Analog Devices discusses the sensitivity of analog and digital microphones.
Sensitivity, the ratio of the analog output voltage or digital output value to the input pressure, is a key specification of any microphone. Mapping units in the acoustic domain to units in the electrical domain determines the magnitude of the microphone output signal, given a known input.
This article will discuss the distinction in sensitivity specifications between analog and digital microphones, how to choose a microphone with the best sensitivity for the application, and why adding a bit (or more) of digital gain can enhance the microphone signal.
First link bad format.
link to the referenced article:
http://www.analog.com/library/analogDialogue/archives/46-05/understanding_microphone_sensitivity.html
I have an application using an electret mic and have a terrible with noise when brushing the case. How to I suspend an electret to isolate it from noise brushing the case.
Thanks for your help