I am trying to find a method to calibrate my microphone sensors. My Arduino microphone is currently taking readings from 0-1023
I have access to an SPL meter, so my initial idea was to play pink noise out of my speakers in bursts. This way i could note the readings and match them
Sensor reading = 700 SPL reading = 77dB 700 = 77dB Sensor reading = 800 SPL reading = 85dB 800 = 85dB Sensor reading = 900 SPL reading = 94dB 900 = 94dB
I could even plot this on a nice graph.
Although I'm looking online and it doesn't see to be that simple. Is my method the correct way of doing it? or is there a better way without paying loads of money?