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Mems microphones frequency response

Question asked by rodriguez.raul.002 on Sep 28, 2015
Latest reply on Jun 22, 2016 by chen.kevin.012
I´m using an stm32f4-discovery board and I´m trying to sample the on board mems microphone at 48 kHz. I record a large number of samples and send them to the computer via USB (if someone knows a better way of doing this, help would be appreciated ) and analyze them on the PC. The problem is that I´m trying to use frequencies above 15 kHz and the power of the signal in that part of the spectrum is really small. Does someone knows about the frequency response of the mic on that range? Is it good enough or am I wasting my time?
Thanks for the reply.