中文说明：计算A权计声压级的方法，已经时域频域内计算声压级的方法，把数据进行处理，通过修改参数得到正确的声压级参数，校准信号94db和114db是用来作为模板进行计算
English Description：
Calculation method of the a-weighted total sound pressure level, and already in the time domain and frequency domain method to calculate sound pressure level, processing data, getting the right sound pressure level by modifying the parameters parameter calibration signal 94db/114dB calculation is used as a template for