Noise-cancelling microphone
Testing application
Background noise reduction is a great feature if the functionality of the noise-cancelling microphone is tested in production as required today.
Description
The testing of noise-cancellation microphones verifies the correct assembly and functionality of noise-cancelling microphones.
Solution
A loudspeaker is located near the noise-cancelling microphone. The loudspeaker plays a test tone, and the device microphone measures or routes it to an instrument for processing.
