title: PyAudio, how to tell frequency and amplitude while recording?
body: <p>I've used the PyAudio default recording example, and added numpy and scipy.
  I can only use <code>scipy.io.wavefile.read('FILE.wav')</code>, after recording the file, however, and it also gives me this random tuple, eg: 
  <code>(44100, array([[ 0,  0],
         [-2,  0],
         [ 0, -2],
         ..., 
         [-2, -2],
         [ 1,  3],
         [ 2, -1]], dtype=int16))</code>.
  What does this array give me and do you know how else you can get the frequency/amplitude of each frame of a wav file, preferably while recording?</p>