title: How do you change the output volume of a sound?
body: <p>I'm using this code to play a sound.</p>
  
  <p>I would like to give the user the ability to alter the volume of the sound. Can you tell me how to do this?</p>
  
  <pre><code>NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
  Notification notification = new Notification();
  notification.sound = Uri.parse("android.resource://emad/raw/quarter");
  </code></pre>
  
  <p>Thanks.</p>
  
  <p>Truly,
  Emad</p>