Replying to the question about exporting data to a computer and displaying offsets for each partial:
Yes, it is possible to export and extract some data, but it's not a very user-friendly process. (That isn't really the point of the app.) For example here's an Excel graph of the tuning (railsback) curve for a Boston grand I tuned the other day.
You aren't able to extract the target partials (those are calculated fresh in the app) but you can get the frequencies of each harmonic as measured by the app. These, combined with the tuning curve, are what are used to display the graph at the bottom of the app screen.
If you're interested, here are some steps that you could use to extract the data from a saved tuning file. (There's no one right way to do it.)
1. In the app, in the page that shows the tuning files, long-press on the file you want and select "Export".
2. Use a separate file management app to locate the exported tuning file on your device and email it to yourself. Or you can plug the device into your computer with a USB cord and transfer it that way.
3. Download and install the program called Notepad++ on your computer
4. Download the exported tuning file onto your computer and open it with Notepad++
5. Open the "Find and Replace" tool (Ctrl+H on Windows) and make sure the option for "Search mode: extended" is selected
6. Find and replace all "," with \n (Note: the quotation marks are part of what you are replacing!)
7. Find and replace all ":" with , (Again, that's quotation mark, colon, quotation mark)
8. Find and replace all " with (Replace all remaining quotation marks with nothing)
9. Save and close Notepad++. Then select the file name, and change the file extension from .etf to .csv
10. Open the .csv file in Excel or your favorite spreadsheet program.
11. (Optional) Select all and sort the spreadsheet by the first column. This will group together the different types of data.
The tuning curve offsets (in cents, from 12-tone equal temperament) are listed after the word "delta".
You also get to see the inharmonicity, harmonic frequencies (measured), and relative strengths of each partial. If you want to graph the inharmonicity do it on a log scale.
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Anthony Willey
Shoreline WA
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Original Message:
Sent: 04-16-2018 19:26
From: Jason Kanter
Subject: Easy Piano Tuner
How about exporting data to a computer, or at least displaying the offsets for each partial? I'm interested in creating graphs that represent a tuning. Sort of like this, if it comes through:
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jason's cell 425 830 1561
On Mon, Apr 16, 2018 at 3:39 PM, Scott Kerns via Piano Technicians Guild
Original Message------
Does EasyPT record the tuning in any way?
Yes, if you have the pro version. You can record information about the piano and it's saved in a file that can be reused. In fact (and I think this may be unique to EPT) if you don't purposely save the tuning, the file is automatically saved with just the date in the file information. Very handy if you accidentally forget to save your tuning!
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"That Tuning Guy"
Scott Kerns
www.thattuningguy.com
Tunic OnlyPure, TuneLab & Easy Piano Tuner user
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