*EDIT 2020-05-24* Updates and latest version here
Looking for projects, I have been playing with an Excel app to allow graphing of various JVC autocal .jgd and Arve .conf curves, with conversion between them and low end adjustments. I just recently added c-spline code from Doug Jenkins that makes the interpolation a bit more accurate, sometimes.
The functionality is pretty complete for now, but there is very little error correction in the code. I am not a mathematician, just an AV enthusiast with a bit of an Excel/VBA skill set. I am sure that from a pure accuracy perspective, this is not the perfect tool, but I am having fun comparing and playing with some of the fantastic custom curves that are out there.
I am posting the Excel file here for anyone that wants to play with it. It is a file with a lot of VBA code, so you have to enable the code to run. Most of the sheets are password protected to prevent messing things up. The plotting sheet is not yet as there is a fair amount of coding cleanup needed to allow that to work. If you want to look under the hood, PM me and I'll give you the password.
It will read from and write to .jgd and .conf files. However it will only write the data table to the .conf files. Arve's tool will be able to open it and upload to the PJ but it will no longer be able to manipulate it. JVC Autocal should be able to open the .jgd files and upload them, but I haven't tried it yet. .jgd files only have 14 data points, while Arve .conf files have 256, so I am more interested in outputting Arve .conf files, although you can do either.
I am having fun with it, comparing various curves and adjusting them. Hopefully it is pretty straight forward, as I have not yet drafted any instructions, but happy to walk anyone through it. I did a lot of cleanup today, so hopefully I didn't introduce any bugs.
PLEASE use this at your own risk. I can't be responsible for any issues with loading curves into your PJ.
Low end adjustments
Multiple curve graph
- 12 .jgd - 12 .conf - 12 adjusted
Top end zoom
any area can be zoomed into.
Bottom end zoom