io_methods.py 文件源码

def wavWrite(y, fs, nbits, audioFile):
        """ Write samples to WAV file
        Args:
            samples: (ndarray / 2D ndarray) (floating point) sample vector
                        mono: DIM: nSamples
                        stereo: DIM: nSamples x nChannels

            fs:     (int) Sample rate in Hz
            nBits:  (int) Number of bits
            fnWAV:  (string) WAV file name to write
        """
        if nbits == 8:
            intsamples = (y+1.0) * AudioIO.normFact['int' + str(nbits)]
            fX = np.int8(intsamples)
        elif nbits == 16:
            intsamples = y * AudioIO.normFact['int' + str(nbits)]
            fX = np.int16(intsamples)
        elif nbits > 16:
            fX = y

        write(audioFile, fs, fX)