David, Ron - and others... Yes, I agree a tuning file would be better than just inharmonicity measurement. David has a Verituner now, so I'd suggest going with that. It produces target numbers for a number of partials - from 8 in the bass and midrange to just one for the top octave. In the spirit of "more data is better" we should use all of them. There is a data export mini-program that can dump it into a spreadsheet, but the ipod/ipad file export hasn't been released yet. If you save the files, listing relative humiditywe should be able to get the data out painlessly at a later date. Let me create a custom tuning style that should replicate a master tuning - should we stick to instruments that only have wound strings on the bass bridge to replicate the RPT testing piano - or maybe different pianos would give us more info? David can test the style to determine if it will meet our needs... What's the "recipe"? 6:3 wound bass strings?4:2 temperament and down to bass break?2:1 to the top - starting where? I assume there aren't transition sections between the different octave types? If we can make this work, it bypasses needing to actually tune the piano, just step through the notes A0-C7 to gather the inharmonicity data and let the Verituner calculate... Shouldn't take more than 10 minutes or so! Ron Koval -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120515/fd2a940a/attachment.htm>
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