Blocked microphone detection

Robert Luke (Inventor), Thomas Ivan Harvey (Inventor), Vitaliy Sapozhnykov (Inventor)

    Research output: Patent


    Detection of a blocked microphone involves receiving microphone signals from a plurality of microphones. A plurality of signal feature measures are derived from the microphone signals. The signal feature measures are normalised. The normalised signal feature measures are variably weighted in response to detected environmental conditions in the microphone signals. The variably weighted normalised signal feature measures are combined to produce an output indication of whether a microphone is blocked.
    Original languageEnglish
    Patent number10412518
    IPCH04R 29/00,H04R 1/40,H04R 3/00
    Publication statusPublished - 10 Sept 2019


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