AudioProcessing.py 文件源码

def fft(frames, nfft=512):
            """
            ???????

                ????????????????????????????????????
            ??????????????????????????????????????
            ??????????????????????????????????????
            ??????????????????????????????????????
            ????

            :param frames:????????
            :param nfft:fft???????
            :return:???nfft//2+1?????????????
            """
            complex_spec = np.fft.rfft(frames, nfft)
            return np.absolute(complex_spec)