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分析了平均调幅度在实际监测中的不足，提出了“有声平均调幅度”的概念．介绍了用单片机实现有声平均调幅度测量的硬件结构和软件设计．
Analyzed the shortcomings of the average amplitude modulation in the actual monitoring, and put forward the concept of “the average amplitude modulation with sound”. This paper introduces the hardware structure and software design of using MCU to measure the average amplitude modulation of sound.