SPL Meters | Mic's | Calibration | Sound Cards
I have built a DIY microphone calibrator.
With that small construction, I can check the linearity of SPL microphones.
I have used that construction to create a calibration map of my SPL:
Left I had a Bruel&Kjaer class 1 SPL, right my cheapo SPL.
The pistonphone actuator is actually just a...