title: Reading output audio data from Spotify Web Playback stream
body: <p>I am currently playing around with audio visualization and I am trying to work with Spotify's Web Playback SDK to stream and analyze songs directly on my site.</p>
  
  <p>However, I am unsure what the limitations are when it comes to actually reading the streamed data. I've noticed that an iframe is generated for the Spotify player, and I've read that spotify uses the encrypted media extensions to stream the audio on chrome.</p>
  
  <p>Is it even possible to read the music data from the Spotify api? Maybe, I can read the output audio from the browser?</p>