title: Selecting input mic for Mac Audio Queue Services?
body: <p>I am currently using the Mac OS X Audio Queue Services API for audio recording and sound analysis.  Works fine using the default mic input.  </p>
  
  <p>If there is more than one microphone plugged into the Mac (USB, headset jack, etc.), is there a way to programmatically enumerate and select which mic is to be used for audio input within an application?  (e.g. not have to send the user to the system preferences panel, which may affect a users other audio applications.)  If so, which APIs should be used to select the mic input.</p>