AudioProcessing.py 文件源码

def init_audio(self, wav=None, path=None, show_pic=False):
            """
            ??????
            :param wav: ????????wave??
            :param path: ??????
            :param show_pic: ?????
            :return: None
            """
            if wav is None:
                if path is None:
                    print('Error: ?????????')
                self.__wav = wave.open(path, 'rb')
            else:
                self.__wav = wav
            nframes = self.__wav.getnframes()
            '''byte??????????'''
            str_data = self.__wav.readframes(nframes)
            '''????????'''
            self.__wdata = np.fromstring(str_data, dtype=np.short)
            '''???????'''
            if self.__wav.getnchannels() == 2:
                '''??????2????????'''
                self.__wdata.shape = -1, 2
                self.__wdata = self.__wdata.T
                '''???????????????wdata[0]?'''
                for _ in range(len(self.__wdata[0])):
                    if self.__wdata[0][_] < self.__wdata[1][_]:
                        self.__wdata[0][_] = self.__wdata[1][_]
                self.__wdata = self.__wdata[0]
            self.__wdata = np.delete(self.__wdata, np.where(self.__wdata == 0))

            if show_pic:
                x = [_ for _ in range(len(self.__wdata))]
                pylab.plot(x, self.__wdata, 'b')
                pylab.show()