title: Audio for Kivy app works on windows but not android
body: <p>I have been trying to figure out this problem for days. I have two .wav files that I want to play when I press a button in my app.
  When I run the program on my windows device the audio plays just fine. But when I compile my kivy app using buildozer into an .apk and run in it on my android device the audio doesn't play.
  I did run a adb logcat on my app and this is the error it shows this:</p>
  <pre><code>[WARNING] [AudioSDL2   ] Unable to load /data/data/org.test.myapp/files/app/137523215.wav: b'java.io.FileNotFoundException: /etc/timidity/freepats.cfg'`.  
  </code></pre>
  <p>I also included the wav files in my bulldozer spec file.</p>
  <pre><code># (list) Source files to include (let empty to include all the files)
  source.include_exts = py,png,jpg,kv,atlas,ttf,wav
  </code></pre>
  <p>What am I missing?</p>