at gmail.com
Wed Mar 4 16:34:47 PST 2009


In the early 80's I heard a roomful of techs break out in laughter  
when Dr. Al mentioned that the SAT was going to cost $1000. We  
apparently got over the sticker shock...


Kent


On Mar 4, 2009, at 6:29 PM, Al Guecia/AlliedPianoCraft wrote:

> Kent,
>
> After reading your review, I thought I would give it a try. WOW  
> hefty price for a no bells and whistles ETD.
>
> Al
>
>
> --------------------------------------------------
> From: "Kent Swafford" <kswafford at gmail.com>
> Sent: Wednesday, March 04, 2009 7:16 PM
> To: <pianotech at ptg.org>
> Subject: Re: [pianotech] The Tunic OnlyPure Tuner
>
>> 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
>>>
>>>
>>>
>>
>>
>>
>




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