![]() ![]() The derived ECM8000 calibration SPL measurement(BLUE) tracks pretty close to the GREEN baseline, but the phase is a bit off at the ends. Pay attention to the two graphs and realize that our calibration file is generic. I just tried it using a Cross Spectrum Labs calibrated UMIK-1's measurement (GREEN) as the baseline and an un-calibrated ECM8000 measurement(RED). I don’t think Behringer has one, but we do: Mic/Meters Downloads Page. Hope this helps and if anyone has a better way to do it, or corrections, please advise. I added an extra 0 to the last 2 lines (3rd column) as what is in the CS calibration files.I then output 2 columns as a text file (65508 lines), first column being the frequency and the second column being the SPL delta from the 3rd worksheet.I then loaded both files into a spreadsheet in different worksheets and subtracted the calibrated SPL column from the un-calibrated SPL calibrated column creating a new delta column in a 3rd worksheet.I edited the text files to remove the file and column header information leaving only the 3 measurement numeric columns (frequency, SPL and phase).I used the "File/Export Measurement as Text" option to do a text dump of the calibrated and un-calibrated files.Click to expand.I just tried it using a Cross Spectrum Labs calibrated UMIK-1's measurement (GREEN) as the baseline and an un-calibrated ECM8000 measurement(RED). ![]()
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January 2023
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