What are the advantages of using a MEMS microphone over an electret microphone (ECM)?
Thanks — good question. Billions of ECMs are made every year and can be found in just about anything that uses a microphone. However, MEMS microphones have some significant advantages over ECMs in their performance, reliability, and manufacturability. Below is a list of a few of these advantages.
There are further details about some of these measurements in application note AN-1003 (pdf link). I hope that this helps to show why MEMS microphones may be better-suited than ECMs for many applications.
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