title: Swift: How can i record an audio and then play it in reverse
body: <p>How can i record audio and then play it in reverse? in swift!</p>
  
  <p>There are some topics about that but they are too old and i can't figure out how.
  I'd really appreciate if someone could help me.
  I searched in AVAudioEngine and other frameworks and it seems there is not any way. at least a simple one</p>