hyperplanar
Senior Member
MMM-measurements (average of (R+sub) + (L+sub)) with a individually calibrated UMIK-1 (calibrated by hifi-selbstbau.de) vs. MA 1 uncalibrated vs. MA 1 calibrated with the method described by @hyperplanar (pls do not overthink small differences between UMIK 1 and MA 1 because of the nature of MMM measurements). I don´t know which one is "correct", just wanted to show the difference the calibration makes:
View attachment 120359
Same, but zoomed in (20 dB scale), no smoothing, thinner traces:
View attachment 120361
PS: I aligned the traces manually for best looking fit.
Thanks for checking! The most noticeable difference for the purposes of calibration IMO is the region around 600-6000 Hz, looks about half a dB higher and closer to your calibrated UMIK. But overall the differences are quite negligible.
Would you mind sharing a graph of your final MA1 calibration curve? I'm curious to see how different it is from the golden mic curve alone.