Microphone array for acoustic source separation

    公开(公告)号:US09774953B2

    公开(公告)日:2017-09-26

    申请号:US14787621

    申请日:2014-04-29

    Inventor: David Nugent

    Abstract: A system for directionally selective sound reception comprises an array of pressure sensors (120a, 120c) each arranged to output a pressure signal indicative of pressure, and a processor arranged to receive the pressure signals. The sensor array comprises a support (130) supporting the four sensors. Two of the sensors are mounted on one side of the support and at least a third sensor is supported on an opposite side of the support. The sound pressure difference measured between the first sensor and the second sensor caused by sound arriving at the array from a direction parallel to the support (130) is dependent on the distance between the first and second sensors and the nature of material in the space between the first and second sensors. The sound pressure difference measured between the first and third sensors caused by sound travelling perpendicular to the support is dependent on the distance between the first and third sensors. The nature of material in the space between the first and third sensors, and the spacings and the materials are selected such that the sound pressure differences are substantially equal.

    MICROPHONE ARRAY FOR ACOUSTIC SOURCE SEPARATION
    2.
    发明申请
    MICROPHONE ARRAY FOR ACOUSTIC SOURCE SEPARATION 有权
    麦克风阵列用于声源分离

    公开(公告)号:US20160080867A1

    公开(公告)日:2016-03-17

    申请号:US14787621

    申请日:2014-04-29

    Inventor: David Nugent

    Abstract: A system for directionally selective sound reception comprises an array of pressure sensors (120a, 120c) each arranged to output a pressure signal indicative of pressure, and a processor arranged to receive the pressure signals. The sensor array comprises a support (130) supporting the four sensors. Two of the sensors are mounted on one side of the support and at least a third sensor is supported on an opposite side of the support. The sound pressure difference measured between the first sensor and the second sensor caused by sound arriving at the array from a direction parallel to the support (130) is dependent on the distance between the first and second sensors and the nature of material in the space between the first and second sensors. The sound pressure difference measured between the first and third sensors caused by sound travelling perpendicular to the support is dependent on the distance between the first and third sensors. The nature of material in the space between the first and third sensors, and the spacings and the materials are selected such that the sound pressure differences are substantially equal.

    Abstract translation: 用于定向选择性声音接收的系统包括一组压力传感器(120a,120c),每个压力传感器被布置成输出指示压力的压力信号;以及处理器,被布置成接收压力信号。 传感器阵列包括支撑四个传感器的支撑件(130)。 两个传感器安装在支撑件的一侧上,并且至少一个第三传感器被支撑在支撑件的相对侧上。 由平行于支撑件(130)的方向到达阵列的声音引起的第一传感器和第二传感器之间测量的声压差取决于第一和第二传感器之间的距离以及在第二传感器和第二传感器之间的空间中的材料的性质 第一和第二传感器。 由垂直于支架的声音引起的第一和第三传感器之间测量的声压差取决于第一和第三传感器之间的距离。 选择第一和第三传感器之间的空间中的材料的性质以及间隔和材料,使得声压差基本相等。

    ACOUSTIC SOURCE SEPARATION
    3.
    发明申请
    ACOUSTIC SOURCE SEPARATION 有权
    声源分离

    公开(公告)号:US20150055796A1

    公开(公告)日:2015-02-26

    申请号:US14388280

    申请日:2013-03-26

    Abstract: A system for directionally selective sound reception comprises an array of pressure sensors each arranged to output a pressure signal indicative of pressure, and processing means arranged to receive the pressure signals, identify a plurality of frequency components of the signals, identify at least one source direction, and identify at least one of the components as coming from the source direction. The sensor array comprises support means having two opposite sides and four sensors, at least one of the sensors being supported on each of the sides of the support means.

    Abstract translation: 用于定向选择性声音接收的系统包括一组压力传感器,每个压力传感器被布置成输出指示压力的压力信号,以及处理装置,被布置为接收压力信号,识别信号的多个频率分量,识别至少一个源方向 并且将至少一个组件识别为来自源方向。 传感器阵列包括具有两个相对侧和四个传感器的支撑装置,至少一个传感器被支撑在支撑装置的每个侧面上。

    Acoustic source separation
    4.
    发明授权
    Acoustic source separation 有权
    声源分离

    公开(公告)号:US09473841B2

    公开(公告)日:2016-10-18

    申请号:US14388280

    申请日:2013-03-26

    Abstract: A system for directionally selective sound reception comprises an array of pressure sensors each arranged to output a pressure signal indicative of pressure, and processing means arranged to receive the pressure signals, identify a plurality of frequency components of the signals, identify at least one source direction, and identify at least one of the components as coming from the source direction. The sensor array comprises support means having two opposite sides and four sensors, at least one of the sensors being supported on each of the sides of the support means.

    Abstract translation: 用于定向选择性声音接收的系统包括一组压力传感器,每个压力传感器被布置成输出指示压力的压力信号,以及处理装置,被布置为接收压力信号,识别信号的多个频率分量,识别至少一个源方向 并且将至少一个组件识别为来自源方向。 传感器阵列包括具有两个相对侧和四个传感器的支撑装置,至少一个传感器被支撑在支撑装置的每个侧面上。

Patent Agency Ranking