Software library for interpreting PCM Data from MEMS Microphone

[SWink.1]

Do you have a software library or information how to interpret the converted PCM audio data?

My project goal is to detect the accoustic level inside offices. Therefore I use the mems microphone mp34dt05-a and convert the incoming PDM Data to PCM data. But now I have to do some more signal processing. I need a filter curve which is adjusted to the human ear like a conversion from PDM data to DB(a) accoustic values. Do you have software support or some information how to do this.

[Miroslav BATEK]

Hello @SWink.1​ 

please check X-CUBE-AUDIO adn related User Manuals. There is sound meter library which might suit your needs.

[MReyn]

I guess you have used the sound meter library? How did you calculate the dB value?