title: File format b'\xff\xf3D\xc4' not understood. Only 'RIFF' and 'RIFX' supported
body: <p>I have a problem that when i try to read the wav file in python:</p>
  <pre><code>fs, audio_signal = read('output.wav')
  print('\nSignal shape:', audio_signal.shape)
  print('Signal Datatype:', audio_signal.dtype)
  print('Signal duration:', round(audio_signal.shape[0] / float(fs), 2), 'seconds')
  audio_signal = audio_signal / np.power(2, 15)
  audio_signal = audio_signal [:1000]
  time_axis = 1000 * np.arange(0, len(audio_signal), 1) / float(fs)
  plt.plot(time_axis, audio_signal, color='blue')
  plt.xlabel('Time (milliseconds)')
  plt.ylabel('Amplitude')
  plt.title('Input audio signal')
  </code></pre>
  <p>I have an error that it is the title of my problem and i dont know how to fix that. So that i hope someone can help me with this bug</p>