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May 12, 2021 at 20:10 vote accept SeAlGhz
Feb 19, 2021 at 16:06 comment added Hilmar You can use any SPL as long as your signal to noise ratio is good and you are not overdriving anything. The actual measurement on the production line depends on the brand and type of microphones. High quality measurement microphones are typically measured using a coupler. More "normal" microphones are measured in a test both against a known reference.
Feb 19, 2021 at 13:20 comment added SeAlGhz I actually have another question. when a company releases a frequency response of a microphone, they give us a diagram that it shows the sensitivity in different frequency. I wonder which input SPL they use in all frequency ? do they change the SPL and frequency concurrently ? or the just fix SPL at 94dB?
Feb 19, 2021 at 13:01 comment added SeAlGhz you can assume that I have a really precise reference microphone and I can find out the SPL of speaker by means of this reference microphone. I also don't really care about direction and distance because I use the reference mic so the only thing that matters to me is SPL. also assume that I afford very precise speaker too and don't care about it's response. I appreciate your help
Feb 19, 2021 at 12:53 history answered Hilmar CC BY-SA 4.0