Timeline for How to get output voltage of microphone?
Current License: CC BY-SA 3.0
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| Nov 1, 2015 at 20:05 | comment | added | Neil_UK | That's the tricky bit. It's easy for an amateur to calculate dB(ref), that is the dB ratio with respect to some ref. However, without a calibrated microphone, or access to a calibrated sound source, you won't have an absolute value for ref. You could look up the rated SPL of your speakers, or the rated value for a 747 taking off 2000ft above you, but without an absolute reference, you will not be measuring dBA, just dB(some_arbitrary_reference). Ideally, you will know someone who knows someone in a calibration lab, or an audiometer's, buy them a beer, and use their kit for a moment. | |
| Nov 1, 2015 at 18:27 | comment | added | user90392 | And that reference point is the sensitivity? or do I actually have to measure that? | |
| Nov 1, 2015 at 17:40 | history | answered | Neil_UK | CC BY-SA 3.0 |