title: IPhone audio: Volume faint ( but okay with headphones )
body: <p>I'm getting unexpected audio behaviour:</p>
  
  <p><strong>problem -- iPhone device volume is very faint,  but if I plug in headphones the volume is perfect</strong></p>
  
  <ol>
  <li>firstly, start app on iPhone the with nothing plugged in.</li>
  <li>Audio works, but it is so faint, really as if it was on minimum volume.  but it is on maximum volume.</li>
  <li>now I plug in headphones.   full volume.   great!</li>
  <li>unplug headphones. Go to (2)</li>
  </ol>
  
  <p>It doesn't matter whether I start with the headphones plugged in or not. It seems to be an unrelated problem</p>
  
  <p>EDIT: this behaviour is peculiar to my app. I have tried Apple's AVTouch sample, and this behaves correctly with and without headphones.</p>