|Create Date||November 7, 2019|
|Last Update||June 7, 2020|
In this technote, we discuss MEMS microphone array measurements and use a test board with 16 PDM mics configured in a line array to illustrate the typical measurements.
The technote specifically details the test procedure, and important considerations, for measuring key performance factors of the microphone array using a PDM 16-equipped APx525 audio analyzer. The technote has also been updated to reflect the multiple simultaneous input types feature (multi-input) added in the version 6.0 release of APx software.
|TN 140: Testing Microphone Arrays with the APx PDM 16 Module|