title: How to get Pi-Phase from sound to get a destructive interference in Python
body: <p>first: I don't know where to put this topic because it's an programming and sound-question. Please comment if it's at the wrong place.</p>
  
  <p>But this is my question: How can I load a sound into Python and create the "reverse-sound" of it. So when I play the original and the "pi-shifted" file, they create an destructive interference and cancel each other out so you hear almost nothing. Are there any Libraries to use?</p>
  
  <p><a href="https://youtu.be/a8ENb_ufjPg?t=1m52s" rel="nofollow">Here's</a> a small explanation-video.</p>
  
  <p>Thank you a lot. Just want to experiment a little.</p>