Computerized Multi Microphone Test System
This is an incremental improvement in acoustic testing for product quality control.
The paper tackles acoustic testing by proposing a multi-microphone system that surrounds the product under test, processing signals simultaneously to improve distortion measurement accuracy.
An acoustic testing approach based on the concept of a microphone sensor surrounding the product under test is proposed. Microphone signals are processed simultaneously by a test system computer, according to the objective of the test. The spatial and frequency domain selectivity features of this method are examined. Sound-spatial visualization algorithm is observed. A test system design based on the concept of a microphone surrounding the tested product has the potential to improve distortion measurement accuracy.