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文章分析音频检测电路的原理,音频信号通过该检测电路,将触发输出低电平,使系统自动切换到AUX(辅助输入)信号源进行播放。
The article analyzes the principle of the audio detection circuit, the audio signal through the detection circuit, the trigger output low, the system automatically switches to the AUX (Auxiliary Input) signal source for playback.