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公开(公告)号:US4489442A
公开(公告)日:1984-12-18
申请号:US429430
申请日:1982-09-30
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。