title: How to record and play sound in iPhone app?
body: <p>I tried using <code>AVAudioSession</code> and <code>AVAudioPlayer</code> to record and play sounds respectively but the sound volume is very low.</p>
  <p>I tried putting volume value of <code>AVAudioPlayer</code> to 1.0 and more but didn't help much.</p>
  <p>What could be my other options to record sound which can be loud enough to play back?</p>