Yes, so I used this site: http://www.audiocheck.net/audiofrequenc ... netone.php where I could set the db of the down loaded tone. Again, not perfect, but assuming the mic, computer and software perform the same all the time, as long as I'm always using this particular tool it's ok. Certainly I can not confidently use it as a reference for comparison to other results made from a different analyzer tool.byacey wrote:The way I read the description is that you can change the mic to match that of a known calibrated mic. If the supposed calibrated mic has errors, so will your emulated calibration.
I'm not sure that I would trust a $0.35 iphone mic cartridge for any accuracy, under any circumstances.
Short of that, I can't see any possible way to properly calibrate any microphone without a calibrated sound source.
It's like using a micrometer that is not zeroed. As long as I'm only using it to find the difference between two measurements it's ok. However, if I need to make sure that part is exactly .250 then I had better zero it to a test block. This is assuming the treads on the spindle are not worn. If they are, then nothing will ever be accurate. It's the carpenter always using the same rule or tape. Your measurement may be different.
Granted I'm very new this this level of understanding of sound and running a PA, but if all I need to know is differences, the Audio Tool calibrated as I suggest will give me that. If I need to hit the mark on a frequency, well then I won't be using my ears or this tool.