title: Pitch detection in Python
body: <p>The concept of the program I'm working on is a Python module which detects certain frequencies (human speech frequency 80-300hz) and by checking from a database shows the intonation of the sentence. I use SciPy to plot frequency of the sound files, but I cannot set any certain frequency in order to analyze pitch. How can I do this?</p>
  
  <p>more info: I would like to be able to set a defined pattern in speech (e.g. Rising, Falling) and the program detects if the sound file follows the specific pattern.</p>