title: How to Access Website Audio Source with Javascript?
body: <p>So, I would like to use the Web Audio API to manipulate audio that is streaming from websites.  (For example, create a dynamic bass boost for listening via Soundcloud.)  </p>
  
  <p>I'm familiar with the Web Audio API and know how to use it to stream audio from the microphone or create a synthesizer. </p>
  
  <p><strong>However, I cannot determine is the Web Audio API (or Javascript, in general) is capable of "grabbing" audio from an already existing audio source.  Is it possible to access audio from a site?</strong>  </p>
  
  <p>Thanks.</p>