def readfile(file_name):
		music_file = wave.open(file_name, 'rb')
		type_channel = music_file.getnchannels()
		sample_rate = music_file.getframerate()
		sample_width = music_file.getsampwidth()
		num_frames = music_file.getnframes()

		raw_data = music_file.readframes(num_frames ) # Returns byte data
		music_file.close()

		## Formating raw_data into Integer data

		num_samples = num_frames * type_channel

		if sample_width == 1:
       			fmt = "%iB" % num_samples # read unsigned chars
    		elif sample_width == 2:
        		fmt = "%ih" % num_samples # read signed 2 byte shorts
    		else:
       	 		raise ValueError("Only supports 8 and 16 bit audio formats.")

		formated_data = list(struct.unpack(fmt,raw_data))
		return formated_data