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人们日常生活中使用的有线电话就是摸拟通信,当你对着电话话筒说话时,话筒把话音转换成连续的电信号传送出去,电信号的频率和幅值随讲话人的语言连续变化。我们把这种
The wired telephone used in daily life is the analog communication. When you speak to the telephone microphone, the microphone converts the voice into a continuous electric signal and transmits it. The frequency and amplitude of the electric signal vary continuously with the speaker’s language. We take this