A device and method are disclosed which perform diagnostics on a microphone and display diagnostic information and instructions to a user. The invention uses a processor to create histograms of the PCM (Pulse Code Modulation) signal after removing any dc bias to determine signal and ...http://www.google.fr/patents/US5822718?utm_source=gb-gplus-shareBrevet US5822718 - Device and method for performing diagnostics on a microphone
Device and method for performing diagnostics on a microphone
