Python wav sound convert

gistfile1.txt

with open("audioData_original.wav", 'wb') as of: 
    of.write(message['audio']) 
    audioFile = wave.open("audioData_original.wav", 'r') 
    n_frames = audioFile.getnframes() 
    audioData = audioFile.readframes(n_frames) 
    originalRate = audioFile.getframerate() 
    af = wave.open('audioData.wav', 'w') 
    af.setnchannels(1) 
    af.setparams((1, 2, 16000, 0, 'NONE', 'Uncompressed')) 
    converted = audioop.ratecv(audioData, 2, 1, originalRate, 16000, None) 
    af.writeframes(converted[0]) 
    af.close() 
    audioFile.close()