[Granite]

Sounds like you are referring to the calibration of each mic. The solution is to use a reference mic to calibrate to every time. Then your gains and trims will be identical and repeatable every time.

I remember in the early 2000’s I had an NTI acoustilyzer and mini-spl mic and my system sounded like Jesus tuned it. Those were the days.

 

[Granite]

Does the cmt-10 require phantom power or something - why even bother with the others?

 

[Granite]

yeah 12-48v

I’m getting to that point. The sheer curiosity of how tight are these things has me wondering.

I mean, unless inconsistent to 2db in spots is average, then a good cal file should make it set.
But even the xlr mics have issues, having to get the signal with no errors to the software, and I noticed a higher noise floor with xlr also.

Idk. It’s very nit picky absolutely. Im Just really paying close attention to detail on some of these measurements and as long as I force myself to be aware I can spot the problems.

it’s so easy to just assume the data is right. I mean, it’s right there in front of you see……(as someone looks at there measurements)

Can you manually calibrate them all so they’re the same? It doesn’t seem too hard to do - there’s apps out there for this.

Here’s a site that plotted FR for 1000 mics:

Hifi-Selbstbau - 1000 Mikrofonkalibrierungen - eine Übersicht

HiFi-Selbstbau - Das Online-Magazin

www.hifi-selbstbau.de

Their conclusion?
If you want to measure more accurately than +/- 2 dB, an individual calibration of the measuring microphone (possibly including preamplifier) is essential!