SPEA acoustic test units are designed for the high-performance production test of MEMS microphones and speakers: They integrate all the elements required for both the electrical and functional tests of the devices, including the equipment for the verification of the microphone/speaker working.

Based on a high-insulation acoustic chamber, the microphone test unit is able to produce the exact acoustic replicate of the electric input signals provided by the test system, while insulating the device under test from all external noise. The acoustic stimulus is individual and fully independent on each test site. The excellent insulation allows accurate and repeatable measurements, even at low frequencies, and well-defined uniform test conditions. 

The speaker test unit is based on high-precision calibrated microphones able to accurately record the signal emitted by the device under test. Every site can be equipped with a dedicated ear simulator, able to replicate the sound transmission inside the human ear.