title: How to Play two audio files together in iOS
body: <p>I am working on one of the application with sound files.
  In this application there is one slider implementation.
  On the basis of slider ratio all files will be handled to set sound volume.
  But with this volume effect there will be a sound combination of two different sets of files suppose there are sound set of fiel A &amp; B.</p>
  
  <p>There will be a combination of 75% of A file &amp; 25% of B file.</p>