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Are dB meters on smartphones accurate?

Hi, All. first post here. I installed a dB meter app on my phone that I use the when I go to small local shows. It's just to satisfy my curiosity, really. I was wondering how a phone app compares to "real" dB meters. Do the commercial ones have to be certified and calibrated? Have any of you compared both side by side?

Just wondering.😀
ddom

Showing 1 response by oldhvymec

oldhvymec
5,101 posts
 
All about the mic isn't  it? calibration? Your finger half way over the speaker, position, you know all the stuff you have to do if your interested in the data being accurate and in turn more useful. 

If you just want to know how loud it is. It will give you an idea about SPLs though, how accurate? good question..

Regards
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