title: AudioKit File Normalization
body: <p>I'm trying to normalize audio file after record to make it louder or vice versa, but i'm getting error <code>WARNING AKAudioFile: cannot normalize a silent file</code></p>
  
  <p>I have checked recordered <code>audioFile.maxLevel</code> and it was <code>1.17549e-38</code>, minimum float. </p>
  
  <p>I'm using official <a href="https://github.com/AudioKit/AudioKit/tree/master/Examples/iOS/Recorder" rel="nofollow noreferrer">Recorder example</a>, and to normalize after record i added this code:</p>
  
  <pre><code>let norm = try player.audioFile.normalized(newMaxLevel: -4.0);
  </code></pre>
  
  <p>What I'm doing wrong? Why maxLevel invalid? Record is loud enough.</p>