公开(公告)号：US10339950B2

公开(公告)日：2019-07-02

申请号：US15634158

申请日：2017-06-27

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Kurt S. Fienberg ,  David Yeager

IPC: G06F17/00 ,  G10L21/0216 ,  H04R1/40 ,  G10K11/34

Abstract: Systems and methods for beamforming audio signals received from a microphone array. One method includes receiving, with an electronic processor communicatively coupled to the microphone array, a plurality of audio signals from the microphone array. The method includes generating a plurality of beams based on the plurality of audio signals. The method includes detecting that an electronic device is in a body-worn position. The method includes, in response to the device being in the body-worn position, determining at least one restricted direction based on the body-worn position. The method includes generating, for each of the plurality of beams, a likelihood statistic. The method includes, for each of the beams, assigning a weight to the likelihood statistic based on the at least one restricted direction to generate a weighted likelihood statistic. The method includes generating an output audio stream from the plurality of beams based on the weighted likelihood statistic.

公开(公告)号：US20180374495A1

公开(公告)日：2018-12-27

申请号：US15634158

申请日：2017-06-27

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Kurt S. Fienberg ,  David Yeager

IPC: G10L21/0216 ,  H04R1/40 ,  G10K11/34

CPC classification number: G10L21/0216 ,  G10K11/34 ,  G10L2021/02166 ,  H04R1/406 ,  H04R3/005 ,  H04R2410/01 ,  H04R2420/07 ,  H04R2430/20

Abstract: Systems and methods for beamforming audio signals received from a microphone array. One method includes receiving, with an electronic processor communicatively coupled to the microphone array, a plurality of audio signals from the microphone array. The method includes generating a plurality of beams based on the plurality of audio signals. The method includes detecting that an electronic device is in a body-worn position. The method includes, in response to the device being in the body-worn position, determining at least one restricted direction based on the body-worn position. The method includes generating, for each of the plurality of beams, a likelihood statistic. The method includes, for each of the beams, assigning a weight to the likelihood statistic based on the at least one restricted direction to generate a weighted likelihood statistic. The method includes generating an output audio stream from the plurality of beams based on the weighted likelihood statistic.