Sound actuated microphone system
    1.
    发明授权
    Sound actuated microphone system 失效
    声音麦克风​​系统

    公开(公告)号:US4489442A

    公开(公告)日:1984-12-18

    申请号:US429430

    申请日:1982-09-30

    IPC分类号: H04R3/00 H04R27/00 H04M3/56

    CPC分类号: H04R27/00 H04R3/005

    摘要: A microphone channel is constructed from a pair of unidirectional microphone elements mounted back-to-back for monitoring sound coming from a predetermined area of space. The output signals of each microphone element are converted to D.C. logarithmic signals which are compared for gating an electrical output signal of a microphone element to the output/amplifying system.

    摘要翻译: 麦克风通道由背对背安装的一对单向麦克风元件构成,用于监测来自预定空间区域的声音。 每个麦克风元件的输出信号被转换成D.C.对数信号,这些信号被比较以将麦克风元件的电输出信号门控到输出/放大系统。