title: How can I use FFmpeg convert the audio codec of a video file?
body: <p>I have a large group of videos with an audio codec of <strong>AAC</strong>, I need the codec to be <strong>Linear PCM</strong>. How can I do this without re-transcoding the video? I am a command line novice and may need the basics explained. </p>
  
  <p>I'll be using OS X</p>
  
  <p>Thank you!</p>