title: iOS - iPhone sound level low after recording sound using AVFoundation
body: <p>I have an app that I'm working on that one of its functions is to record a sound through the <code>iPhone microphone</code> and be able to play it back to me. </p>
  
  <p>Problem: After I record lets say, me talking for example, the playback level is extremely low. Now I did switch from <code>AudioToolbox</code> to <code>AVFoundation</code> and this happened after the switch.  Do I need to code in a volume parameter for <code>AVFoundation</code>?  I'm not seeing anything in the <code>documentation</code>.</p>
  
  <p>I appreciate any help.  </p>