这是嵌入式开发进行AD数据采集时，通过软件对数据进行防干扰处理的方法汇总，希望对大家有帮助-This is the embedded data acquisition development of AD when the data through software deal with anti-interference method of aggregation, in the hope that everyone has to help

音乐（语音）通过语音芯片转化为差分输出的模拟量电压信号，经过差分减法电路转化为单端信号，AD转换芯片将模拟信号转化为数字信号。利用单片机设计数字滤波器对语音信号进行处理，根据低通、带通和高通三个滤波器的计算结果输出三路PWM信号。三路PWM信号经驱动电路分别控制LED光带红、绿和蓝三种颜色的亮度，灯光颜色明暗随音乐变化。-Music (Voice) by voice chip into a differential output analog voltage signal, through a