Controlling wind noise in a bilateral microphone array

    公开(公告)号:US09843861B1

    公开(公告)日:2017-12-12

    申请号:US15347445

    申请日:2016-11-09

    Inventor: Ryan Termeulen

    Abstract: A pair of earphones have microphone arrays each providing a plurality of microphone signals. A processor receives the microphone signals and applies a first set of filters to a subset of the plurality of microphone signals from each of the arrays, the first set of filters inverting the signals below a cutoff frequency, and provides the first-filtered signals and the remainder of the microphone signals from each of the arrays to a second set of filters. The processor uses the second set of filters to combine the signals to generate a far-field signal that is more sensitive to sounds originating a short distance away from the earphones than to sounds close to the earphones above the cutoff frequency, and omnidirectional below the cutoff frequency, determines a level of wind noise present in the microphone signals, and adjusts the cutoff frequency as a function of the determined level of wind noise.

    APPARATUS FOR VOICE COMMUNICATION
    57.
    发明申请

    公开(公告)号:US20170352360A1

    公开(公告)日:2017-12-07

    申请号:US15173138

    申请日:2016-06-03

    Applicant: NXP B.V.

    Abstract: One example discloses an apparatus for voice communication, including: a first wireless device including a first pressure sensor having a first acoustical profile and configured to capture a first set of acoustic energy within a time window; wherein the first wireless device includes a near-field magnetic induction (NFMI) signal input; wherein the first wireless device includes a processing element configured to: receive, through the NFMI signal input, a second set of acoustic energy captured by a second pressure sensor, having a second acoustical profile, within a second wireless device and within the time window; apply a signal enhancement technique to the first and second sets of acoustic energy based on the first and second acoustical profiles; and output an enhanced voice signal based on applying the signal enhancement.

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