title: iOS 6 Audio multi-route - use external microphone AND internal speaker simultaneously
body: <p>This presentation: <a href="http://www.slideshare.net/invalidname/core-audioios6portland" rel="nofollow noreferrer">http://www.slideshare.net/invalidname/core-audioios6portland</a> on Core Audio in iOS6 seems to suggest (slide 87) that it is possible to over-ride the automatic output / input of audio devices using Av Session.</p>
  
  <p>So, specifically, it is possible to have an external mic.plugged into an iOS6 device and output sound through the internal speaker ? I've seen this asked before on this site: <a href="https://stackoverflow.com/questions/8739225/ios-route-audio-in-thru-jack-audio-out-thru-inbuilt-speaker">iOS: Route audio-IN thru jack, audio-OUT thru inbuilt speaker</a> but no answer was forthcoming.</p>
  
  <p>Many thanks !</p>