Hi gang I've had some time to experiment with the Tunic OnlyPure software and can offer a few more bits of information. It is NOT a pure 12ths tuning. That's easy to check - just tune a piano and then measure to see if there is a 3:1 or 6:2 match. Nope. It's not just dealing with a single partial - or somehow is responsive (at least in the middle and lower end) to the sounding partials of the piano. Different pianos will end up tuned to different locations, even when measured at a bunch of different partials. It doesn't seem to learn or change a tuning based on anything heard more than at the single note level. Turn the machine off or on, walk to other very different piano and it treats them consistently. Kent's observation of how well it did tuning mis-matched pianos together prompted me to generate the following graph.... Baldwin studio upright and Mason & Hamlin A - measured at the single partial level from section to section. Notice anything peculiar? Hmmmm... Ron Koval Chicagoland _________________________________________________________________ Get free photo software from Windows Live http://www.windowslive.com/online/photos?ocid=PID23393::T:WLMTAGL:ON:WL:en-US:SI_PH_software:082009 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090806/2aa55f75/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: two piano compare.JPG Type: image/pjpeg Size: 16963 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090806/2aa55f75/attachment-0001.bin>
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